Java tutorial
/** * ========================================================================================== * = JAHIA'S DUAL LICENSING - IMPORTANT INFORMATION = * ========================================================================================== * * http://www.jahia.com * * Copyright (C) 2002-2016 Jahia Solutions Group SA. All rights reserved. * * THIS FILE IS AVAILABLE UNDER TWO DIFFERENT LICENSES: * 1/GPL OR 2/JSEL * * 1/ GPL * ================================================================================== * * IF YOU DECIDE TO CHOOSE THE GPL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS: * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * 2/ JSEL - Commercial and Supported Versions of the program * =================================================================================== * * IF YOU DECIDE TO CHOOSE THE JSEL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS: * * Alternatively, commercial and supported versions of the program - also known as * Enterprise Distributions - must be used in accordance with the terms and conditions * contained in a separate written agreement between you and Jahia Solutions Group SA. * * If you are unsure which license is appropriate for your use, * please contact the sales department at sales@jahia.com. */ package org.jahia.modules.external.test.db; import java.util.ArrayList; import java.util.Collections; import java.util.List; import javax.jcr.PathNotFoundException; import javax.jcr.RepositoryException; import javax.jcr.Value; import org.apache.commons.lang.StringUtils; import org.jahia.modules.external.ExternalData; import org.jahia.modules.external.ExternalDataSource; /** * @author Christophe Laprun */ public class CanLoadChildrenInBatchMappedDatabaseDataSource extends MappedDatabaseDataSource implements ExternalDataSource.CanLoadChildrenInBatch { @Override public List<ExternalData> getChildrenNodes(String path) throws RepositoryException { String nodeType; try { nodeType = getNodeTypeName(path); } catch (PathNotFoundException e) { // cannot handle that path return Collections.emptyList(); } if (nodeType.equals(getSchemaNodeType())) { final List<String> tableNames = getTableNames(); final List<ExternalData> children = new ArrayList<ExternalData>(tableNames.size()); for (String tableName : tableNames) { children.add(getItemByPath("/" + tableName)); } return children; } else if (nodeType.equals(getTableNodeType())) { final List<String> rowIDs = getRowIDs(StringUtils.substringAfterLast(path, "/"), Collections.<String, Value>emptyMap()); final List<ExternalData> children = new ArrayList<ExternalData>(rowIDs.size()); for (String rowID : rowIDs) { children.add(getItemByPath(path + "/" + rowID)); } return children; } else { return Collections.emptyList(); } } }