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.io.Serializable; 018 019 import org.apache.tapestry.IRender; 020 import org.apache.tapestry.IRequestCycle; 021 022 /** 023 * This interface provides a renderer to present the data in a table column. 024 * It is usually used by the {@link org.apache.tapestry.contrib.table.model.ITableColumn} 025 * implementations via aggregation. 026 * 027 * @see org.apache.tapestry.contrib.table.model.common.AbstractTableColumn 028 * @author mindbridge 029 * @since 2.3 030 */ 031 public interface ITableRendererSource extends Serializable 032 { 033 /** 034 * Returns a renderer to present the data of the row in the given column. <p> 035 * This method can also be used to return a renderer to present the 036 * heading of the column. In such a case the row passed would be null. 037 * 038 * @see org.apache.tapestry.contrib.table.model.ITableColumn#getValueRenderer(IRequestCycle, ITableModelSource, Object) 039 */ 040 public IRender getRenderer( 041 IRequestCycle objCycle, 042 ITableModelSource objSource, 043 ITableColumn objColumn, 044 Object objRow); 045 046 }