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.form.select; 018 019import org.apache.wicket.model.IDetachable; 020import org.apache.wicket.model.IModel; 021 022/** 023 * @param <T> 024 * the model object's type 025 * @author Igor Vaynberg (ivaynberg) 026 * 027 */ 028public interface IOptionRenderer<T> extends IDetachable 029{ 030 /** 031 * Get the value for displaying to the user. 032 * 033 * @param object 034 * SelectOption model object 035 * @return the value for displaying to the user. 036 */ 037 String getDisplayValue(T object); 038 039 /** 040 * Gets the model that will be used to represent the value object. 041 * 042 * This is a good place to wrap the value object with a detachable model one is desired 043 * 044 * @param value 045 * @return model that will contain the value object 046 */ 047 IModel<T> getModel(T value); 048 049 /** 050 * Override when needed. 051 */ 052 @Override 053 default void detach() 054 { 055 } 056}