01: /* ***** BEGIN LICENSE BLOCK *****
02: * Version: MPL 1.1
03: * The contents of this file are subject to the Mozilla Public License Version
04: * 1.1 (the "License"); you may not use this file except in compliance with
05: * the License. You may obtain a copy of the License at
06: * http://www.mozilla.org/MPL/
07: *
08: * Software distributed under the License is distributed on an "AS IS" basis,
09: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10: * for the specific language governing rights and limitations under the
11: * License.
12: *
13: * The Original Code is Riot.
14: *
15: * The Initial Developer of the Original Code is
16: * Neteye GmbH.
17: * Portions created by the Initial Developer are Copyright (C) 2007
18: * the Initial Developer. All Rights Reserved.
19: *
20: * Contributor(s):
21: * Felix Gnass [fgnass at neteye dot de]
22: *
23: * ***** END LICENSE BLOCK ***** */
24: package org.riotfamily.riot.form.options;
25:
26: import java.util.ArrayList;
27: import java.util.Collection;
28:
29: import org.riotfamily.forms.Form;
30: import org.riotfamily.forms.OptionValuesAdapter;
31: import org.riotfamily.riot.dao.RiotDao;
32: import org.riotfamily.riot.list.support.ListParamsImpl;
33:
34: /**
35: * @author Felix Gnass [fgnass at neteye dot de]
36: * @since 6.5
37: */
38: public class RiotDaoOptionValuesAdapter implements OptionValuesAdapter {
39:
40: public boolean supports(Object model) {
41: return model instanceof RiotDao;
42: }
43:
44: public Collection getValues(Object model, Form form) {
45: RiotDao dao = (RiotDao) model;
46: Collection values = dao.list(null, new ListParamsImpl());
47:
48: //Remove the object being edited from the collection to prevent circular
49: //references. This is only done when editing an existing object and
50: //classes are assignment compatible.
51: if (!form.isNew()
52: && dao.getEntityClass().isAssignableFrom(
53: form.getEditorBinder().getBeanClass())) {
54:
55: ArrayList copy = new ArrayList(values);
56: copy.remove(form.getBackingObject());
57: return copy;
58: }
59: return values;
60: }
61: }
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