org.jikesrvm.util

Class EmptyEnumeration<E>

java.lang.Object

org.jikesrvm.util.EmptyEnumeration<E>

Type Parameters:

E - type parameter

All Implemented Interfaces:

Enumeration<E>

public final class EmptyEnumeration<E>
extends Object
implements Enumeration<E>

Implements an empty enumeration.

The Collections class from Java 7 provides an emptyEnumeration() method which will make this class unnecessary once we switch to Java 7.

TODO Remove this class when we require Java 7 for building and from our class libraries.

Field Summary

Fields

Modifier and Type	Field and Description
private static EmptyEnumeration<?>	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	EmptyEnumeration() Non-instantiable.

Method Summary

Modifier and Type	Method and Description
static <T> Enumeration<T>	emptyEnumeration()
boolean	hasMoreElements()
E	nextElement()

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

private static final EmptyEnumeration<?> INSTANCE

Constructor Detail

EmptyEnumeration

private EmptyEnumeration()

Non-instantiable. Use emptyEnumeration() to create instances.

Method Detail

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface Enumeration<E>

nextElement

public E nextElement()

Specified by:

nextElement in interface Enumeration<E>

emptyEnumeration

public static <T> Enumeration<T> emptyEnumeration()