<?xml version="1.0" encoding="UTF-8"?>
<!--
    Copyright (c) 2022 Oracle and/or its affiliates. All rights reserved.

    This program and the accompanying materials are made available under the
    terms of the Eclipse Public License v. 2.0 which is available at
    http://www.eclipse.org/legal/epl-2.0,
    or the Eclipse Distribution License v. 1.0 which is available at
    http://www.eclipse.org/org/documents/edl-v10.php.

    SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause

-->

<!-- Jakarta Persistence API object/relational mapping file schema -->
<xsd:schema targetNamespace="https://jakarta.ee/xml/ns/persistence/orm" 
  xmlns:orm="https://jakarta.ee/xml/ns/persistence/orm" 
  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  elementFormDefault="qualified" 
  attributeFormDefault="unqualified" 
  version="3.1">

  <xsd:annotation>
     <xsd:documentation><![CDATA[

       This is the XML Schema for the persistence object/relational 
       mapping file.
       The file may be named "META-INF/orm.xml" in the persistence 
       archive or it may be named some other name which would be 
       used to locate the file as resource on the classpath.

       Object/relational mapping files must indicate the object/relational
       mapping file schema by using the persistence namespace:

       https://jakarta.ee/xml/ns/persistence/orm

       and indicate the version of the schema by
       using the version element as shown below:

      <entity-mappings xmlns="https://jakarta.ee/xml/ns/persistence/orm"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="https://jakarta.ee/xml/ns/persistence/orm
          https://jakarta.ee/xml/ns/persistence/orm/orm_3_1.xsd"
        version="3.1">
          ...
      </entity-mappings>


     ]]></xsd:documentation>
  </xsd:annotation>

  <xsd:complexType name="emptyType"/>

  <xsd:simpleType name="versionType">
    <xsd:restriction base="xsd:token">
      <xsd:pattern value="[0-9]+(\.[0-9]+)*"/>
    </xsd:restriction>
  </xsd:simpleType>

  <!-- **************************************************** -->

  <xsd:element name="entity-mappings">
    <xsd:complexType>
      <xsd:annotation>
        <xsd:documentation>

        The entity-mappings element is the root element of a mapping
        file. It contains the following four types of elements:

        1. The persistence-unit-metadata element contains metadata
        for the entire persistence unit. It is undefined if this element
        occurs in multiple mapping files within the same persistence unit.
        
        2. The package, schema, catalog and access elements apply to all of
        the entity, mapped-superclass and embeddable elements defined in
        the same file in which they occur.

        3. The sequence-generator, table-generator, converter, named-query,
        named-native-query, named-stored-procedure-query, and 
        sql-result-set-mapping elements are global to the persistence
        unit. It is undefined to have more than one sequence-generator
        or table-generator of the same name in the same or different
        mapping files in a persistence unit. It is undefined to have
        more than one named-query, named-native-query, sql-result-set-mapping,
        or named-stored-procedure-query of the same name in the same 
        or different mapping files in a persistence unit.  It is also
        undefined to have more than one converter for the same target
        type in the same or different mapping files in a persistence unit.

        4. The entity, mapped-superclass and embeddable elements each define
        the mapping information for a managed persistent class. The mapping
        information contained in these elements may be complete or it may
        be partial.

        </xsd:documentation>
      </xsd:annotation>
      <xsd:sequence>
        <xsd:element name="description" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="persistence-unit-metadata" 
                     type="orm:persistence-unit-metadata"
                     minOccurs="0"/>
        <xsd:element name="package" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="schema" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="catalog" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="access" type="orm:access-type"
                     minOccurs="0"/>
        <xsd:element name="sequence-generator" type="orm:sequence-generator"
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="table-generator" type="orm:table-generator" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="named-query" type="orm:named-query" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="named-native-query" type="orm:named-native-query"
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="named-stored-procedure-query" 
                     type="orm:named-stored-procedure-query"
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="sql-result-set-mapping" 
                     type="orm:sql-result-set-mapping" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="mapped-superclass" type="orm:mapped-superclass" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="entity" type="orm:entity" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="embeddable" type="orm:embeddable" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="converter" type="orm:converter" 
                     minOccurs="0" maxOccurs="unbounded"/>
      </xsd:sequence>
      <xsd:attribute name="version" type="orm:versionType" 
                     fixed="3.1" use="required"/>
    </xsd:complexType>
  </xsd:element>

  <!-- **************************************************** -->

  <xsd:complexType name="persistence-unit-metadata">
    <xsd:annotation>
      <xsd:documentation>

        Metadata that applies to the persistence unit and not just to 
        the mapping file in which it is contained. 

        If the xml-mapping-metadata-complete element is specified,
        the complete set of mapping metadata for the persistence unit 
        is contained in the XML mapping files for the persistence unit.

