Java tutorial
/* * ==================================================================== * * This code is subject to the freebxml License, Version 1.1 * * Copyright (c) 2001 - 2003 freebxml.org. All rights reserved. * * $Header: /cvsroot/ebxmlrr/omar/src/java/org/freebxml/omar/server/persistence/rdb/ObjectRefDAO.java,v 1.10 2006/08/24 20:42:29 farrukh_najmi Exp $ * ==================================================================== */ package org.freebxml.omar.server.persistence.rdb; 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.freebxml.omar.server.common.ServerRequestContext; import org.freebxml.omar.server.util.ServerResourceBundle; import org.oasis.ebxml.registry.bindings.rim.IdentifiableType; import org.oasis.ebxml.registry.bindings.rim.ObjectRef; import org.oasis.ebxml.registry.bindings.rim.ObjectRefType; /** * * @author Farrukh S. Najmi * @author Adrian Chong */ class ObjectRefDAO extends IdentifiableDAO { private static final Log log = LogFactory.getLog(ObjectRefDAO.class); /** * Use this constructor only. */ ObjectRefDAO(ServerRequestContext context) { super(context); } public static String getTableNameStatic() { return "ObjectRef"; } 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 object) throws RegistryException { ObjectRefType objectRef = (ObjectRefType) object; String stmtFragment = super.getSQLStatementFragment(object); if (action == DAO_ACTION_INSERT) { stmtFragment = " INSERT INTO ObjectRef " + super.getSQLStatementFragment(object) + " )"; } else if (action == DAO_ACTION_UPDATE) { stmtFragment = "UPDATE ObjectRef SET +" + super.getSQLStatementFragment(object) + "' WHERE id = '" + ((IdentifiableType) object).getId() + "' "; } else if (action == DAO_ACTION_DELETE) { } return stmtFragment; } protected void loadObject(Object obj, ResultSet rs) throws RegistryException { try { if (!(obj instanceof org.oasis.ebxml.registry.bindings.rim.ObjectRef)) { throw new RegistryException(ServerResourceBundle.getInstance() .getString("message.ObjectRefTypeExpected", new Object[] { obj })); } ObjectRef objectRef = (ObjectRef) obj; String id = rs.getString("id"); objectRef.setId(id); String home = rs.getString("home"); if (home != null) { objectRef.setHome(home); } } 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 { ObjectRef obj = bu.rimFac.createObjectRef(); return obj; } }