org.eclipse.persistence.jpa.jpql.util.iterable
Class EmptyListIterable<E>

java.lang.Object
  org.eclipse.persistence.jpa.jpql.util.iterable.EmptyListIterable<E>

Type Parameters:

E - the type of elements returned by the list iterable's list iterator

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<E>, ListIterable<E>

public final class EmptyListIterable<E>
extends java.lang.Object
implements ListIterable<E>, java.io.Serializable

An EmptyListIterable is just that. Maybe just a touch better-performing than Collections.EMPTY_LIST since we don't create a new Iterator every time iterator() is called. (Not sure why they do that....)

Version:

2.5

See Also:

EmptyListIterator, EmptyIterable, Serialized Form

Since:

2.5

Method Summary

static <T> ListIterable<T>	instance() Return the singleton instance of this ListIterable.
java.util.ListIterator<E>	iterator()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static <T> ListIterable<T> instance()

Return the singleton instance of this ListIterable.

Returns:

The singleton instance

iterator

public java.util.ListIterator<E> iterator()

Specified by:

iterator in interface java.lang.Iterable<E>

Specified by:

iterator in interface ListIterable<E>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object