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="xml-mapping-metadata-complete" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="persistence-unit-defaults" 
                   type="orm:persistence-unit-defaults"
                   minOccurs="0"/>
    </xsd:sequence>
  </xsd:complexType>

  <!-- **************************************************** -->

  <xsd:complexType name="persistence-unit-defaults">
    <xsd:annotation>
      <xsd:documentation>

        These defaults are applied to the persistence unit as a whole 
        unless they are overridden by local annotation or XML 
        element settings. 
        
        schema - Used as the schema for all tables, secondary tables, join
            tables, collection tables, sequence generators, and table 
            generators that apply to the persistence unit
        catalog - Used as the catalog for all tables, secondary tables, join
            tables, collection tables, sequence generators, and table 
            generators that apply to the persistence unit
        delimited-identifiers - Used to treat database identifiers as
            delimited identifiers.
        access - Used as the access type for all managed classes in
            the persistence unit
        cascade-persist - Adds cascade-persist to the set of cascade options
            in all entity relationships of the persistence unit
        entity-listeners - List of default entity listeners to be invoked 
            on each entity in the persistence unit. 
      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
        <xsd:element name="description" type="xsd:string" minOccurs="0"/>
        <xsd:element name="schema" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="catalog" type="xsd:string"
                     minOccurs="0"/>
        <xsd:element name="delimited-identifiers" type="orm:emptyType" 
                     minOccurs="0"/>
        <xsd:element name="access" type="orm:access-type"
                     minOccurs="0"/>
        <xsd:element name="cascade-persist" type="orm:emptyType" 
                     minOccurs="0"/>
        <xsd:element name="entity-listeners" type="orm:entity-listeners"
                     minOccurs="0"/>
    </xsd:sequence>
  </xsd:complexType>

  <!-- **************************************************** -->

  <xsd:complexType name="entity">
    <xsd:annotation>
      <xsd:documentation>

        Defines the settings and mappings for an entity. Is allowed to be
        sparsely populated and used in conjunction with the annotations.
        Alternatively, the metadata-complete attribute can be used to 
        indicate that no annotations on the entity class (and its fields
        or properties) are to be processed. If this is the case then 
        the defaulting rules for the entity and its subelements will 
        be recursively applied.

        @Target(TYPE) @Retention(RUNTIME)
          public @interface Entity {
          String name() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="table" type="orm:table" 
                   minOccurs="0"/>
      <xsd:element name="secondary-table" type="orm:secondary-table" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:sequence>
        <xsd:element name="primary-key-join-column" 
                     type="orm:primary-key-join-column" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="primary-key-foreign-key" 
                     type="orm:foreign-key" 
                     minOccurs="0"/>
      </xsd:sequence>
      <xsd:element name="id-class" type="orm:id-class" minOccurs="0"/>
      <xsd:element name="inheritance" type="orm:inheritance" minOccurs="0"/>
      <xsd:element name="discriminator-value" type="orm:discriminator-value" 
                   minOccurs="0"/>
      <xsd:element name="discriminator-column" 
                   type="orm:discriminator-column" 
                   minOccurs="0"/>
      <xsd:element name="sequence-generator" type="orm:sequence-generator" 
                   minOccurs="0"/>
      <xsd:element name="table-generator" type="orm:table-generator" 
                   minOccurs="0"/>
      <xsd:element name="named-query" type="orm:named-query" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="named-native-query" type="orm:named-native-query" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="named-stored-procedure-query"
                   type="orm:named-stored-procedure-query" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="sql-result-set-mapping" 
                   type="orm:sql-result-set-mapping" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="exclude-default-listeners" type="orm:emptyType" 
                   minOccurs="0"/>
      <xsd:element name="exclude-superclass-listeners" type="orm:emptyType" 
                   minOccurs="0"/>
      <xsd:element name="entity-listeners" type="orm:entity-listeners" 
                   minOccurs="0"/>
      <xsd:element name="pre-persist" type="orm:pre-persist" minOccurs="0"/>
      <xsd:element name="post-persist" type="orm:post-persist" 
                   minOccurs="0"/>
      <xsd:element name="pre-remove" type="orm:pre-remove" minOccurs="0"/>
      <xsd:element name="post-remove" type="orm:post-remove" minOccurs="0"/>
      <xsd:element name="pre-update" type="orm:pre-update" minOccurs="0"/>
      <xsd:element name="post-update" type="orm:post-update" minOccurs="0"/>
      <xsd:element name="post-load" type="orm:post-load" minOccurs="0"/>
      <xsd:element name="attribute-override" type="orm:attribute-override" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="association-override" 
                   type="orm:association-override"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="convert" type="orm:convert"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="named-entity-graph" type="orm:named-entity-graph"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="attributes" type="orm:attributes" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="cacheable" type="xsd:boolean"/>
    <xsd:attribute name="metadata-complete" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="access-type">
    <xsd:annotation>
      <xsd:documentation>

        This element determines how the persistence provider accesses the
        state of an entity or embedded object.

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="PROPERTY"/>
      <xsd:enumeration value="FIELD"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="association-override">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface AssociationOverride {
          String name();
          JoinColumn[] joinColumns() default{};
          JoinTable joinTable() default @JoinTable;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:choice>
        <xsd:sequence>
          <xsd:element name="join-column" type="orm:join-column"
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="foreign-key" type="orm:foreign-key" 
                       minOccurs="0"/>
        </xsd:sequence>
        <xsd:element name="join-table" type="orm:join-table"
                     minOccurs="0"/>
      </xsd:choice>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="attribute-override">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface AttributeOverride {
          String name();
          Column column();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="column" type="orm:column"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="attributes">
    <xsd:annotation>
      <xsd:documentation>

        This element contains the entity field or property mappings.
        It may be sparsely populated to include only a subset of the
        fields or properties. If metadata-complete for the entity is true
        then the remainder of the attributes will be defaulted according
        to the default rules.

