oracle.toplink.essentials.mappings.Association Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*/
// Copyright (c) 1998, 2005, Oracle. All rights reserved.
package oracle.toplink.essentials.mappings;
import java.util.*;
/**
* Purpose: Generic association object.
* This can be used to map hashtable/map containers where the key and value primitives or independent objects.
*
* @author James Sutherland
* @since TOPLink/Java 3.0
*/
public class Association implements Map.Entry {
protected Object key;
protected Object value;
/**
* Default constructor.
*/
public Association() {
super();
}
/**
* PUBLIC:
* Create an association.
*/
public Association(Object key, Object value) {
this.key = key;
this.value = value;
}
/**
* PUBLIC:
* Return the key.
*/
public Object getKey() {
return key;
}
/**
* PUBLIC:
* Return the value.
*/
public Object getValue() {
return value;
}
/**
* PUBLIC:
* Set the key.
*/
public void setKey(Object key) {
this.key = key;
}
/**
* PUBLIC:
* Set the value.
*/
public Object setValue(Object value) {
Object oldValue = this.value;
this.value = value;
return oldValue;
}
}