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/*
* Copyright (C) 2007 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import java.util.ListIterator;
/**
* A list iterator which forwards all its method calls to another list
* iterator. Subclasses should override one or more methods to modify the
* behavior of the backing iterator as desired per the <a
* href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
*
* @author Mike Bostock
* @since 2.0 (imported from Google Collections Library)
*/
@GwtCompatible
public abstract class ForwardingListIterator<E> extends ForwardingIterator<E>
implements ListIterator<E> {
/** Constructor for use by subclasses. */
protected ForwardingListIterator() {}
@Override protected abstract ListIterator<E> delegate();
@Override
public void add(E element) {
delegate().add(element);
}
@Override
public boolean hasPrevious() {
return delegate().hasPrevious();
}
@Override
public int nextIndex() {
return delegate().nextIndex();
}
@Override
public E previous() {
return delegate().previous();
}
@Override
public int previousIndex() {
return delegate().previousIndex();
}
@Override
public void set(E element) {
delegate().set(element);
}
}
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