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Java > Open Source Codes > org > jboss > ejb > plugins > cmp > ejbql > ASTCount


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, 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.ejb.plugins.cmp.ejbql;
23
24
25 /**
26  * This abstract syntax node represents a count function.
27  *
28  * @author <a HREF="mailto:alex@jboss.org">Alex Loubyansky</a>
29  * @version $Revision: 37459 $
30  */
31 public final class ASTCount
32    extends AggregateFunction
33    implements SelectFunction
34 {
35    public ASTCount(int id)
36    {
37       super(id);
38    }
39
40    protected Class JavaDoc getDefaultResultType()
41    {
42       return Long JavaDoc.class;
43    }
44    
45    /**
46     * Accept the visitor. *
47     */
48    public Object JavaDoc jjtAccept(JBossQLParserVisitor visitor, Object JavaDoc data)
49    {
50       return visitor.visit(this, data);
51    }
52 }
53
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