org.apache.openjpa.persistence

Class TupleFactory

java.lang.Object

org.apache.openjpa.persistence.TupleFactory

All Implemented Interfaces:

ObjectFactory<javax.persistence.Tuple>

public class TupleFactory
extends java.lang.Object
implements ObjectFactory<javax.persistence.Tuple>

A factory for tuples such that all instances created by a factory instance share the same TupleElements to save memory consumption.
All Tuple instances created by this factory access the TupleElememts contained in this factory.

Since:

2.0.0

Author:

Pinaki Poddar

Constructor Summary

Constructors

Constructor and Description
TupleFactory(java.util.List<javax.persistence.TupleElement<?>> elems) A factory of Tuple that shares the given TupleElements.
TupleFactory(javax.persistence.criteria.Selection<?>... elems)
TupleFactory(javax.persistence.TupleElement<?>... elems)

Method Summary

Methods

Modifier and Type	Method and Description
java.util.List<javax.persistence.TupleElement<?>>	getElements()
int	getIndex(java.lang.String alias)
int	getIndex(javax.persistence.TupleElement<?> e)
TupleImpl	newInstance()

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleFactory

public TupleFactory(java.util.List<javax.persistence.TupleElement<?>> elems)

A factory of Tuple that shares the given TupleElements.

TupleFactory

public TupleFactory(javax.persistence.TupleElement<?>... elems)

TupleFactory

public TupleFactory(javax.persistence.criteria.Selection<?>... elems)

Method Detail

getElements

public java.util.List<javax.persistence.TupleElement<?>> getElements()

newInstance

public TupleImpl newInstance()

Specified by:

newInstance in interface ObjectFactory<javax.persistence.Tuple>

getIndex

public int getIndex(javax.persistence.TupleElement<?> e)

getIndex

public int getIndex(java.lang.String alias)