org.eclipse.persistence.jpa.jpql.tools.utility.iterable

Class EmptyIterable<E>

java.lang.Object

org.eclipse.persistence.jpa.jpql.tools.utility.iterable.EmptyIterable<E>

Type Parameters:

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

All Implemented Interfaces:

Serializable, Iterable<E>

public final class EmptyIterable<E>
extends Object
implements Iterable<E>, Serializable

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

Since:

2.5

Version:

2.5

See Also:

EmptyIterator, EmptyListIterable, Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Iterable<T>	instance() Return the singleton instance of this Iterable.
Iterator<E>	iterator()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

instance

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

Return the singleton instance of this Iterable.

Returns:

The singleton instance

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

toString

public String toString()

Overrides:

toString in class Object