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/*
* Copyright (C) 2007 Google Inc.
*
* 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 org.elasticsearch.util.collect;
import org.elasticsearch.util.annotations.GwtCompatible;
import java.util.Collection;
import java.util.Iterator;
/**
* A collection which forwards all its method calls to another collection.
* Subclasses should override one or more methods to modify the behavior of
* the backing collection as desired per the decorator pattern.
*
* @see ForwardingObject
* @author Kevin Bourrillion
*/
@GwtCompatible
public abstract class ForwardingCollection extends ForwardingObject
implements Collection {
@Override protected abstract Collection delegate();
public Iterator iterator() {
return delegate().iterator();
}
public int size() {
return delegate().size();
}
public boolean removeAll(Collection collection) {
return delegate().removeAll(collection);
}
public boolean isEmpty() {
return delegate().isEmpty();
}
public boolean contains(Object object) {
return delegate().contains(object);
}
public Object[] toArray() {
return delegate().toArray();
}
public T[] toArray(T[] array) {
return delegate().toArray(array);
}
public boolean add(E element) {
return delegate().add(element);
}
public boolean remove(Object object) {
return delegate().remove(object);
}
public boolean containsAll(Collection collection) {
return delegate().containsAll(collection);
}
public boolean addAll(Collection collection) {
return delegate().addAll(collection);
}
public boolean retainAll(Collection collection) {
return delegate().retainAll(collection);
}
public void clear() {
delegate().clear();
}
}