001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU General
007: * Public License Version 2 only ("GPL") or the Common Development and Distribution
008: * License("CDDL") (collectively, the "License"). You may not use this file except in
009: * compliance with the License. You can obtain a copy of the License at
010: * http://www.netbeans.org/cddl-gplv2.html or nbbuild/licenses/CDDL-GPL-2-CP. See the
011: * License for the specific language governing permissions and limitations under the
012: * License. When distributing the software, include this License Header Notice in
013: * each file and include the License file at nbbuild/licenses/CDDL-GPL-2-CP. Sun
014: * designates this particular file as subject to the "Classpath" exception as
015: * provided by Sun in the GPL Version 2 section of the License file that
016: * accompanied this code. If applicable, add the following below the License Header,
017: * with the fields enclosed by brackets [] replaced by your own identifying
018: * information: "Portions Copyrighted [year] [name of copyright owner]"
019: *
020: * Contributor(s):
021: *
022: * The Original Software is NetBeans. The Initial Developer of the Original Software
023: * is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun Microsystems, Inc. All
024: * Rights Reserved.
025: *
026: * If you wish your version of this file to be governed by only the CDDL or only the
027: * GPL Version 2, indicate your decision by adding "[Contributor] elects to include
028: * this software in this distribution under the [CDDL or GPL Version 2] license." If
029: * you do not indicate a single choice of license, a recipient has the option to
030: * distribute your version of this file under either the CDDL, the GPL Version 2 or
031: * to extend the choice of license to its licensees as provided above. However, if
032: * you add GPL Version 2 code and therefore, elected the GPL Version 2 license, then
033: * the option applies only if the new code is made subject to such option by the
034: * copyright holder.
035: */
036:
037: package org.netbeans.installer.utils.helper;
038:
039: import java.util.Map;
040: import java.util.Set;
041: import java.util.Collection;
042: import java.util.HashMap;
043:
044: /**
045: * @noinspection ALL
046: */
047: //todo: not tested yet so use arefully
048: public class MutualHashMap<F, S> implements MutualMap<F, S> {
049:
050: private Map<F, S> map = new HashMap<F, S>();
051: private Map<S, F> reversedMap = new HashMap<S, F>();
052:
053: public int size() {
054: return map.size();
055: }
056:
057: public boolean isEmpty() {
058: return map.isEmpty();
059: }
060:
061: public boolean containsKey(Object key) {
062: return map.containsKey(key);
063: }
064:
065: public boolean containsValue(Object value) {
066: return map.containsValue(value);
067: }
068:
069: public S get(Object key) {
070: return map.get(key);
071: }
072:
073: public F reversedGet(S object) {
074: return reversedMap.get(object);
075: }
076:
077: public S put(F key, S value) {
078: reversedMap.put(value, key);
079: return map.put(key, value);
080: }
081:
082: public S remove(Object key) {
083: final S removed = map.remove(key);
084: reversedMap.remove(removed);
085: return removed;
086: }
087:
088: public F reversedRemove(Object value) {
089: final F removed = reversedMap.remove(value);
090: map.remove(removed);
091: return removed;
092: }
093:
094: public void putAll(Map<? extends F, ? extends S> m) {
095: map.putAll(m);
096: for (Map.Entry<? extends F, ? extends S> entry : m.entrySet()) {
097: reversedMap.put(entry.getValue(), entry.getKey());
098: }
099: }
100:
101: public void clear() {
102: map.clear();
103: reversedMap.clear();
104: }
105:
106: public Set<F> keySet() {
107: return map.keySet();
108: }
109:
110: public Collection<S> values() {
111: return map.values();
112: }
113:
114: public Set<Entry<F, S>> entrySet() {
115: return map.entrySet();
116: }
117:
118: public Set<Entry<S, F>> reversedEntrySet() {
119: return reversedMap.entrySet();
120: }
121: }
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