## Uses of Interface
org.modeshape.jcr.query.model.QueryCommand

- Packages that use QueryCommand
  Package | Description
  --- | ---
  org.modeshape.jcr.query | The Query API provides a mechanism for building and executing queries.
  org.modeshape.jcr.query.engine | This package contains several fully-functional query engine implementations.
  org.modeshape.jcr.query.model | The Abstract Query Model is a vocabulary that can be used to construct a language-neutral representation of a query.
  org.modeshape.jcr.query.parse | This package defines the `QueryParser` interface, which defines a component that can parse a query represented in a specific language and produce the corresponding `abstract query model` representation.
  org.modeshape.jcr.query.plan | This package defines the `Planner` interface, the `CanonicalPlanner` implementation, and the `PlanNode` class that is used to represent a canonical query plan.
  org.modeshape.jcr.query.validate | This package provides the interfaces that define the tables and columns that can be queried.
  org.modeshape.jcr.query.xpath | The components used to parse JCR XPath queries and translate them into equivalent JCR-SQL2 queries.

- - ### Uses of QueryCommand in org.modeshape.jcr.query

    Fields in org.modeshape.jcr.query declared as QueryCommand
    Modifier and Type | Field and Description
    --- | ---
    `protected QueryCommand` | QueryBuilder.`firstQuery`

    Methods in org.modeshape.jcr.query that return QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `QueryCommand` | JcrQuery.`getAbstractQueryModel()` Get the underlying and immutable Abstract Query Model representation of this query.
    `QueryCommand` | QueryBuilder.`query()` Return a `QueryCommand` representing the currently-built query.
    `protected QueryCommand` | JcrQuery.`query()`

    Methods in org.modeshape.jcr.query with parameters of type QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `CancellableQuery` | JcrQueryContext.`createExecutableQuery(QueryCommand query, PlanHints hints, Map<String,Object> variables)` Create a query object that can be `executed` and optionally `cancelled`.
    `QueryResults` | QueryEngine.`execute(QueryContext context, QueryCommand query)` Execute the supplied query by planning, optimizing, and then processing it.
    `QueryBuilder.ConstraintBuilder` | QueryBuilder.ComparisonBuilder.`is(Operator operator, QueryCommand subquery)` Define the right-hand-side of the constraint using the supplied operator.
    `QueryBuilder.ConstraintBuilder` | QueryBuilder.ComparisonBuilder.`isInSubquery(QueryCommand subquery)`
    `QueryBuilder.ConstraintBuilder` | QueryBuilder.RightHandSide.`literal(QueryCommand subquery)` Define the right-hand side of a comparison.
    `QueryBuilder.ConstraintBuilder` | QueryBuilder.UpperBoundary.`subquery(QueryCommand subquery)` Define the upper boundary value of a range.
    `QueryBuilder.AndBuilder<QueryBuilder.UpperBoundary>` | QueryBuilder.LowerBoundary.`subquery(QueryCommand subquery)` Define the lower boundary value of a range.

    Constructors in org.modeshape.jcr.query with parameters of type QueryCommand
    Constructor and Description
    `JcrQuery(JcrQueryContext context, String statement, String language, QueryCommand query, PlanHints hints, Path storedAtPath)` Creates a new JCR `Query` by specifying the query statement itself, the language in which the query is stated, the `QueryCommand` representation and, optionally, the node from which the query was loaded.

  - ### Uses of QueryCommand in org.modeshape.jcr.query.engine

    Methods in org.modeshape.jcr.query.engine with parameters of type QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `protected boolean` | ScanningQueryEngine.`checkUnionCompatible(QueryResults.Columns results1, QueryResults.Columns results2, org.modeshape.jcr.query.engine.ScanningQueryEngine.ScanQueryContext context, QueryCommand query)` Determine whether this column and the other are union-compatible (that is, having the same columns).
    `protected NodeSequence` | ScanningQueryEngine.`createNodeSequence(QueryCommand originalQuery, org.modeshape.jcr.query.engine.ScanningQueryEngine.ScanQueryContext context, PlanNode plan, QueryResults.Columns columns, QuerySources sources)` Create a node sequence containing the results of the original query as defined by the supplied plan.
    `protected NodeSequence` | ScanningQueryEngine.`createNodeSequenceForSource(QueryCommand originalQuery, QueryContext context, PlanNode sourceNode, IndexPlan index, QueryResults.Columns columns, QuerySources sources)` Create a node sequence for the given index
    `protected NodeSequence` | IndexQueryEngine.`createNodeSequenceForSource(QueryCommand originalQuery, QueryContext context, PlanNode sourceNode, IndexPlan indexPlan, QueryResults.Columns columns, QuerySources sources)`
    `protected NodeSequence` | ScanningQueryEngine.`createNodeSequenceForSource(QueryCommand originalQuery, QueryContext context, PlanNode sourceNode, QueryResults.Columns columns, QuerySources sources)` Create a node sequence for the given source.
    `QueryResults` | ScanningQueryEngine.`execute(QueryContext queryContext, QueryCommand query)` Execute the supplied query by planning, optimizing, and then processing it.
    `protected QueryResults` | ScanningQueryEngine.`executeOptimizedQuery(org.modeshape.jcr.query.engine.ScanningQueryEngine.ScanQueryContext context, QueryCommand command, QueryResults.Statistics statistics, PlanNode plan)` Execute the optimized query defined by the supplied `plan node`.

