Java tutorial
/* * ==================================================================== * This file is part of the ebXML Registry by Icar Cnr v3.2 * ("eRICv32" in the following disclaimer). * * "eRICv32" 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. * * "eRICv32" 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 Version 3 * along with "eRICv32". If not, see <http://www.gnu.org/licenses/>. * * eRICv32 is a forked, derivative work, based on: * - freebXML Registry, a royalty-free, open source implementation of the ebXML Registry standard, * which was published under the "freebxml License, Version 1.1"; * - ebXML OMAR v3.2 Edition, published under the GNU GPL v3 by S. Krushe & P. Arwanitis. * * All derivative software changes and additions are made under * * Copyright (C) 2013 Ing. Antonio Messina <messina@pa.icar.cnr.it> * * This software consists of voluntary contributions made by many * individuals on behalf of the freebxml Software Foundation. For more * information on the freebxml Software Foundation, please see * "http://www.freebxml.org/". * * This product includes software developed by the Apache Software * Foundation (http://www.apache.org/). * * ==================================================================== */ package it.cnr.icar.eric.server.persistence.rdb; import it.cnr.icar.eric.server.common.ServerRequestContext; import it.cnr.icar.eric.server.util.ServerResourceBundle; import java.sql.ResultSet; import java.sql.SQLException; import javax.xml.bind.JAXBException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import javax.xml.registry.RegistryException; import org.oasis.ebxml.registry.bindings.rim.ExternalIdentifierType; import org.oasis.ebxml.registry.bindings.rim.ObjectRefType; import org.oasis.ebxml.registry.bindings.rim.RegistryObjectType; /** * ExternalIdentifier instances provide the additional identifier information * to RegistryObject such as DUNS number, Social Security Number, or an alias * name of the organization. The attribute name inherited from Object is * used to contain the identification scheme (Social Security Number, etc), * and the attribute value contains the actual information. Each RegistryObject * may have 0 or more ExternalIdentifier. * * @see <{RegistryObject}> * @author Farrukh S. Najmi * @author Adrian Chong */ class ExternalIdentifierDAO extends RegistryObjectDAO { private static final Log log = LogFactory.getLog(ExternalIdentifierDAO.class); /** * Use this constructor only. */ ExternalIdentifierDAO(ServerRequestContext context) { super(context); } public static String getTableNameStatic() { return "ExternalIdentifier"; } public String getTableName() { return getTableNameStatic(); } /** * Returns the SQL fragment string needed by insert or update statements * within insert or update method of sub-classes. This is done to avoid code * duplication. */ protected String getSQLStatementFragment(Object ro) throws RegistryException { ExternalIdentifierType externalIdentifier = (ExternalIdentifierType) ro; String stmtFragment = null; String registryObject = externalIdentifier.getRegistryObject(); String identificationScheme = externalIdentifier.getIdentificationScheme(); String value = externalIdentifier.getValue(); if (action == DAO_ACTION_INSERT) { stmtFragment = "INSERT INTO ExternalIdentifier " + super.getSQLStatementFragment(ro) + ", '" + registryObject + "', '" + identificationScheme + "', '" + value + "' ) "; } else if (action == DAO_ACTION_UPDATE) { stmtFragment = "UPDATE ExternalIdentifier SET " + super.getSQLStatementFragment(ro) + ", registryObject='" + registryObject + "', identificationScheme='" + identificationScheme + "', value='" + value + "' WHERE id = '" + ((RegistryObjectType) ro).getId() + "' "; } else if (action == DAO_ACTION_DELETE) { stmtFragment = super.getSQLStatementFragment(ro); } return stmtFragment; } /* * Gets the column name that is foreign key ref into parent table. * Must be overridden by derived class if it is not 'parent' */ protected String getParentAttribute() { return "registryObject"; } protected void loadObject(Object obj, ResultSet rs) throws RegistryException { try { if (!(obj instanceof ExternalIdentifierType)) { throw new RegistryException(ServerResourceBundle.getInstance() .getString("message.ExternalIdentifierTypeExpected", new Object[] { obj })); } ExternalIdentifierType ebExternalIdentifierType = (ExternalIdentifierType) obj; super.loadObject(obj, rs); String schemeId = rs.getString("identificationScheme"); if (schemeId != null) { ObjectRefType ebObjectRefType = bu.rimFac.createObjectRefType(); ebObjectRefType.setId(schemeId); context.getObjectRefs().add(ebObjectRefType); } ebExternalIdentifierType.setIdentificationScheme(schemeId); String registryObjectId = rs.getString("registryObject"); if (registryObjectId != null) { ObjectRefType ebObjectRefType = bu.rimFac.createObjectRefType(); context.getObjectRefs().add(ebObjectRefType); ebObjectRefType.setId(registryObjectId); ebExternalIdentifierType.setRegistryObject(registryObjectId); } String value = rs.getString("value"); ebExternalIdentifierType.setValue(value); } catch (SQLException e) { log.error(ServerResourceBundle.getInstance().getString("message.CaughtException1"), e); throw new RegistryException(e); } } /** * Creates an unitialized binding object for the type supported by this DAO. */ Object createObject() throws JAXBException { ExternalIdentifierType ebExternalIdentifierType = bu.rimFac.createExternalIdentifierType(); return ebExternalIdentifierType; } }