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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 javax.annotation.Nullable;
import java.util.Set;
/**
* A multiset which forwards all its method calls to another multiset.
* Subclasses should override one or more methods to modify the behavior of the
* backing multiset as desired per the decorator pattern.
*
* @see ForwardingObject
* @author Kevin Bourrillion
*/
@GwtCompatible
public abstract class ForwardingMultiset extends ForwardingCollection
implements Multiset {
@Override protected abstract Multiset delegate();
public int count(Object element) {
return delegate().count(element);
}
public int add(E element, int occurrences) {
return delegate().add(element, occurrences);
}
public int remove(Object element, int occurrences) {
return delegate().remove(element, occurrences);
}
public Set elementSet() {
return delegate().elementSet();
}
public Set> entrySet() {
return delegate().entrySet();
}
@Override public boolean equals(@Nullable Object object) {
return object == this || delegate().equals(object);
}
@Override public int hashCode() {
return delegate().hashCode();
}
public int setCount(E element, int count) {
return delegate().setCount(element, count);
}
public boolean setCount(E element, int oldCount, int newCount) {
return delegate().setCount(element, oldCount, newCount);
}
}