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:choice>
        <xsd:element name="id" type="orm:id" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="embedded-id" type="orm:embedded-id" 
                     minOccurs="0"/>
      </xsd:choice>
      <xsd:element name="basic" type="orm:basic"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="version" type="orm:version"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="many-to-one" type="orm:many-to-one"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="one-to-many" type="orm:one-to-many"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="one-to-one" type="orm:one-to-one"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="many-to-many" type="orm:many-to-many" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="element-collection" type="orm:element-collection" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="embedded" type="orm:embedded"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="transient" type="orm:transient"
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="basic">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Basic {
          FetchType fetch() default EAGER;
          boolean optional() default true;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="column" type="orm:column" minOccurs="0"/>
      <xsd:choice>
        <xsd:element name="lob" type="orm:lob" minOccurs="0"/>
        <xsd:element name="temporal" type="orm:temporal" minOccurs="0"/>
        <xsd:element name="enumerated" type="orm:enumerated" minOccurs="0"/>
        <xsd:element name="convert" type="orm:convert" minOccurs="0"/>
      </xsd:choice>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="optional" type="xsd:boolean"/>
    <xsd:attribute name="access" type="orm:access-type"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="cascade-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum CascadeType { ALL, PERSIST, MERGE, REMOVE, REFRESH, DETACH};

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="cascade-all" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="cascade-persist" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="cascade-merge" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="cascade-remove" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="cascade-refresh" type="orm:emptyType"
                   minOccurs="0"/>
      <xsd:element name="cascade-detach" type="orm:emptyType"
                   minOccurs="0"/>
    </xsd:sequence>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="collection-table">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface CollectionTable {
          String name() default "";
          String catalog() default "";
          String schema() default "";
          JoinColumn[] joinColumns() default {};
          UniqueConstraint[] uniqueConstraints() default {};
          Index[] indexes() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:sequence>
        <xsd:element name="join-column" type="orm:join-column" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="foreign-key" type="orm:foreign-key" 
                     minOccurs="0"/>
      </xsd:sequence>
      <xsd:element name="unique-constraint" type="orm:unique-constraint" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="index" type="orm:index" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
  </xsd:complexType>


<!-- **************************************************** -->

  <xsd:complexType name="column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Column {
          String name() default "";
          boolean unique() default false;
          boolean nullable() default true;
          boolean insertable() default true;
          boolean updatable() default true;
          String columnDefinition() default "";
          String table() default "";
          int length() default 255;
          int precision() default 0; // decimal precision
          int scale() default 0; // decimal scale
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="unique" type="xsd:boolean"/>
    <xsd:attribute name="nullable" type="xsd:boolean"/>
    <xsd:attribute name="insertable" type="xsd:boolean"/>
    <xsd:attribute name="updatable" type="xsd:boolean"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
    <xsd:attribute name="table" type="xsd:string"/>
    <xsd:attribute name="length" type="xsd:int"/>
    <xsd:attribute name="precision" type="xsd:int"/>
    <xsd:attribute name="scale" type="xsd:int"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="column-result">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface ColumnResult {
          String name();
          Class type() default void.class;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="class" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="constraint-mode">
    <xsd:annotation>
      <xsd:documentation>

       public enum ConstraintMode {CONSTRAINT, NO_CONSTRAINT, PROVIDER_DEFAULT};

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="CONSTRAINT"/>
      <xsd:enumeration value="NO_CONSTRAINT"/>
      <xsd:enumeration value="PROVIDER_DEFAULT"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->


  <xsd:complexType name="constructor-result">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface ConstructorResult {
          Class targetClass();
          ColumnResult[] columns();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="column" type="orm:column-result" 
                   maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="target-class" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="convert">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Convert {
          Class converter() default void.class;
          String attributeName() default "";
          boolean disableConversion() default false;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="converter" type="xsd:string"/>
    <xsd:attribute name="attribute-name" type="xsd:string"/>
    <xsd:attribute name="disable-conversion" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="converter">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Converter {
          boolean autoApply() default false;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
    <xsd:attribute name="auto-apply" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="discriminator-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface DiscriminatorColumn {
          String name() default "DTYPE";
          DiscriminatorType discriminatorType() default STRING;
          String columnDefinition() default "";
          int length() default 31;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="discriminator-type" type="orm:discriminator-type"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
    <xsd:attribute name="length" type="xsd:int"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="discriminator-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum DiscriminatorType { STRING, CHAR, INTEGER };

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="STRING"/>
      <xsd:enumeration value="CHAR"/>
      <xsd:enumeration value="INTEGER"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:simpleType name="discriminator-value">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface DiscriminatorValue {
          String value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:string"/>
  </xsd:simpleType>

