1 package org.apache.turbine.util.db;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache Turbine" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache Turbine", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 /***
58 * Models a specific column in a specific table.
59 *
60 * @author <a href="mailto:dlr@collab.net">Daniel Rall</a>
61 * @author <a href="mailto:jmcnally@collab.net">John McNally</a>
62 */
63 public class TableColumn
64 {
65 /***
66 * The name of the database table.
67 */
68 protected String tableName;
69
70 /***
71 * The name of the database column.
72 */
73 protected String columnName;
74
75 /***
76 * The concatenation of the table name and column name separated with a
77 * dot.
78 */
79 private String tableColumn;
80
81 public TableColumn(String tableName, String columnName)
82 {
83 this.tableName = tableName;
84 this.columnName = columnName;
85 this.tableColumn = (tableName + '.' + columnName);
86 }
87
88 /***
89 * Compares this object with another <code>TableColumn</code>.
90 *
91 * @param obj The object to compare to.
92 */
93 public boolean equals(Object obj)
94 {
95 if (this == obj)
96 {
97 return true;
98 }
99 else if (obj == null)
100 {
101 return false;
102 }
103 else if (obj instanceof TableColumn)
104 {
105 TableColumn tc = (TableColumn)obj;
106 return (tableName.equals(tc.tableName) &&
107 columnName.equals(tc.columnName));
108 }
109 else
110 {
111 return false;
112 }
113 }
114
115 /***
116 * The concatenation of the table name and column name separated with a
117 * dot.
118 *
119 * @return This object's string representation.
120 */
121 public String toString()
122 {
123 return tableColumn;
124 }
125 }
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