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Java > Open Source Codes > org > apache > taglibs > standard > tag > el > sql > UpdateTag


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.taglibs.standard.tag.el.sql;
17
18 import javax.servlet.jsp.JspException JavaDoc;
19
20 import org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager;
21 import org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport;
22
23 /**
24  * Subclass for the JSTL library with EL support.
25  *
26  * @author Hans Bergsten
27  */
28 public class UpdateTag extends UpdateTagSupport {
29     
30     private String JavaDoc dataSourceEL;
31     private String JavaDoc sqlEL;
32
33     public void setDataSource(String JavaDoc dataSourceEL) {
34     this.dataSourceEL = dataSourceEL;
35     this.dataSourceSpecified = true;
36     }
37
38     /**
39      * Setter method for the SQL statement to use for the
40      * query. The statement may contain parameter markers
41      * (question marks, ?). If so, the parameter values must
42      * be set using nested value elements.
43      */
44     public void setSql(String JavaDoc sqlEL) {
45     this.sqlEL = sqlEL;
46     }
47
48     public int doStartTag() throws JspException JavaDoc {
49     if (dataSourceEL != null) {
50         rawDataSource = (Object JavaDoc)
51         ExpressionEvaluatorManager.evaluate("dataSource",
52             dataSourceEL, Object JavaDoc.class, this, pageContext);
53     }
54     if (sqlEL != null) {
55         sql = (String JavaDoc) ExpressionEvaluatorManager.evaluate("sql", sqlEL,
56             String JavaDoc.class, this, pageContext);
57     }
58     return super.doStartTag();
59     }
60 }
61
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