KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > dbutils > MockResultSetMetaData


1 /*
2  * $Header: /home/cvs/jakarta-commons/dbutils/src/test/org/apache/commons/dbutils/MockResultSetMetaData.java,v 1.1 2003/11/02 19:15:23 dgraham Exp $
3  * $Revision: 1.1 $
4  * $Date: 2003/11/02 19:15:23 $
5  *
6  * ====================================================================
7  *
8  * The Apache Software License, Version 1.1
9  *
10  * Copyright (c) 2003 The Apache Software Foundation. All rights
11  * reserved.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  *
17  * 1. Redistributions of source code must retain the above copyright
18  * notice, this list of conditions and the following disclaimer.
19  *
20  * 2. Redistributions in binary form must reproduce the above copyright
21  * notice, this list of conditions and the following disclaimer in
22  * the documentation and/or other materials provided with the
23  * distribution.
24  *
25  * 3. The end-user documentation included with the redistribution, if
26  * any, must include the following acknowledgement:
27  * "This product includes software developed by the
28  * Apache Software Foundation (http://www.apache.org/)."
29  * Alternately, this acknowledgement may appear in the software itself,
30  * if and wherever such third-party acknowledgements normally appear.
31  *
32  * 4. The names "The Jakarta Project", "Commons", and "Apache Software
33  * Foundation" must not be used to endorse or promote products derived
34  * from this software without prior written permission. For written
35  * permission, please contact apache@apache.org.
36  *
37  * 5. Products derived from this software may not be called "Apache"
38  * nor may "Apache" appear in their names without prior written
39  * permission of the Apache Software Foundation.
40  *
41  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52  * SUCH DAMAGE.
53  * ====================================================================
54  *
55  * This software consists of voluntary contributions made by many
56  * individuals on behalf of the Apache Software Foundation. For more
57  * information on the Apache Software Foundation, please see
58  * <http://www.apache.org/>.
59  *
60  */

61
62 package org.apache.commons.dbutils;
63
64 import java.lang.reflect.InvocationHandler JavaDoc;
65 import java.lang.reflect.Method JavaDoc;
66 import java.sql.ResultSetMetaData JavaDoc;
67
68 /**
69  * MockResultSetMetaData dynamically implements the ResultSetMetaData
70  * interface.
71  *
72  * @author David Graham
73  */

74 public class MockResultSetMetaData implements InvocationHandler JavaDoc {
75
76     private String JavaDoc[] columnNames = null;
77
78     /**
79      * Create a <code>MockResultSetMetaData</code> proxy object. This is
80      * equivalent to:
81      * <pre>
82      * ProxyFactory.instance().createResultSetMetaData(new MockResultSetMetaData(columnNames));
83      * </pre>
84      *
85      * @param columnNames
86      * @return
87      */

88     public static ResultSetMetaData JavaDoc create(String JavaDoc[] columnNames) {
89         return ProxyFactory.instance().createResultSetMetaData(
90             new MockResultSetMetaData(columnNames));
91     }
92
93     public MockResultSetMetaData(String JavaDoc[] columnNames) {
94         super();
95         this.columnNames = columnNames;
96
97     }
98
99     public Object JavaDoc invoke(Object JavaDoc proxy, Method JavaDoc method, Object JavaDoc[] args)
100         throws Throwable JavaDoc {
101
102         String JavaDoc methodName = method.getName();
103
104         if (methodName.equals("getColumnCount")) {
105             return new Integer JavaDoc(this.columnNames.length);
106
107         } else if (
108             methodName.equals("getColumnName")
109                 || methodName.equals("getColumnLabel")) {
110
111             int col = ((Integer JavaDoc) args[0]).intValue() - 1;
112             return this.columnNames[col];
113
114             // stub out other methods for now
115
} else {
116             Class JavaDoc returnType = method.getReturnType();
117
118             if (returnType.equals(String JavaDoc.class)) {
119                 return "";
120
121             } else if (returnType.equals(Integer.TYPE)) {
122                 return new Integer JavaDoc(0);
123
124             } else {
125                 return Boolean.FALSE;
126             }
127         }
128     }
129 }
Popular Tags