CatalogDAOFactory |
/* * Copyright 2002 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF * LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of * any nuclear facility. */ package com.sun.j2ee.blueprints.catalog.dao; import javax.naming.NamingException; import javax.naming.InitialContext; import com.sun.j2ee.blueprints.catalog.util.JNDINames; import com.sun.j2ee.blueprints.catalog.exceptions.CatalogDAOSysException; public class CatalogDAOFactory { /** * This method instantiates a particular subclass implementing * the DAO methods based on the information obtained from the * deployment descriptor */ public static CatalogDAO getDAO() throws CatalogDAOSysException { CatalogDAO catDao = null; try { InitialContext ic = new InitialContext(); String className = (String) ic.lookup(JNDINames.CATALOG_DAO_CLASS); catDao = (CatalogDAO) Class.forName(className).newInstance(); } catch (NamingException ne) { throw new CatalogDAOSysException("CatalogDAOFactory.getDAO: NamingException while getting DAO type : \n" + ne.getMessage()); } catch (Exception se) { throw new CatalogDAOSysException("CatalogDAOFactory.getDAO: Exception while getting DAO type : \n" + se.getMessage()); } return catDao; } }
CatalogDAOFactory |