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

Class AttributeNode

java.lang.Object

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

org.eclipse.persistence.internal.jpa.parsing.AttributeNode

public class AttributeNode
extends Node

INTERNAL

Purpose: Represent a attribute.

Responsibilities:

Field Summary

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

alias, left, right, shouldGenerateExpression

Constructor Summary

Constructors

Constructor	Description
AttributeNode()	Create a new AttributeNode
AttributeNode(String name)	Create a new AttributeNode with the passed name

Method Summary

Modifier and Type	Method	Description
Expression	addToExpression(Expression parentExpression, GenerationContext context)	INTERNAL Add my expression semantics to the parentExpression.
Expression	appendCast(Expression exp, GenerationContext context)
void	checkForQueryKey(Object ownerType, TypeHelper typeHelper)
Object	computeActualType(Object initialType, TypeHelper typeHelper)
String	getAsString()	INTERNAL Get the string representation of this node.
String	getAttributeName()
String	getCastClassName()
DatabaseMapping	getMapping()
boolean	isAttributeNode()	INTERNAL Is this node an AttributeNode
boolean	isCollectionAttribute()
boolean	isOuterJoin()
Node	qualifyAttributeAccess(ParseTreeContext context)	INTERNAL If called this AttributeNode represents an unqualified field access.
boolean	requiresCollectionAttribute()
Class	resolveClass(GenerationContext context, Class ownerClass)	resolveClass: Answer the class for the mapping associated with the my variableName in the ownerClass.
DatabaseMapping	resolveMapping(GenerationContext context, Class ownerClass)	resolveMapping: Answer the mapping which corresponds to my variableName.
void	setAttributeName(String name)
void	setCastClassName(String castClassName)
void	setMapping(DatabaseMapping mapping)
void	setOuterJoin(boolean outerJoin)
void	setRequiresCollectionAttribute(boolean requiresCollectionAttribute)
String	toString(int indent)
void	validate(ParseTreeContext context)	INTERNAL Validate the current node and calculates its type.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeNode

public AttributeNode()

Create a new AttributeNode

AttributeNode

public AttributeNode(String name)

Create a new AttributeNode with the passed name

Parameters:

name - the attribute name

Method Detail

qualifyAttributeAccess

public Node qualifyAttributeAccess(ParseTreeContext context)

INTERNAL If called this AttributeNode represents an unqualified field access. The method returns a DotNode representing a qualified field access with the base variable as left child node and the attribute as right child node.

Overrides:

qualifyAttributeAccess in class Node

validate

public void validate(ParseTreeContext context)

INTERNAL Validate the current node and calculates its type.

Overrides:

validate in class Node

appendCast

public Expression appendCast(Expression exp,
                             GenerationContext context)

computeActualType

public Object computeActualType(Object initialType,
                                TypeHelper typeHelper)

checkForQueryKey

public void checkForQueryKey(Object ownerType,
                             TypeHelper typeHelper)

addToExpression

public Expression addToExpression(Expression parentExpression,
                                  GenerationContext context)

Description copied from class: Node

INTERNAL Add my expression semantics to the parentExpression. Each subclass will add a different expression and thus will need to override this method

Overrides:

addToExpression in class Node

isAttributeNode

public boolean isAttributeNode()

INTERNAL Is this node an AttributeNode

Overrides:

isAttributeNode in class Node

getAttributeName

public String getAttributeName()

setAttributeName

public void setAttributeName(String name)

getCastClassName

public String getCastClassName()

setCastClassName

public void setCastClassName(String castClassName)

isOuterJoin

public boolean isOuterJoin()

setOuterJoin

public void setOuterJoin(boolean outerJoin)

requiresCollectionAttribute

public boolean requiresCollectionAttribute()

setRequiresCollectionAttribute

public void setRequiresCollectionAttribute(boolean requiresCollectionAttribute)

getMapping

public DatabaseMapping getMapping()

setMapping

public void setMapping(DatabaseMapping mapping)

isCollectionAttribute

public boolean isCollectionAttribute()

resolveMapping

public DatabaseMapping resolveMapping(GenerationContext context,
                                      Class ownerClass)

resolveMapping: Answer the mapping which corresponds to my variableName.

Overrides:

resolveMapping in class Node

resolveClass

public Class resolveClass(GenerationContext context,
                          Class ownerClass)

resolveClass: Answer the class for the mapping associated with the my variableName in the ownerClass. Answer null if the node represents a mapping that doesn't exist

Overrides:

resolveClass in class Node

toString

public String toString(int indent)

Overrides:

toString in class Node

getAsString

public String getAsString()

INTERNAL Get the string representation of this node.

Overrides:

getAsString in class Node