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Java > Open Source Codes > org > jboss > system > metadata > AbstractMetaDataVisitorNode


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.system.metadata;
23
24 import java.util.Iterator JavaDoc;
25 import java.util.Set JavaDoc;
26
27 import org.jboss.util.collection.CollectionsFactory;
28
29 /**
30  * AbstractMetaDataVisitorNode.
31  *
32  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
33  * @version $Revision: 1.1 $
34  */
35 public class AbstractMetaDataVisitorNode implements ServiceMetaDataVisitorNode
36 {
37    public Iterator JavaDoc<? extends ServiceMetaDataVisitorNode> getChildren()
38    {
39       Set JavaDoc<ServiceMetaDataVisitorNode> children = CollectionsFactory.createLazySet();
40       addChildren(children);
41       if (children.size() == 0)
42          return null;
43       else
44          return children.iterator();
45    }
46
47    public void visit(ServiceMetaDataVisitor visitor)
48    {
49       visitor.visit(this);
50    }
51
52    /**
53     * Add to the children
54     *
55     * @param children the children
56     */
57    protected void addChildren(Set JavaDoc<ServiceMetaDataVisitorNode> children)
58    {
59    }
60 }
61
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