org.apache.commons.collections.keyvalue.DefaultMapEntry 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.collections.keyvalue;
import java.util.Map;
import org.apache.commons.collections.KeyValue;
/**
* A restricted implementation of {@link java.util.Map.Entry} that prevents
* the Map.Entry contract from being broken.
*
* @since Commons Collections 3.0
* @version $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
*
* @author James Strachan
* @author Michael A. Smith
* @author Neil O'Toole
* @author Stephen Colebourne
*/
public final class DefaultMapEntry extends AbstractMapEntry {
/**
* Constructs a new entry with the specified key and given value.
*
* @param key the key for the entry, may be null
* @param value the value for the entry, may be null
*/
public DefaultMapEntry(final Object key, final Object value) {
super(key, value);
}
/**
* Constructs a new entry from the specified KeyValue.
*
* @param pair the pair to copy, must not be null
* @throws NullPointerException if the entry is null
*/
public DefaultMapEntry(final KeyValue pair) {
super(pair.getKey(), pair.getValue());
}
/**
* Constructs a new entry from the specified Map.Entry.
*
* @param entry the entry to copy, must not be null
* @throws NullPointerException if the entry is null
*/
public DefaultMapEntry(final Map.Entry entry) {
super(entry.getKey(), entry.getValue());
}
}