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 1997-2006 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: package org.netbeans.tax.traversal;
042:
043: import org.netbeans.tax.TreeNode;
044: import org.netbeans.tax.NotSupportedException;
045:
046: /**
047: *
048: * @author Libor Kramolis
049: * @version 0.1
050: */
051: public final class TreeNodeWalker {
052:
053: /** Root node of this iterator. */
054: private TreeNode root;
055:
056: /** Determines which node types are presented. */
057: private int whatToShow;
058:
059: /** Filter to screen nodes. */
060: private TreeNodeFilter filter;
061:
062: /** Current node. */
063: private TreeNode currentNode;
064:
065: //
066: // init
067: //
068:
069: /** Creates new TreeNodeIterator. */
070: public TreeNodeWalker(TreeNode node, int wTS, TreeNodeFilter f) {
071: root = node;
072: whatToShow = wTS;
073: filter = f;
074:
075: currentNode = root;
076: }
077:
078: //
079: // itself
080: //
081:
082: /**
083: */
084: public TreeNode getRoot() {
085: return root;
086: }
087:
088: /**
089: */
090: public int getWhatToShow() {
091: return whatToShow;
092: }
093:
094: /**
095: */
096: public TreeNodeFilter getFilter() {
097: return filter;
098: }
099:
100: /**
101: */
102: public TreeNode getCurrentNode() {
103: return currentNode;
104: }
105:
106: /**
107: */
108: public void setCurrentNode(TreeNode curNode)
109: throws NotSupportedException {
110: if (curNode == null) {
111: throw new NotSupportedException(Util.THIS
112: .getString("EXC_invalid_current_node_value"));
113: }
114:
115: currentNode = curNode;
116: }
117:
118: /**
119: */
120: public TreeNode parentNode() {
121: if (Util.THIS.isLoggable()) /* then */
122: Util.THIS.debug("[PENDING]: TreeNodeWalker.parentNode ()"); // NOI18N
123:
124: return null;
125: }
126:
127: /**
128: */
129: public TreeNode firstChild() {
130: if (Util.THIS.isLoggable()) /* then */
131: Util.THIS.debug("[PENDING]: TreeNodeWalker.firstChild ()"); // NOI18N
132:
133: return null;
134: }
135:
136: /**
137: */
138: public TreeNode lastChild() {
139: if (Util.THIS.isLoggable()) /* then */
140: Util.THIS.debug("[PENDING]: TreeNodeWalker.lastChild ()"); // NOI18N
141:
142: return null;
143: }
144:
145: /**
146: */
147: public TreeNode previousSibling() {
148: if (Util.THIS.isLoggable()) /* then */
149: Util.THIS
150: .debug("[PENDING]: TreeNodeWalker.previousSibling ()"); // NOI18N
151:
152: return null;
153: }
154:
155: /**
156: */
157: public TreeNode nextSibling() {
158: if (Util.THIS.isLoggable()) /* then */
159: Util.THIS.debug("[PENDING]: TreeNodeWalker.nextSibling ()"); // NOI18N
160:
161: return null;
162: }
163:
164: /**
165: */
166: public TreeNode previousNode() {
167: if (Util.THIS.isLoggable()) /* then */
168: Util.THIS
169: .debug("[PENDING]: TreeNodeWalker.previousNode ()"); // NOI18N
170:
171: return null;
172: }
173:
174: /**
175: */
176: public TreeNode nextNode() {
177: if (Util.THIS.isLoggable()) /* then */
178: Util.THIS.debug("[PENDING]: TreeNodeWalker.nextNode ()"); // NOI18N
179:
180: return null;
181: }
182:
183: }
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