001 // Copyright 2004, 2005 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // You may obtain a copy of the License at 006 // 007 // http://www.apache.org/licenses/LICENSE-2.0 008 // 009 // Unless required by applicable law or agreed to in writing, software 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 015 package org.apache.tapestry.contrib.table.model; 016 017 import org.apache.tapestry.IComponent; 018 019 /** 020 * A Tapestry component that provides the current table model. 021 * This interface is used for obtaining the table model source by 022 * components wrapped by it, as well as by external renderers, 023 * such as those provided by the column implementations 024 * 025 * @author mindbridge 026 */ 027 public interface ITableModelSource extends IComponent 028 { 029 final static String TABLE_MODEL_SOURCE_ATTRIBUTE = "org.apache.tapestry.contrib.table.model.ITableModelSource"; 030 031 /** 032 * Returns the table model currently used 033 * @return ITableModel the current table model 034 */ 035 ITableModel getTableModel(); 036 037 /** 038 * Notifies the model source that the model state has changed, and 039 * that it should consider saving it.<p> 040 * This method was added to allow using the table within a Block when 041 * the pageBeginRender() listener of the implementation will not be called 042 * and automatic state storage will therefore be hard to implement. 043 */ 044 void fireObservedStateChange(); 045 }