001/* 002 * HA-JDBC: High-Availability JDBC 003 * Copyright (c) 2004-2008 Paul Ferraro 004 * 005 * This library is free software; you can redistribute it and/or modify it 006 * under the terms of the GNU Lesser General Public License as published by the 007 * Free Software Foundation; either version 2.1 of the License, or (at your 008 * option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, but WITHOUT 011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 013 * for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public License 016 * along with this library; if not, write to the Free Software Foundation, 017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018 * 019 * Contact: ferraro@users.sourceforge.net 020 */ 021package net.sf.hajdbc.sql; 022 023import javax.naming.Reference; 024import javax.naming.StringRefAddr; 025import javax.naming.spi.ObjectFactory; 026 027/** 028 * @author Paul Ferraro 029 * @param <D> 030 */ 031public abstract class CommonDataSourceReference<D> extends Reference 032{ 033 private static final long serialVersionUID = 1408239702660701511L; 034 035 protected static final String CLUSTER = "cluster"; //$NON-NLS-1$ 036 protected static final String CONFIG = "config"; //$NON-NLS-1$ 037 038 /** 039 * Constructs a reference for a DataSource implementation. 040 * @param targetClass the target class of the DataSource. 041 * @param factoryClass the ObjectFactory class for creating a DataSource 042 * @param cluster a cluster identifier 043 * @param config the uri of the configuration file 044 */ 045 protected CommonDataSourceReference(Class<D> targetClass, Class<? extends ObjectFactory> factoryClass, String cluster, String config) 046 { 047 super(targetClass.getName(), factoryClass.getName(), null); 048 049 if (cluster == null) 050 { 051 throw new IllegalArgumentException(); 052 } 053 054 this.add(new StringRefAddr(CLUSTER, cluster)); 055 056 if (config != null) 057 { 058 this.add(new StringRefAddr(CONFIG, config)); 059 } 060 } 061}