  - ### Uses of QueryCommand in org.modeshape.jcr.query.model

    Methods in org.modeshape.jcr.query.model that return QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `QueryCommand` | SetQueryObjectModel.`getLeft()`
    `QueryCommand` | SetQuery.`getLeft()`
    `QueryCommand` | Subquery.`getQuery()`
    `QueryCommand` | SetQueryObjectModel.`getRight()`
    `QueryCommand` | SetQuery.`getRight()`
    `QueryCommand` | QueryCommand.`withLimit(int rowLimit)` Create a copy of this query, but one that uses the supplied limit on the number of result rows.
    `QueryCommand` | QueryCommand.`withOffset(int offset)` Create a copy of this query, but one that uses the supplied offset.

    Constructors in org.modeshape.jcr.query.model with parameters of type QueryCommand
    Constructor and Description
    `SetQuery(QueryCommand left, SetQuery.Operation operation, QueryCommand right, boolean all)` Create a set query involving the supplied left- and right-hand-side queries.
    `SetQuery(QueryCommand left, SetQuery.Operation operation, QueryCommand right, boolean all, List<? extends Ordering> orderings, Limit limit)` Create a set query involving the supplied left- and right-hand-side queries.
    `Subquery(QueryCommand query)` Create a new subquery component that uses the supplied query as the subquery expression.

  - ### Uses of QueryCommand in org.modeshape.jcr.query.parse

    Methods in org.modeshape.jcr.query.parse that return QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `QueryCommand` | QueryParsers.`parse(TypeSystem typeSystem, String language, String query)` Execute the supplied query by planning, optimizing, and then processing it.
    `QueryCommand` | QueryParser.`parseQuery(String query, TypeSystem typeSystem)` Parse the supplied query from a string representation into a `QueryCommand`.
    `QueryCommand` | FullTextSearchParser.`parseQuery(String query, TypeSystem typeSystem)`
    `QueryCommand` | BasicSqlQueryParser.`parseQuery(String query, TypeSystem typeSystem)`
    `protected QueryCommand` | BasicSqlQueryParser.`parseQueryCommand(TokenStream tokens, TypeSystem typeSystem)`

    Methods in org.modeshape.jcr.query.parse with parameters of type QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `protected SetQuery` | BasicSqlQueryParser.`parseSetQuery(TokenStream tokens, QueryCommand leftHandSide, TypeSystem typeSystem)`
    `protected SetQuery` | BasicSqlQueryParser.`setQuery(QueryCommand leftQuery, SetQuery.Operation operation, QueryCommand rightQuery, boolean all)`
    `protected Subquery` | BasicSqlQueryParser.`subquery(QueryCommand queryCommand)`

  - ### Uses of QueryCommand in org.modeshape.jcr.query.plan

    Methods in org.modeshape.jcr.query.plan with parameters of type QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `PlanNode` | Planner.`createPlan(QueryContext context, QueryCommand query)` Create a canonical query plan for the given command.
    `PlanNode` | CanonicalPlanner.`createPlan(QueryContext context, QueryCommand query)`
    `protected void` | CanonicalPlanner.`validate(QueryContext context, QueryCommand query, Map<SelectorName,Schemata.Table> usedSelectors)` Validate the supplied query.

  - ### Uses of QueryCommand in org.modeshape.jcr.query.validate

    Methods in org.modeshape.jcr.query.validate that return QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `QueryCommand` | Schemata.View.`getDefinition()` Get the `query` that is the definition of the view.

    Methods in org.modeshape.jcr.query.validate with parameters of type QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `ImmutableSchemata.Builder` | ImmutableSchemata.Builder.`addView(String name, QueryCommand definition)` Add a view with the supplied name and definition.

  - ### Uses of QueryCommand in org.modeshape.jcr.query.xpath

    Methods in org.modeshape.jcr.query.xpath that return QueryCommand
    Modifier and Type | Method and Description
    --- | ---
    `QueryCommand` | XPathToQueryTranslator.`createQuery(XPath.Component xpath)`
    `QueryCommand` | XPathQueryParser.`parseQuery(String query, TypeSystem typeSystem)`

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