<!-- **************************************************** -->

 <xsd:complexType name="element-collection">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface ElementCollection {
          Class targetClass() default void.class;
          FetchType fetch() default LAZY;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:choice>
        <xsd:element name="order-by" type="orm:order-by"
                     minOccurs="0"/>
        <xsd:element name="order-column" type="orm:order-column"
                     minOccurs="0"/>
      </xsd:choice>
      <xsd:choice>
        <xsd:element name="map-key" type="orm:map-key"
                     minOccurs="0"/>
        <xsd:sequence>
          <xsd:element name="map-key-class" type="orm:map-key-class"
                       minOccurs="0"/>
          <xsd:choice>
            <xsd:element name="map-key-temporal"
                         type="orm:temporal"
                         minOccurs="0"/>
            <xsd:element name="map-key-enumerated"
                         type="orm:enumerated"
                         minOccurs="0"/>
            <xsd:sequence>
               <xsd:element name="map-key-attribute-override"
                            type="orm:attribute-override"
                            minOccurs="0" maxOccurs="unbounded"/>
               <xsd:element name="map-key-convert" type="orm:convert"
                            minOccurs="0" maxOccurs="unbounded"/>
            </xsd:sequence>
          </xsd:choice>
          <xsd:choice>
            <xsd:element name="map-key-column"
                         type="orm:map-key-column"
                         minOccurs="0"/>
            <xsd:sequence>
              <xsd:element name="map-key-join-column"
                           type="orm:map-key-join-column"
                           minOccurs="0" maxOccurs="unbounded"/>
              <xsd:element name="map-key-foreign-key" 
                           type="orm:foreign-key" 
                           minOccurs="0"/>
            </xsd:sequence>
          </xsd:choice>
        </xsd:sequence>
      </xsd:choice>
      <xsd:choice>
        <xsd:sequence>
          <xsd:element name="column" type="orm:column" minOccurs="0"/>
          <xsd:choice>
            <xsd:element name="temporal"
                         type="orm:temporal"
                         minOccurs="0"/>
            <xsd:element name="enumerated"
                         type="orm:enumerated"
                         minOccurs="0"/>
            <xsd:element name="lob"
                         type="orm:lob"
                         minOccurs="0"/>
          </xsd:choice>
        </xsd:sequence>
        <xsd:sequence>
          <xsd:element name="attribute-override"
                       type="orm:attribute-override"
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="association-override"
                       type="orm:association-override"
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="convert" type="orm:convert"
                       minOccurs="0" maxOccurs="unbounded"/>
        </xsd:sequence>
      </xsd:choice>
      <xsd:element name="collection-table" type="orm:collection-table"
                     minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="target-class" type="xsd:string"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="access" type="orm:access-type"/>
</xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="embeddable">
    <xsd:annotation>
      <xsd:documentation>

        Defines the settings and mappings for embeddable objects. Is 
        allowed to be sparsely populated and used in conjunction with 
        the annotations. Alternatively, the metadata-complete attribute 
        can be used to indicate that no annotations are to be processed 
        in the class. If this is the case then the defaulting rules will 
        be recursively applied.

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface Embeddable {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="attributes" type="orm:embeddable-attributes" 
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="metadata-complete" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="embeddable-attributes">
    <xsd:sequence>
      <xsd:element name="basic" type="orm:basic" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="many-to-one" type="orm:many-to-one"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="one-to-many" type="orm:one-to-many"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="one-to-one" type="orm:one-to-one"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="many-to-many" type="orm:many-to-many" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="element-collection" type="orm:element-collection" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="embedded" type="orm:embedded"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="transient" type="orm:transient" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
  </xsd:complexType>

  <!-- **************************************************** -->

  <xsd:complexType name="embedded">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Embedded {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="attribute-override" type="orm:attribute-override" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="association-override" 
                   type="orm:association-override"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="convert" type="orm:convert"
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="embedded-id">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface EmbeddedId {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="attribute-override" type="orm:attribute-override" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="entity-listener">
    <xsd:annotation>
      <xsd:documentation>

        Defines an entity listener to be invoked at lifecycle events
        for the entities that list this listener.

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="pre-persist" type="orm:pre-persist" minOccurs="0"/>
      <xsd:element name="post-persist" type="orm:post-persist" 
                   minOccurs="0"/>
      <xsd:element name="pre-remove" type="orm:pre-remove" minOccurs="0"/>
      <xsd:element name="post-remove" type="orm:post-remove" minOccurs="0"/>
      <xsd:element name="pre-update" type="orm:pre-update" minOccurs="0"/>
      <xsd:element name="post-update" type="orm:post-update" minOccurs="0"/>
      <xsd:element name="post-load" type="orm:post-load" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="entity-listeners">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface EntityListeners {
          Class[] value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="entity-listener" type="orm:entity-listener" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="entity-result">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface EntityResult {
          Class entityClass();
          FieldResult[] fields() default {};
          String discriminatorColumn() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="field-result" type="orm:field-result" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="entity-class" type="xsd:string" use="required"/>
    <xsd:attribute name="discriminator-column" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="enum-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum EnumType {
          ORDINAL,
          STRING
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="ORDINAL"/>
      <xsd:enumeration value="STRING"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:simpleType name="enumerated">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Enumerated {
          EnumType value() default ORDINAL;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="orm:enum-type"/>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:simpleType name="fetch-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum FetchType { LAZY, EAGER };

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="LAZY"/>
      <xsd:enumeration value="EAGER"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="field-result">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface FieldResult {
          String name();
          String column();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="column" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="foreign-key">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface ForeignKey {
          String name() default "";
	  ConstraintMode value() default CONSTRAINT;
          String foreign-key-definition() default "";

        Note that the elements that embed the use of the annotation
        default this use as @ForeignKey(PROVIDER_DEFAULT).

        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="constraint-mode" type="orm:constraint-mode"/>
    <xsd:attribute name="foreign-key-definition" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="generated-value">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface GeneratedValue {
          GenerationType strategy() default AUTO;
          String generator() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="strategy" type="orm:generation-type"/>
    <xsd:attribute name="generator" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="generation-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum GenerationType { TABLE, SEQUENCE, IDENTITY, UUID, AUTO };

