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 java.util.Iterator; 018 019 /** 020 * A model of the table's data 021 * This model need not be used. Implementations may choose to 022 * access data via an abstraction. 023 * 024 * @author mindbridge 025 */ 026 public interface ITableDataModel 027 { 028 /** 029 * Method getRowCount. 030 * @return int the number of rows in the model 031 */ 032 int getRowCount(); 033 034 /** 035 * Iterates over all of the rows in the model 036 * @return Iterator the iterator for access to the data 037 */ 038 Iterator getRows(); 039 040 /** 041 * Method addTableDataModelListener 042 * Adds a listener that is notified when the data in the model is changed 043 * @param objListener the listener to add 044 */ 045 void addTableDataModelListener(ITableDataModelListener objListener); 046 047 /** 048 * Method removeTableDataModelListener. 049 * Removes a listener that is notified when the data in the model is changed 050 * @param objListener the listener to remove 051 */ 052 void removeTableDataModelListener(ITableDataModelListener objListener); 053 054 }