org.jibx.binding.def

Class ObjectStringConversion

java.lang.Object

org.jibx.binding.def.StringConversion

org.jibx.binding.def.ObjectStringConversion

public class ObjectStringConversion
extends StringConversion

Object string conversion handling. Defines serialization handling for converting objects to and from a String value. The default is to just use the object toString() method for serialization and a constructor from a String value for deserialization. java.lang.String itself is a special case, with no added code used by default for either serializing or deserializing. java.lang.Object is also a special case, with no added code used by default for deserializing (the String value is used directly). Other classes must either implement toString() and a constructor from String, or use custom serializers and/or deserializers.

Author:

Dennis M. Sosnoski

Field Summary

Fields inherited from class org.jibx.binding.def.StringConversion

COMPARE_OBJECTS_METHOD, COMPARE_OBJECTS_SIGNATURE, DESERIALIZER_SIGNATURES, m_converter, m_default, m_deserializer, m_serializer, m_typeName, m_typeSignature, MARSHAL_ATTRIBUTE, MARSHAL_ELEMENT, MARSHAL_NAME_VALUES, MARSHAL_SIGNATURE, UNMARSHAL_OPT_ATTRIBUTE, UNMARSHAL_OPT_ELEMENT, UNMARSHAL_OPT_SIGNATURE, UNMARSHAL_REQ_ATTRIBUTE, UNMARSHAL_REQ_ELEMENT, UNMARSHAL_REQ_SIGNATURE, WHITESPACE_CONVERT_SIGNATURES

Method Summary

Modifier and Type	Method and Description
protected Object	convertDefault(String text) Convert text representation into default value object.
StringConversion	derive(String type, String ser, String conv, String dser, String dflt) Derive from existing formatting information.
void	genFromText(ContextMethodBuilder mb) Generate code to convert String representation.
void	genParseOptional(boolean attr, ContextMethodBuilder mb) Generate code to parse and convert optional attribute or element.
void	genParseRequired(boolean attr, ContextMethodBuilder mb) Generate code to parse and convert required attribute or element.
protected BranchWrapper	genToOptionalText(String type, ContextMethodBuilder mb, int extra) Generate code to check if an optional value is not equal to the default.
void	genToText(String type, ContextMethodBuilder mb) Shared code generation for converting instance of type to String.
boolean	isPrimitive() Check if the type handled by this conversion is of a primitive type.

Methods inherited from class org.jibx.binding.def.StringConversion

genPopValues, genWriteOptional, genWriteRequired, genWriteText, getTypeName, setDeserializer, setSerializer, setWhitespaceConverter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

genFromText

public void genFromText(ContextMethodBuilder mb)
                 throws org.jibx.runtime.JiBXException

Generate code to convert String representation. The code generated by this method assumes that the String value has already been pushed on the stack. It consumes this and leaves the converted value on the stack.

Specified by:

genFromText in class StringConversion

Parameters:

mb - method builder

Throws:

org.jibx.runtime.JiBXException - Error if no de-serializer

genParseOptional

public void genParseOptional(boolean attr,
                             ContextMethodBuilder mb)
                      throws org.jibx.runtime.JiBXException

Generate code to parse and convert optional attribute or element. The code generated by this method assumes that the unmarshalling context and name information for the attribute or element have already been pushed on the stack. It consumes these and leaves the converted value (or converted default value, if the item itself is missing) on the stack.

Specified by:

genParseOptional in class StringConversion

Parameters:

attr - item is an attribute (vs element) flag

mb - method builder

Throws:

org.jibx.runtime.JiBXException - if error in configuration

genParseRequired

public void genParseRequired(boolean attr,
                             ContextMethodBuilder mb)
                      throws org.jibx.runtime.JiBXException

Generate code to parse and convert required attribute or element. The code generated by this method assumes that the unmarshalling context and name information for the attribute or element have already been pushed on the stack. It consumes these and leaves the converted value on the stack.

Specified by:

genParseRequired in class StringConversion

Parameters:

attr - item is an attribute (vs element) flag

mb - method builder

Throws:

org.jibx.runtime.JiBXException - if error in configuration

genToText

public void genToText(String type,
                      ContextMethodBuilder mb)
               throws org.jibx.runtime.JiBXException

Shared code generation for converting instance of type to String. This override of the base class method checks for serialization using the toString method and implements that case directly, while calling the base class method for normal handling. The code generated by this method assumes that the reference to the instance to be converted is on the stack. It consumes the reference, replacing it with the corresponding String value.

Overrides:

genToText in class StringConversion

Parameters:

type - fully qualified class name for value on stack

mb - marshal method builder

Throws:

org.jibx.runtime.JiBXException - if error in configuration

genToOptionalText

protected BranchWrapper genToOptionalText(String type,
                                          ContextMethodBuilder mb,
                                          int extra)
                                   throws org.jibx.runtime.JiBXException

Generate code to check if an optional value is not equal to the default. The code generated by this method assumes that the actual value to be converted has already been pushed on the stack. It consumes this, leaving the converted text reference on the stack if it's not equal to the default value.

Specified by:

genToOptionalText in class StringConversion

Parameters:

type - fully qualified class name for value on stack

mb - method builder

extra - count of extra values to be popped from stack if missing

Returns:

handle for branch taken when value is equal to the default (target must be set by caller)

Throws:

org.jibx.runtime.JiBXException - if error in configuration

isPrimitive

public boolean isPrimitive()

Check if the type handled by this conversion is of a primitive type.

Specified by:

isPrimitive in class StringConversion

Returns:

false to indicate object type

convertDefault

protected Object convertDefault(String text)
                         throws org.jibx.runtime.JiBXException

Convert text representation into default value object. For object types this just returns the text value.

Specified by:

convertDefault in class StringConversion

Parameters:

text - value representation to be converted

Returns:

converted default value object

Throws:

org.jibx.runtime.JiBXException - on conversion error

derive

public StringConversion derive(String type,
                               String ser,
                               String conv,
                               String dser,
                               String dflt)
                        throws org.jibx.runtime.JiBXException

Derive from existing formatting information. This allows constructing a new instance from an existing format of the same or an ancestor type, with the properties of the existing format copied to the new instance except where overridden by the supplied values.

Specified by:

derive in class StringConversion

Parameters:

type - fully qualified name of class handled by conversion (null if inherited)

ser - fully qualified name of serialization method (null if inherited)

conv - fully qualified name of whitespace conversion method (null if inherited)

dser - fully qualified name of deserialization method (null if inherited)

dflt - default value text (null if inherited)

Returns:

new instance initialized from existing one

Throws:

org.jibx.runtime.JiBXException - if error in configuration information