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Commons Beanutils example source code file (

This example Commons Beanutils source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Beanutils tags/keywords

abstractkeyvalue, abstractkeyvalue, keyvalue, keyvalue, object, object, string, stringbuffer, stringbuffer

The Commons Beanutils source code

 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.collections.keyvalue;

import org.apache.commons.collections.KeyValue;

 * Abstract pair class to assist with creating KeyValue and MapEntry implementations.
 * @since Commons Collections 3.0
 * @version $Revision: 438363 $ $Date: 2006-08-30 05:48:00 +0100 (Wed, 30 Aug 2006) $
 * @author James Strachan
 * @author Michael A. Smith
 * @author Neil O'Toole
 * @author Stephen Colebourne
public abstract class AbstractKeyValue implements KeyValue {
    /** The key */
    protected Object key;
    /** The value */
    protected Object value;
     * Constructs a new pair 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
    protected AbstractKeyValue(Object key, Object value) {
        this.key = key;
        this.value = value;

     * Gets the key from the pair.
     * @return the key 
    public Object getKey() {
        return key;

     * Gets the value from the pair.
     * @return the value
    public Object getValue() {
        return value;

     * Gets a debugging String view of the pair.
     * @return a String view of the entry
    public String toString() {
        return new StringBuffer()


Other Commons Beanutils examples (source code examples)

Here is a short list of links related to this Commons Beanutils source code file:

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