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Java > Open Source Codes > org > objectstyle > cayenne > project > validator > DomainValidator


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
5  *
6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights 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.
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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, if any,
22  * must include the following acknowlegement:
23  * "This product includes software developed by independent contributors
24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
29  * or promote products derived from this software without prior written
30  * permission. For written permission, email
31  * "andrus at objectstyle dot org".
32  *
33  * 5. Products derived from this software may not be called "ObjectStyle"
34  * or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
35  * names without prior written permission.
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 OBJECTSTYLE GROUP 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,
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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 and hosted on ObjectStyle Group web site. For more
53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
55  */
56 package org.objectstyle.cayenne.project.validator;
57
58 import java.util.Iterator JavaDoc;
59
60 import org.objectstyle.cayenne.access.DataDomain;
61 import org.objectstyle.cayenne.project.Project;
62 import org.objectstyle.cayenne.project.ProjectPath;
63 import org.objectstyle.cayenne.util.Util;
64
65 /**
66  * @author Andrei Adamchik
67  */
68 public class DomainValidator extends TreeNodeValidator {
69     /**
70      * Constructor for DomainValidator.
71      */
72     public DomainValidator() {
73         super();
74     }
75
76     public void validateObject(ProjectPath path, Validator validator) {
77
78         // check for empty name
79 DataDomain domain = (DataDomain) path.getObject();
80         String JavaDoc name = domain.getName();
81         if (Util.isEmptyString(name)) {
82             validator.registerError("Unnamed DataDomain.", path);
83
84             // no more name assertions
85 return;
86         }
87
88         Project project = (Project) path.getObjectParent();
89         if (project == null) {
90             return;
91         }
92
93         // check for duplicate names in the parent context
94 Iterator JavaDoc it = project.getChildren().iterator();
95         while (it.hasNext()) {
96             DataDomain dom = (DataDomain) it.next();
97             if (dom == domain) {
98                 continue;
99             }
100
101             if (name.equals(dom.getName())) {
102                 validator.registerError("Duplicate DataDomain name: " + name + ".", path);
103                 return;
104             }
105         }
106     }
107 }
108
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