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="TABLE"/>
      <xsd:enumeration value="SEQUENCE"/>
      <xsd:enumeration value="IDENTITY"/>
      <xsd:enumeration value="UUID"/>
      <xsd:enumeration value="AUTO"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="id">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Id {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="column" type="orm:column" 
                   minOccurs="0"/>
      <xsd:element name="generated-value" type="orm:generated-value"
                   minOccurs="0"/>
      <xsd:element name="temporal" type="orm:temporal" 
                   minOccurs="0"/>
      <xsd:element name="table-generator" type="orm:table-generator" 
                   minOccurs="0"/>
      <xsd:element name="sequence-generator" type="orm:sequence-generator"
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="id-class">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface IdClass {
          Class value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="index">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface Index {
          String name() default "";
          String columnList();
          boolean unique() default false;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="column-list" type="xsd:string" use="required"/>
    <xsd:attribute name="unique" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="inheritance">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface Inheritance {
          InheritanceType strategy() default SINGLE_TABLE;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="strategy" type="orm:inheritance-type"/>
  </xsd:complexType>

  <!-- **************************************************** -->

  <xsd:simpleType name="inheritance-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum InheritanceType
          { SINGLE_TABLE, JOINED, TABLE_PER_CLASS};

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="SINGLE_TABLE"/>
      <xsd:enumeration value="JOINED"/>
      <xsd:enumeration value="TABLE_PER_CLASS"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="join-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface JoinColumn {
          String name() default "";
          String referencedColumnName() default "";
          boolean unique() default false;
          boolean nullable() default true;
          boolean insertable() default true;
          boolean updatable() default true;
          String columnDefinition() default "";
          String table() default "";
          ForeignKey foreignKey() default @ForeignKey();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="referenced-column-name" type="xsd:string"/>
    <xsd:attribute name="unique" type="xsd:boolean"/>
    <xsd:attribute name="nullable" type="xsd:boolean"/>
    <xsd:attribute name="insertable" type="xsd:boolean"/>
    <xsd:attribute name="updatable" type="xsd:boolean"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
    <xsd:attribute name="table" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="join-table">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface JoinTable {
          String name() default "";
          String catalog() default "";
          String schema() default "";
          JoinColumn[] joinColumns() default {};
          JoinColumn[] inverseJoinColumns() default {};
          UniqueConstraint[] uniqueConstraints() default {};
          Index[] indexes() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:sequence>
        <xsd:element name="join-column" type="orm:join-column" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="foreign-key" type="orm:foreign-key" 
                     minOccurs="0"/>
      </xsd:sequence>
      <xsd:sequence>
        <xsd:element name="inverse-join-column" type="orm:join-column" 
                     minOccurs="0" maxOccurs="unbounded"/>
        <xsd:element name="inverse-foreign-key" type="orm:foreign-key" 
                     minOccurs="0"/>
      </xsd:sequence>
      <xsd:element name="unique-constraint" type="orm:unique-constraint" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="index" type="orm:index" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="lob">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Lob {}

      </xsd:documentation>
    </xsd:annotation>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="lock-mode-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum LockModeType { READ, WRITE, OPTIMISTIC, OPTIMISTIC_FORCE_INCREMENT, PESSIMISTIC_READ, PESSIMISTIC_WRITE, PESSIMISTIC_FORCE_INCREMENT, NONE};

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="READ"/>
      <xsd:enumeration value="WRITE"/>
      <xsd:enumeration value="OPTIMISTIC"/>
      <xsd:enumeration value="OPTIMISTIC_FORCE_INCREMENT"/>
      <xsd:enumeration value="PESSIMISTIC_READ"/>
      <xsd:enumeration value="PESSIMISTIC_WRITE"/>
      <xsd:enumeration value="PESSIMISTIC_FORCE_INCREMENT"/>
      <xsd:enumeration value="NONE"/>

