org.eclipse.persistence.internal.jpa.parsing

Class MapKeyNode

java.lang.Object

org.eclipse.persistence.internal.jpa.parsing.Node

org.eclipse.persistence.internal.jpa.parsing.MapKeyNode

All Implemented Interfaces:

AliasableNode

public class MapKeyNode
extends Node
implements AliasableNode

INTERNAL

Purpose: Represent an KEY in EJBQL

Responsibilities:

• Generate the correct expression for an KEY in EJBQL

Since:

EclipseLink 1.2

Author:

tware

Field Summary

Fields inherited from class org.eclipse.persistence.internal.jpa.parsing.Node

shouldGenerateExpression

Constructor Summary

Constructors

Constructor and Description
MapKeyNode()

Method Summary

Modifier and Type	Method and Description
void	applyToQuery(ObjectLevelReadQuery theQuery, GenerationContext generationContext) INTERNAL Apply this node to the passed query
Expression	generateExpression(GenerationContext context) INTERNAL Generate the a new EclipseLink TableEntryExpression for this node.
Node	getLeftMostNode() INTERNAL Return the left most node of a dot expr, so return 'a' for 'a.b.c'.
boolean	isAliasableNode()
boolean	isMapKeyNode() INTERNAL Is this node a MapKey node
void	validate(ParseTreeContext context) INTERNAL Validate node and calculate its type.

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

addToExpression, appendExpression, getAlias, getAsString, getColumn, getLeft, getLine, getRight, getType, hasLeft, hasRight, isAggregateNode, isAttributeNode, isConstructorNode, isCountNode, isDivideNode, isDotNode, isEscape, isLiteralNode, isMinusNode, isMultiplyNode, isNotNode, isParameterNode, isPlusNode, isSubqueryNode, isVariableNode, qualifyAttributeAccess, resolveAttribute, resolveClass, resolveClass, resolveMapping, resolveMapping, setAlias, setColumn, setLeft, setLine, setRight, setType, toString, toString, toStringDisplayName, toStringIndent, validateParameter

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.persistence.internal.jpa.parsing.AliasableNode

getAlias, setAlias

Constructor Detail

MapKeyNode

public MapKeyNode()

Method Detail

isMapKeyNode

public boolean isMapKeyNode()

INTERNAL Is this node a MapKey node

Overrides:

isMapKeyNode in class Node

applyToQuery

public void applyToQuery(ObjectLevelReadQuery theQuery,
                         GenerationContext generationContext)

INTERNAL Apply this node to the passed query

Overrides:

applyToQuery in class Node

generateExpression

public Expression generateExpression(GenerationContext context)

INTERNAL Generate the a new EclipseLink TableEntryExpression for this node.

Overrides:

generateExpression in class Node

getLeftMostNode

public Node getLeftMostNode()

INTERNAL Return the left most node of a dot expr, so return 'a' for 'a.b.c'.

validate

public void validate(ParseTreeContext context)

Description copied from class: Node

INTERNAL Validate node and calculate its type.

Overrides:

validate in class Node

isAliasableNode

public boolean isAliasableNode()

Overrides:

isAliasableNode in class Node