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.csm.core;
043:
044: import antlr.collections.AST;
045: import java.io.DataInput;
046: import java.io.DataOutput;
047: import java.io.IOException;
048: import org.netbeans.modules.cnd.api.model.CsmFile;
049: import org.netbeans.modules.cnd.api.model.CsmIdentifiable;
050: import org.netbeans.modules.cnd.api.model.CsmOffsetable;
051: import org.netbeans.modules.cnd.api.model.CsmUID;
052: import org.netbeans.modules.cnd.modelimpl.uid.UIDObjectFactory;
053: import org.netbeans.modules.cnd.repository.spi.Persistent;
054: import org.netbeans.modules.cnd.repository.support.SelfPersistent;
055:
056: /**
057: * class to present object that has unique ID and is offsetable
058: * unique ID is used to long-time stored references on Csm Objects
059: *
060: * @see CsmUID
061: * @author Vladimir Voskresensky
062: */
063: public abstract class OffsetableIdentifiableBase<T> extends
064: OffsetableBase implements CsmIdentifiable<T>, Persistent,
065: SelfPersistent {
066:
067: protected OffsetableIdentifiableBase(AST ast, CsmFile file) {
068: super (ast, file);
069: }
070:
071: protected OffsetableIdentifiableBase(CsmFile containingFile,
072: CsmOffsetable pos) {
073: super (containingFile, pos);
074: }
075:
076: protected abstract CsmUID createUID();
077:
078: public CsmUID<T> getUID() {
079: if (uid == null) {
080: uid = createUID();
081: }
082: return uid;
083: }
084:
085: protected void cleanUID() {
086: // this.uid = null;
087: }
088:
089: private CsmUID uid = null;
090:
091: ////////////////////////////////////////////////////////////////////////////
092: // impl of SelfPersistent
093:
094: @Override
095: public void write(DataOutput output) throws IOException {
096: super .write(output);
097: }
098:
099: protected OffsetableIdentifiableBase(DataInput input)
100: throws IOException {
101: super (input);
102: }
103:
104: protected final void writeUID(DataOutput output) throws IOException {
105: UIDObjectFactory factory = UIDObjectFactory.getDefaultFactory();
106: factory.writeUID(uid, output);
107: }
108:
109: protected final void readUID(DataInput input) throws IOException {
110: UIDObjectFactory factory = UIDObjectFactory.getDefaultFactory();
111: this.uid = factory.readUID(input);
112: }
113: }
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