KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > objectstyle > cayenne > modeler > action > CreateDbEntityAction


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.
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, 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,
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 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.modeler.action;
57
58 import java.awt.event.ActionEvent JavaDoc;
59
60 import org.objectstyle.cayenne.map.DataMap;
61 import org.objectstyle.cayenne.map.DbEntity;
62 import org.objectstyle.cayenne.map.event.EntityEvent;
63 import org.objectstyle.cayenne.modeler.Application;
64 import org.objectstyle.cayenne.modeler.ProjectController;
65 import org.objectstyle.cayenne.modeler.event.EntityDisplayEvent;
66 import org.objectstyle.cayenne.modeler.util.CayenneAction;
67 import org.objectstyle.cayenne.project.NamedObjectFactory;
68 import org.objectstyle.cayenne.project.ProjectPath;
69
70 /**
71  * @author Andrei Adamchik
72  */
73 public class CreateDbEntityAction extends CayenneAction {
74
75     public static String JavaDoc getActionName() {
76         return "Create DbEntity";
77     }
78
79     /**
80      * Constructor for CreateDbEntityAction.
81      */
82     public CreateDbEntityAction(Application application) {
83         super(getActionName(), application);
84     }
85
86     public String JavaDoc getIconName() {
87         return "icon-dbentity.gif";
88     }
89
90     /**
91      * Creates new DbEntity, adds it to the current DataMap, fires DbEntityEvent and
92      * DbEntityDisplayEvent.
93      *
94      * @see org.objectstyle.cayenne.modeler.util.CayenneAction#performAction(ActionEvent)
95      */
96     public void performAction(ActionEvent JavaDoc e) {
97         ProjectController mediator = getProjectController();
98         DbEntity entity = createEntity(mediator.getCurrentDataMap());
99
100         mediator.fireDbEntityEvent(new EntityEvent(this, entity, EntityEvent.ADD));
101         EntityDisplayEvent displayEvent = new EntityDisplayEvent(this, entity, mediator
102                 .getCurrentDataMap(), mediator.getCurrentDataNode(), mediator
103                 .getCurrentDataDomain());
104         mediator.fireDbEntityDisplayEvent(displayEvent);
105     }
106
107     /**
108      * Constructs and returns a new DbEntity. Entity returned is added to the DataMap.
109      */
110     protected DbEntity createEntity(DataMap map) {
111         DbEntity entity = (DbEntity) NamedObjectFactory.createObject(DbEntity.class, map);
112         entity.setSchema(map.getDefaultSchema());
113         map.addDbEntity(entity);
114         return entity;
115     }
116
117     /**
118      * Returns <code>true</code> if path contains a DataMap object.
119      */
120     public boolean enableForPath(ProjectPath path) {
121         if (path == null) {
122             return false;
123         }
124
125         return path.firstInstanceOf(DataMap.class) != null;
126     }
127 }
Popular Tags