    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

<xsd:complexType name="many-to-many">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface ManyToMany {
          Class targetEntity() default void.class;
          CascadeType[] cascade() default {};
          FetchType fetch() default LAZY;
          String mappedBy() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:choice>
        <xsd:element name="order-by" type="orm:order-by"
                   minOccurs="0"/>
        <xsd:element name="order-column" type="orm:order-column"
                   minOccurs="0"/>
      </xsd:choice>
      <xsd:choice>
        <xsd:element name="map-key" type="orm:map-key"
                   minOccurs="0"/>
        <xsd:sequence>
          <xsd:element name="map-key-class" type="orm:map-key-class"
                   minOccurs="0"/>
          <xsd:choice>
            <xsd:element name="map-key-temporal"
                         type="orm:temporal"
                         minOccurs="0"/>
            <xsd:element name="map-key-enumerated"
                         type="orm:enumerated"
                         minOccurs="0"/>
            <xsd:sequence>
               <xsd:element name="map-key-attribute-override"
                            type="orm:attribute-override"
                            minOccurs="0" maxOccurs="unbounded"/>
               <xsd:element name="map-key-convert" type="orm:convert"
                            minOccurs="0" maxOccurs="unbounded"/>
            </xsd:sequence>
          </xsd:choice>
          <xsd:choice>
            <xsd:element name="map-key-column" type="orm:map-key-column"
                   minOccurs="0"/>
            <xsd:sequence>
              <xsd:element name="map-key-join-column"
                     type="orm:map-key-join-column"
                     minOccurs="0" maxOccurs="unbounded"/>
              <xsd:element name="map-key-foreign-key" 
                           type="orm:foreign-key" 
                           minOccurs="0"/>
            </xsd:sequence>
          </xsd:choice>
        </xsd:sequence>
      </xsd:choice>
      <xsd:element name="join-table" type="orm:join-table"
                   minOccurs="0"/>
      <xsd:element name="cascade" type="orm:cascade-type"
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="target-entity" type="xsd:string"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="mapped-by" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="many-to-one">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface ManyToOne {
          Class targetEntity() default void.class;
          CascadeType[] cascade() default {};
          FetchType fetch() default EAGER;
          boolean optional() default true;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:choice>       
        <xsd:sequence>
          <xsd:element name="join-column" type="orm:join-column" 
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="foreign-key" type="orm:foreign-key" 
                       minOccurs="0"/>
        </xsd:sequence>
        <xsd:element name="join-table" type="orm:join-table" 
                     minOccurs="0"/>
      </xsd:choice>       
      <xsd:element name="cascade" type="orm:cascade-type" 
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="target-entity" type="xsd:string"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="optional" type="xsd:boolean"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="maps-id" type="xsd:string"/>
    <xsd:attribute name="id" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="map-key">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface MapKey {
          String name() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="map-key-class">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface MapKeyClass {
          Class value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="map-key-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface MapKeyColumn {
          String name() default "";
          boolean unique() default false;
          boolean nullable() default false;
          boolean insertable() default true;
          boolean updatable() default true;
          String columnDefinition() default "";
          String table() default "";
          int length() default 255;
          int precision() default 0; // decimal precision
          int scale() default 0; // decimal scale
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="unique" type="xsd:boolean"/>
    <xsd:attribute name="nullable" type="xsd:boolean"/>
    <xsd:attribute name="insertable" type="xsd:boolean"/>
    <xsd:attribute name="updatable" type="xsd:boolean"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
    <xsd:attribute name="table" type="xsd:string"/>
    <xsd:attribute name="length" type="xsd:int"/>
    <xsd:attribute name="precision" type="xsd:int"/>
    <xsd:attribute name="scale" type="xsd:int"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="map-key-join-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface MapKeyJoinColumn {
          String name() default "";
          String referencedColumnName() default "";
          boolean unique() default false;
          boolean nullable() default false;
          boolean insertable() default true;
          boolean updatable() default true;
          String columnDefinition() default "";
          String table() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="referenced-column-name" type="xsd:string"/>
    <xsd:attribute name="unique" type="xsd:boolean"/>
    <xsd:attribute name="nullable" type="xsd:boolean"/>
    <xsd:attribute name="insertable" type="xsd:boolean"/>
    <xsd:attribute name="updatable" type="xsd:boolean"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
    <xsd:attribute name="table" type="xsd:string"/>
  </xsd:complexType>


<!-- **************************************************** -->

  <xsd:complexType name="mapped-superclass">
    <xsd:annotation>
      <xsd:documentation>

        Defines the settings and mappings for a mapped superclass. Is 
        allowed to be sparsely populated and used in conjunction with 
        the annotations. Alternatively, the metadata-complete attribute 
        can be used to indicate that no annotations are to be processed 
        If this is the case then the defaulting rules will be recursively 
        applied.

        @Target(TYPE) @Retention(RUNTIME)
        public @interface MappedSuperclass{}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="id-class" type="orm:id-class" minOccurs="0"/>
      <xsd:element name="exclude-default-listeners" type="orm:emptyType" 
                   minOccurs="0"/>
      <xsd:element name="exclude-superclass-listeners" type="orm:emptyType" 
                   minOccurs="0"/>
      <xsd:element name="entity-listeners" type="orm:entity-listeners" 
                   minOccurs="0"/>
      <xsd:element name="pre-persist" type="orm:pre-persist" minOccurs="0"/>
      <xsd:element name="post-persist" type="orm:post-persist" 
                   minOccurs="0"/>
      <xsd:element name="pre-remove" type="orm:pre-remove" minOccurs="0"/>
      <xsd:element name="post-remove" type="orm:post-remove" minOccurs="0"/>
      <xsd:element name="pre-update" type="orm:pre-update" minOccurs="0"/>
      <xsd:element name="post-update" type="orm:post-update" minOccurs="0"/>
      <xsd:element name="post-load" type="orm:post-load" minOccurs="0"/>
      <xsd:element name="attributes" type="orm:attributes" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="metadata-complete" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="named-attribute-node">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface NamedAttributeNode {
          String value();
          String subgraph() default "";
          String keySubgraph() default "";
        }
 
      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="subgraph" type="xsd:string"/>
    <xsd:attribute name="key-subgraph" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="named-entity-graph">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface NamedEntityGraph {
          String name() default "";
          NamedAttributeNode[] attributeNodes() default {};
          boolean includeAllAttributes() default false;
          NamedSubgraph[] subgraphs() default {};
          NamedSubGraph[] subclassSubgraphs() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="named-attribute-node" 
                   type="orm:named-attribute-node" 
                   minOccurs="0"
                   maxOccurs="unbounded"/>
      <xsd:element name="subgraph" 
                   type="orm:named-subgraph" 
                   minOccurs="0"
                   maxOccurs="unbounded"/>
      <xsd:element name="subclass-subgraph" 
                   type="orm:named-subgraph" 
                   minOccurs="0"
                   maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="include-all-attributes" type="xsd:boolean"/>
  </xsd:complexType>


