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


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19
20 package org.apache.cayenne.project.validator;
21
22 import java.util.Iterator JavaDoc;
23
24 import org.apache.cayenne.access.DataDomain;
25 import org.apache.cayenne.project.Project;
26 import org.apache.cayenne.project.ProjectPath;
27 import org.apache.cayenne.util.Util;
28
29 /**
30  * @author Andrus Adamchik
31  */
32 public class DomainValidator extends TreeNodeValidator {
33     /**
34      * Constructor for DomainValidator.
35      */
36     public DomainValidator() {
37         super();
38     }
39
40     public void validateObject(ProjectPath path, Validator validator) {
41
42         // check for empty name
43 DataDomain domain = (DataDomain) path.getObject();
44         String JavaDoc name = domain.getName();
45         if (Util.isEmptyString(name)) {
46             validator.registerError("Unnamed DataDomain.", path);
47
48             // no more name assertions
49 return;
50         }
51
52         Project project = (Project) path.getObjectParent();
53         if (project == null) {
54             return;
55         }
56
57         // check for duplicate names in the parent context
58 Iterator JavaDoc it = project.getChildren().iterator();
59         while (it.hasNext()) {
60             DataDomain dom = (DataDomain) it.next();
61             if (dom == domain) {
62                 continue;
63             }
64
65             if (name.equals(dom.getName())) {
66                 validator.registerError("Duplicate DataDomain name: " + name + ".", path);
67                 return;
68             }
69         }
70     }
71 }
72
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