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
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.cnd.modelimpl.uid;
043:
044: import java.io.DataInput;
045: import java.io.DataOutput;
046: import java.io.IOException;
047: import org.netbeans.modules.cnd.api.model.CsmIdentifiable;
048: import org.netbeans.modules.cnd.api.model.CsmUID;
049: import org.netbeans.modules.cnd.modelimpl.repository.KeyHolder;
050: import org.netbeans.modules.cnd.modelimpl.repository.KeyObjectFactory;
051: import org.netbeans.modules.cnd.modelimpl.repository.RepositoryUtils;
052: import org.netbeans.modules.cnd.repository.spi.Key;
053: import org.netbeans.modules.cnd.repository.support.SelfPersistent;
054:
055: /**
056: * help class for CsmUID based on repository Key
057: * @author Vladimir Voskresensky
058: */
059: public abstract class KeyBasedUID<T extends CsmIdentifiable> implements
060: CsmUID<T>, KeyHolder, SelfPersistent, Comparable {
061: private final Key key;
062:
063: protected KeyBasedUID(Key key) {
064: assert key != null;
065: this .key = key;
066: }
067:
068: public T getObject() {
069: return (T) RepositoryUtils.get(this );
070: }
071:
072: public Key getKey() {
073: return key;
074: }
075:
076: public String toString() {
077: String retValue;
078:
079: retValue = key.toString();
080: return "KeyBasedUID on " + retValue; // NOI18N
081: }
082:
083: public int hashCode() {
084: int retValue;
085:
086: retValue = key.hashCode();
087: return retValue;
088: }
089:
090: public boolean equals(Object obj) {
091: if (this == obj) {
092: return true;
093: }
094: if (obj == null || obj.getClass() != this .getClass()) {
095: return false;
096: }
097: KeyBasedUID other = (KeyBasedUID) obj;
098: return this .key.equals(other.key);
099: }
100:
101: public void write(DataOutput aStream) throws IOException {
102: KeyObjectFactory.getDefaultFactory().writeKey(key, aStream);
103: }
104:
105: /* package */KeyBasedUID(DataInput aStream) throws IOException {
106: key = KeyObjectFactory.getDefaultFactory().readKey(aStream);
107: }
108:
109: public int compareTo(Object o) {
110: assert o != null;
111: assert o instanceof KeyBasedUID;
112: Comparable o1 = (Comparable) this .key;
113: Comparable o2 = (Comparable) ((KeyBasedUID) o).key;
114: return o1.compareTo(o2);
115: }
116: }
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