1 /**
2 * Copyright 2010 The Kuali Foundation Licensed under the
3 * Educational Community License, Version 2.0 (the "License"); you may
4 * not use this file except in compliance with the License. You may
5 * obtain a copy of the License at
6 *
7 * http://www.osedu.org/licenses/ECL-2.0
8 *
9 * Unless required by applicable law or agreed to in writing,
10 * software distributed under the License is distributed on an "AS IS"
11 * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12 * or implied. See the License for the specific language governing
13 * permissions and limitations under the License.
14 */
15
16 package org.kuali.student.common.ui.client.mvc;
17
18 import com.google.gwt.event.shared.HandlerRegistration;
19
20 /**
21 * Model object used as a container for the model state. Sources ModelChangeEvents used for tracking the model state.
22 *
23 * @author Kuali Student Team
24 * @param <T>
25 * the type of model object to be contained within the model
26 */
27 public interface Model {
28 /**
29 * Adds a ModelChangeHandler that will be invoked for ModelChangeEvents
30 *
31 * @param handler
32 * the handler to add
33 * @return HandlerRegistration that can be used to unregister the handler later
34 */
35 public HandlerRegistration addModelChangeHandler(ModelChangeHandler handler);
36
37 }