org.apache.openjpa.persistence.query

Class AliasContext

java.lang.Object

org.apache.openjpa.persistence.query.AliasContext

 class AliasContext
extends Object

Constructor Summary

Constructors

Constructor and Description
AliasContext(MetaDataRepository repos)

Method Summary

Methods

Modifier and Type	Method and Description
String	getAlias(ExpressionImpl path) Sets alias for the given Expression or gets the alias if the given path has already been assigned an alias.
String	getEntityName(Class cls)
boolean	hasAlias(Expression path) Affirms if the given Expression has been assigned an alias by this context.
AliasContext	push(Object e)
String	setAlias(ExpressionImpl path)

Methods inherited from class java.lang.Object

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

Constructor Detail

AliasContext

public AliasContext(MetaDataRepository repos)

Method Detail

getAlias

public String getAlias(ExpressionImpl path)

Sets alias for the given Expression or gets the alias if the given path has already been assigned an alias. The given expression must provide a hint on what should be the alias name. If the alias name is assigned by this context, then a different alias is generated.

Parameters:

path -

Returns:

the alias name

setAlias

public String setAlias(ExpressionImpl path)

hasAlias

public boolean hasAlias(Expression path)

Affirms if the given Expression has been assigned an alias by this context.

push

public AliasContext push(Object e)

getEntityName

public String getEntityName(Class cls)