<!-- **************************************************** -->

  <xsd:complexType name="named-native-query">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface NamedNativeQuery {
          String name();
          String query();
          QueryHint[] hints() default {};
          Class resultClass() default void.class;
          String resultSetMapping() default ""; //named SqlResultSetMapping
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="query" type="xsd:string"/>
      <xsd:element name="hint" type="orm:query-hint" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="result-class" type="xsd:string"/>
    <xsd:attribute name="result-set-mapping" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="named-query">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface NamedQuery {
          String name();
          String query();
          LockModeType lockMode() default NONE;
          QueryHint[] hints() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="query" type="xsd:string"/>
      <xsd:element name="lock-mode" type="orm:lock-mode-type" minOccurs="0"/>
      <xsd:element name="hint" type="orm:query-hint" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="named-stored-procedure-query">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface NamedStoredProcedureQuery {
          String name();
          String procedureName();
          StoredProcedureParameter[] parameters() default {};
          Class[] resultClasses() default {};
          String[] resultSetMappings() default{};
          QueryHint[] hints() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="parameter" 
                   type="orm:stored-procedure-parameter" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="result-class" type="xsd:string"  
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="result-set-mapping" type="xsd:string"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="hint" type="orm:query-hint" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="procedure-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="named-subgraph">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface NamedSubgraph {
          String name();
          Class type() default void.class;
          NamedAttributeNode[] attributeNodes();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="named-attribute-node" 
                   type="orm:named-attribute-node" 
                   minOccurs="0"
                   maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="class" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

<xsd:complexType name="one-to-many">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface OneToMany {
          Class targetEntity() default void.class;
          CascadeType[] cascade() default {};
          FetchType fetch() default LAZY;
          String mappedBy() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:choice>
        <xsd:element name="order-by" type="orm:order-by"
                   minOccurs="0"/>
        <xsd:element name="order-column" type="orm:order-column"
                   minOccurs="0"/>
      </xsd:choice>
      <xsd:choice>
        <xsd:element name="map-key" type="orm:map-key"
                   minOccurs="0"/>
        <xsd:sequence>
          <xsd:element name="map-key-class" type="orm:map-key-class"
                   minOccurs="0"/>
          <xsd:choice>
            <xsd:element name="map-key-temporal"
                         type="orm:temporal"
                         minOccurs="0"/>
            <xsd:element name="map-key-enumerated"
                         type="orm:enumerated"
                         minOccurs="0"/>
            <xsd:sequence>
               <xsd:element name="map-key-attribute-override"
                            type="orm:attribute-override"
                            minOccurs="0" maxOccurs="unbounded"/>
               <xsd:element name="map-key-convert" type="orm:convert"
                            minOccurs="0" maxOccurs="unbounded"/>
            </xsd:sequence>
          </xsd:choice>
          <xsd:choice>
            <xsd:element name="map-key-column" type="orm:map-key-column"
                   minOccurs="0"/>
            <xsd:sequence>
              <xsd:element name="map-key-join-column"
                           type="orm:map-key-join-column"
                           minOccurs="0" maxOccurs="unbounded"/>
              <xsd:element name="map-key-foreign-key" 
                           type="orm:foreign-key" 
                           minOccurs="0"/>
            </xsd:sequence>
          </xsd:choice>
        </xsd:sequence>
      </xsd:choice>
      <xsd:choice>
        <xsd:element name="join-table" type="orm:join-table"
                     minOccurs="0"/>
        <xsd:sequence>
          <xsd:element name="join-column" type="orm:join-column"
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="foreign-key" type="orm:foreign-key" 
                       minOccurs="0"/>
        </xsd:sequence>
      </xsd:choice>
      <xsd:element name="cascade" type="orm:cascade-type"
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="target-entity" type="xsd:string"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="mapped-by" type="xsd:string"/>
    <xsd:attribute name="orphan-removal" type="xsd:boolean"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="one-to-one">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface OneToOne {
          Class targetEntity() default void.class;
          CascadeType[] cascade() default {};
          FetchType fetch() default EAGER;
          boolean optional() default true;
          String mappedBy() default "";
          boolean orphanRemoval() default false;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:choice>
        <xsd:sequence>
          <xsd:element name="primary-key-join-column" 
                       type="orm:primary-key-join-column" 
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="primary-key-foreign-key" 
                       type="orm:foreign-key" 
                       minOccurs="0"/>
        </xsd:sequence>
        <xsd:sequence>
          <xsd:element name="join-column" type="orm:join-column" 
                       minOccurs="0" maxOccurs="unbounded"/>
          <xsd:element name="foreign-key" type="orm:foreign-key" 
                       minOccurs="0"/>
        </xsd:sequence>
        <xsd:element name="join-table" type="orm:join-table" 
                     minOccurs="0"/>
      </xsd:choice>
      <xsd:element name="cascade" type="orm:cascade-type" 
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="target-entity" type="xsd:string"/>
    <xsd:attribute name="fetch" type="orm:fetch-type"/>
    <xsd:attribute name="optional" type="xsd:boolean"/>
    <xsd:attribute name="access" type="orm:access-type"/>
    <xsd:attribute name="mapped-by" type="xsd:string"/>
    <xsd:attribute name="orphan-removal" type="xsd:boolean"/>
    <xsd:attribute name="maps-id" type="xsd:string"/>
    <xsd:attribute name="id" type="xsd:boolean"/>
</xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="order-by">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface OrderBy {
          String value() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:string"/>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="order-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface OrderColumn {
          String name() default "";
          boolean nullable() default true;
          boolean insertable() default true;
          boolean updatable() default true;
          String columnDefinition() default "";
         }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="nullable" type="xsd:boolean"/>
    <xsd:attribute name="insertable" type="xsd:boolean"/>
    <xsd:attribute name="updatable" type="xsd:boolean"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="parameter-mode">
    <xsd:annotation>
      <xsd:documentation>

        public enum ParameterMode { IN, INOUT, OUT, REF_CURSOR};

