com.groupbyinc.common.apache.commons.collections4.bag.AbstractSortedBagDecorator Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.collections4.bag;
import java.util.Comparator;
import org.apache.commons.collections4.SortedBag;
/**
* Decorates another SortedBag
to provide additional behaviour.
*
* Methods are forwarded directly to the decorated bag.
*
* @since 3.0
* @version $Id: AbstractSortedBagDecorator.java 1686855 2015-06-22 13:00:27Z tn $
*/
public abstract class AbstractSortedBagDecorator
extends AbstractBagDecorator implements SortedBag {
/** Serialization version */
private static final long serialVersionUID = -8223473624050467718L;
/**
* Constructor only used in deserialization, do not use otherwise.
* @since 3.1
*/
protected AbstractSortedBagDecorator() {
super();
}
/**
* Constructor that wraps (not copies).
*
* @param bag the bag to decorate, must not be null
* @throws NullPointerException if bag is null
*/
protected AbstractSortedBagDecorator(final SortedBag bag) {
super(bag);
}
/**
* Gets the bag being decorated.
*
* @return the decorated bag
*/
@Override
protected SortedBag decorated() {
return (SortedBag) super.decorated();
}
//-----------------------------------------------------------------------
@Override
public E first() {
return decorated().first();
}
@Override
public E last() {
return decorated().last();
}
@Override
public Comparator comparator() {
return decorated().comparator();
}
}