Java tutorial
/******************************************************************************* * This file is part of the EEG-database project * * ========================================== * * Copyright (C) 2013 by University of West Bohemia (http://www.zcu.cz/en/) * * *********************************************************************************************************************** * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. * * *********************************************************************************************************************** * * ResearchGroupConverter.java, 2013/10/02 00:01 Jakub Rinkes ******************************************************************************/ package cz.zcu.kiv.eegdatabase.wui.ui.experiments.converters; import cz.zcu.kiv.eegdatabase.data.pojo.ResearchGroup; import cz.zcu.kiv.eegdatabase.wui.core.group.ResearchGroupFacade; import org.apache.wicket.util.convert.IConverter; import org.apache.wicket.util.string.Strings; import java.util.List; import java.util.Locale; public class ResearchGroupConverter implements IConverter<ResearchGroup> { private static final long serialVersionUID = 91117331619895549L; private ResearchGroupFacade researchGroupFacade; public ResearchGroupConverter(ResearchGroupFacade researchGroupFacade) { this.researchGroupFacade = researchGroupFacade; } @Override public ResearchGroup convertToObject(String s, Locale locale) { if (Strings.isEmpty(s)) { return null; } List<ResearchGroup> researchGroups = researchGroupFacade.readByParameter("title", s); return (researchGroups != null && researchGroups.size() > 0) ? researchGroups.get(0) : new ResearchGroup(); } @Override public String convertToString(ResearchGroup researchGroup, Locale locale) { return researchGroup.getTitle(); } }