| /* |
| * Copyright (c) 1998, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.mappings; |
| |
| import java.util.*; |
| |
| /** |
| * <p><b>Purpose</b>: 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. |
| */ |
| @Override |
| public Object getKey() { |
| return key; |
| } |
| |
| /** |
| * PUBLIC: |
| * Return the value. |
| */ |
| @Override |
| public Object getValue() { |
| return value; |
| } |
| |
| /** |
| * PUBLIC: |
| * Set the key. |
| */ |
| public void setKey(Object key) { |
| this.key = key; |
| } |
| |
| /** |
| * PUBLIC: |
| * Set the value. |
| */ |
| @Override |
| public Object setValue(Object value) { |
| Object oldValue = this.value; |
| this.value = value; |
| return oldValue; |
| } |
| } |