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Java > Open Source Codes > org > objectweb > jalisto > se > query > parameter > QueryParameter


1 /*
2  * Jalisto - JAva LIght STOrage
3  * Copyright (C) 2000-2005 Xcalia http://www.xcalia.com
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
18  *
19  * Xcalia
20  * 71, rue Desnouettes
21  * 75014 Paris - France
22  * http://www.xcalia.com
23  */
24 package org.objectweb.jalisto.se.query.parameter;
25
26 import org.objectweb.jalisto.se.query.exception.QueryEngineException;
27
28 public class QueryParameter extends QueryValue {
29
30     public QueryParameter(String JavaDoc parameterName) {
31         super(null);
32         this.parameterName = parameterName;
33         this.isBind = false;
34     }
35
36     public String JavaDoc getParameterName() {
37         return parameterName;
38     }
39
40     public void bind(Object JavaDoc value) {
41         if (isBind) {
42             throw new QueryEngineException("Parameter " + parameterName +
43                                               " is already bind to value" + String.valueOf(getValue()));
44         }
45         setValue(value);
46         isBind = true;
47     }
48
49     public boolean isBind() {
50         return isBind;
51     }
52
53     private String JavaDoc parameterName;
54     private boolean isBind;
55 }
56
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