Package org.eclipse.persistence.internal.jpa.parsing

Class JPQLParseTree

java.lang.Object

org.eclipse.persistence.internal.jpa.parsing.ParseTree

org.eclipse.persistence.internal.jpa.parsing.JPQLParseTree

public class JPQLParseTree
extends ParseTree

INTERNAL

Purpose: This represents an EJBQL parse tre

Responsibilities:

• Maintain the context for the expression generation
• Build an initial expression
• Return a reference class for the expression
• Maintain the root node for the query

Since:

TopLink 4.0

Author:

Jon Driscoll and Joel Lucuik

Constructor Summary

Constructors

Constructor	Description
JPQLParseTree()	EJBQLParseTree constructor comment.

Method Summary

Modifier and Type	Method	Description
GenerationContext	buildContext(ReadQuery readQuery, AbstractSession session)	INTERNAL Build the context to be used when generating the expression from the parse tree
void	populateQuery(DatabaseQuery query, AbstractSession session)	Add all of the relevant query settings from an EJBQLParseTree to the given database query.
GenerationContext	populateSubquery(ObjectLevelReadQuery readQuery, GenerationContext outer)	Add all of the relevant query settings from an EJBQLParseTree to the given database query.

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.ParseTree

addGroupingToQuery, addHavingToQuery, addNonFetchJoinAttributes, addOrderingToQuery, addParametersToQuery, addUpdatesToQuery, adjustReferenceClassForQuery, applyQueryNodeToQuery, buildContext, buildContextForReadQuery, createDatabaseQuery, generateExpression, getClassLoader, getContext, getDistinctState, getFromNode, getGroupByNode, getHavingNode, getOrderByNode, getQueryNode, getReferenceClass, getSetNode, getWhereNode, hasGroupBy, hasHaving, hasOrderBy, initBaseExpression, initBaseExpression, qualifyAttributeAccess, setClassLoader, setContext, setDistinctState, setFromNode, setGroupByNode, setHavingNode, setOrderByNode, setQueryNode, setSelectionCriteriaForQuery, setSetNode, setWhereNode, toString, usesDistinct, validate, validate, validate, verifySelect

Methods inherited from class java.lang.Object

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

Constructor Detail

JPQLParseTree

public JPQLParseTree()

EJBQLParseTree constructor comment.

Method Detail

buildContext

public GenerationContext buildContext(ReadQuery readQuery,
                                      AbstractSession session)

INTERNAL Build the context to be used when generating the expression from the parse tree

populateSubquery

public GenerationContext populateSubquery(ObjectLevelReadQuery readQuery,
                                          GenerationContext outer)

Add all of the relevant query settings from an EJBQLParseTree to the given database query.

Parameters:

readQuery - The query to populate

outer - the GenerationContext of the outer EJBQL query.

Returns:

the GenerationContext for the subquery

populateQuery

public void populateQuery(DatabaseQuery query,
                          AbstractSession session)

Add all of the relevant query settings from an EJBQLParseTree to the given database query.

Parameters:

query - The query to populate

session - The session to use to information such as descriptors.