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="IN"/>
      <xsd:enumeration value="INOUT"/>
      <xsd:enumeration value="OUT"/>
      <xsd:enumeration value="REF_CURSOR"/>
    </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="post-load">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PostLoad {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="post-persist">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PostPersist {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="post-remove">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PostRemove {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="post-update">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PostUpdate {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="pre-persist">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PrePersist {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="pre-remove">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PreRemove {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="pre-update">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD}) @Retention(RUNTIME)
        public @interface PreUpdate {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="method-name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="primary-key-join-column">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface PrimaryKeyJoinColumn {
          String name() default "";
          String referencedColumnName() default "";
          String columnDefinition() default "";
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="referenced-column-name" type="xsd:string"/>
    <xsd:attribute name="column-definition" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="query-hint">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME) 
        public @interface QueryHint {
          String name();
          String value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="value" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="secondary-table">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface SecondaryTable {
          String name();
          String catalog() default "";
          String schema() default "";
          PrimaryKeyJoinColumn[] pkJoinColumns() default {};
          UniqueConstraint[] uniqueConstraints() default {};
          Index[] indexes() default {};
         }

       </xsd:documentation>
     </xsd:annotation>
     <xsd:sequence>
       <xsd:sequence>
         <xsd:element name="primary-key-join-column" 
                      type="orm:primary-key-join-column" 
                      minOccurs="0" maxOccurs="unbounded"/>
         <xsd:element name="primary-key-foreign-key" 
                      type="orm:foreign-key" 
                      minOccurs="0"/>
       </xsd:sequence>
       <xsd:element name="unique-constraint" type="orm:unique-constraint" 
                    minOccurs="0" maxOccurs="unbounded"/>
       <xsd:element name="index" type="orm:index" 
                    minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="sequence-generator">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface SequenceGenerator {
          String name();
          String sequenceName() default "";
          String catalog() default "";
          String schema() default "";
          int initialValue() default 1;
          int allocationSize() default 50;
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="sequence-name" type="xsd:string"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
    <xsd:attribute name="initial-value" type="xsd:int"/>
    <xsd:attribute name="allocation-size" type="xsd:int"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="sql-result-set-mapping">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface SqlResultSetMapping {
          String name();
          EntityResult[] entities() default {};
          ConstructorResult[] classes() default{};
          ColumnResult[] columns() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="entity-result" type="orm:entity-result" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="constructor-result" type="orm:constructor-result" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="column-result" type="orm:column-result" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="stored-procedure-parameter">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface StoredProcedureParameter {
          String name() default "";
          ParameterMode mode() default ParameterMode.IN;
          Class type();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" 
                   minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="class" type="xsd:string" use="required"/>
    <xsd:attribute name="mode" type="orm:parameter-mode"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="table">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE}) @Retention(RUNTIME)
        public @interface Table {
          String name() default "";
          String catalog() default "";
          String schema() default "";
          UniqueConstraint[] uniqueConstraints() default {};
          Index[] indexes() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="unique-constraint" type="orm:unique-constraint" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="index" type="orm:index" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="table-generator">
    <xsd:annotation>
      <xsd:documentation>

        @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
        public @interface TableGenerator {
          String name();
          String table() default "";
          String catalog() default "";
          String schema() default "";
          String pkColumnName() default "";
          String valueColumnName() default "";
          String pkColumnValue() default "";
          int initialValue() default 0;
          int allocationSize() default 50;
          UniqueConstraint[] uniqueConstraints() default {};
          Indexes[] indexes() default {};
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
      <xsd:element name="unique-constraint" type="orm:unique-constraint" 
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="index" type="orm:index" 
                   minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="table" type="xsd:string"/>
    <xsd:attribute name="catalog" type="xsd:string"/>
    <xsd:attribute name="schema" type="xsd:string"/>
    <xsd:attribute name="pk-column-name" type="xsd:string"/>
    <xsd:attribute name="value-column-name" type="xsd:string"/>
    <xsd:attribute name="pk-column-value" type="xsd:string"/>
    <xsd:attribute name="initial-value" type="xsd:int"/>
    <xsd:attribute name="allocation-size" type="xsd:int"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:simpleType name="temporal">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Temporal {
          TemporalType value();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="orm:temporal-type"/>
  </xsd:simpleType>

  <!-- **************************************************** -->

  <xsd:simpleType name="temporal-type">
    <xsd:annotation>
      <xsd:documentation>

        public enum TemporalType {
          DATE, // java.sql.Date
          TIME, // java.sql.Time
          TIMESTAMP // java.sql.Timestamp
        }

      </xsd:documentation>
    </xsd:annotation>
      <xsd:restriction base="xsd:token">
        <xsd:enumeration value="DATE"/>
        <xsd:enumeration value="TIME"/>
        <xsd:enumeration value="TIMESTAMP"/>
     </xsd:restriction>
  </xsd:simpleType>

<!-- **************************************************** -->

  <xsd:complexType name="transient">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Transient {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="unique-constraint">
    <xsd:annotation>
      <xsd:documentation>

        @Target({}) @Retention(RUNTIME)
        public @interface UniqueConstraint {
          String name() default "";
          String[] columnNames();
        }

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="column-name" type="xsd:string" 
                   maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string"/>
  </xsd:complexType>

<!-- **************************************************** -->

  <xsd:complexType name="version">
    <xsd:annotation>
      <xsd:documentation>

        @Target({METHOD, FIELD}) @Retention(RUNTIME)
        public @interface Version {}

      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="column" type="orm:column" minOccurs="0"/>
      <xsd:element name="temporal" type="orm:temporal" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required"/>
    <xsd:attribute name="access" type="orm:access-type"/>
  </xsd:complexType>

</xsd:schema>
