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Java > Open Source Codes > org > apache > tapestry > contrib > table > model > ITableModelSource


1 // Copyright 2004, 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.contrib.table.model;
16
17 import org.apache.tapestry.IComponent;
18
19 /**
20  * A Tapestry component that provides the current table model.
21  * This interface is used for obtaining the table model source by
22  * components wrapped by it, as well as by external renderers,
23  * such as those provided by the column implementations
24  *
25  * @author mindbridge
26  */
27 public interface ITableModelSource extends IComponent
28 {
29     final static String JavaDoc TABLE_MODEL_SOURCE_ATTRIBUTE = "org.apache.tapestry.contrib.table.model.ITableModelSource";
30
31     /**
32      * Returns the table model currently used
33      * @return ITableModel the current table model
34      */
35     ITableModel getTableModel();
36
37     /**
38      * Notifies the model source that the model state has changed, and
39      * that it should consider saving it.<p>
40      * This method was added to allow using the table within a Block when
41      * the pageBeginRender() listener of the implementation will not be called
42      * and automatic state storage will therefore be hard to implement.
43      */
44     void fireObservedStateChange();
45 }
46
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