001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.extensions.markup.html.repeater.data.table; 018 019import org.apache.wicket.Component; 020import org.apache.wicket.markup.html.basic.Label; 021import org.apache.wicket.model.IModel; 022 023/** 024 * A helper implementation for the IColumn interface 025 * 026 * @author Igor Vaynberg ( ivaynberg ) 027 * @param <T> 028 * the type of the object that will be rendered in this column's cells 029 * @param <S> 030 * the type of the sort property 031 */ 032public abstract class AbstractColumn<T, S> implements IStyledColumn<T, S> 033{ 034 private static final long serialVersionUID = 1L; 035 036 private final IModel<String> displayModel; 037 038 private final S sortProperty; 039 040 /** 041 * @param displayModel 042 * model used to generate header text 043 * @param sortProperty 044 * sort property this column represents 045 */ 046 public AbstractColumn(final IModel<String> displayModel, final S sortProperty) 047 { 048 this.displayModel = displayModel; 049 this.sortProperty = sortProperty; 050 } 051 052 /** 053 * @param displayModel 054 * model used to generate header text 055 */ 056 public AbstractColumn(final IModel<String> displayModel) 057 { 058 this(displayModel, null); 059 } 060 061 /** 062 * @return returns display model to be used for the header component 063 */ 064 public IModel<String> getDisplayModel() 065 { 066 return displayModel; 067 } 068 069 @Override 070 public S getSortProperty() 071 { 072 return sortProperty; 073 } 074 075 @Override 076 public Component getHeader(final String componentId) 077 { 078 return new Label(componentId, getDisplayModel()); 079 } 080 081 @Override 082 public void detach() 083 { 084 if (displayModel != null) 085 { 086 displayModel.detach(); 087 } 088 } 089 090 @Override 091 public String getCssClass() 092 { 093 return null; 094 } 095}