diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/EmptyIterable.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/EmptyIterable.java | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/EmptyIterable.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/EmptyIterable.java deleted file mode 100644 index c3ed1c49dc..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/EmptyIterable.java +++ /dev/null @@ -1,65 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008, 2010 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.utility.internal.iterables; - -import java.io.Serializable; -import java.util.Iterator; - -import org.eclipse.jpt.common.utility.internal.iterators.EmptyIterator; - -/** - * An <code>EmptyIterable</code> is just that. - * Maybe just a touch better-performing than {@link java.util.Collections#EMPTY_SET} - * since we don't create a new {@link Iterator} every time {@link #iterator()} is called. - * (Not sure why they do that....) - * - * @param <E> the type of elements returned by the iterable's iterator - * - * @see EmptyIterator - * @see EmptyListIterable - */ -public final class EmptyIterable<E> - implements Iterable<E>, Serializable -{ - // singleton - @SuppressWarnings("rawtypes") - private static final Iterable INSTANCE = new EmptyIterable(); - - /** - * Return the singleton. - */ - @SuppressWarnings("unchecked") - public static <T> Iterable<T> instance() { - return INSTANCE; - } - - /** - * Ensure single instance. - */ - private EmptyIterable() { - super(); - } - - public Iterator<E> iterator() { - return EmptyIterator.instance(); - } - - @Override - public String toString() { - return this.getClass().getSimpleName(); - } - - private static final long serialVersionUID = 1L; - private Object readResolve() { - // replace this object with the singleton - return INSTANCE; - } - -} |