1 package org.apache.torque.adapter;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
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14 * notice, this list of conditions and the following disclaimer.
15 *
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18 * the documentation and/or other materials provided with the
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20 *
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22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
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28 * 4. The names "Apache" and "Apache Software Foundation" and
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37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
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55 */
56
57 import java.util.HashMap;
58 import java.util.Map;
59
60 /***
61 * This class creates different {@link org.apache.torque.adapter.DB}
62 * objects based on specified JDBC driver name.
63 *
64 * @author <a href="mailto:frank.kim@clearink.com">Frank Y. Kim</a>
65 * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
66 * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
67 * @author <a href="mailto:ralf@reswi.ruhr.de">Ralf Stranzenbach</a>
68 * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
69 * @version $Id: DBFactory.java,v 1.35 2003/01/08 16:43:57 henning Exp $
70 */
71 public class DBFactory
72 {
73 /***
74 * JDBC driver to Torque Adapter map.
75 */
76 private static Map adapters = new HashMap(40);
77
78 /***
79 * Initialize the JDBC driver to Torque Adapter map.
80 */
81 static
82 {
83 adapters.put("com.ibm.as400.access.AS400JDBCDriver", DBDB2400.class);
84 adapters.put("COM.ibm.db2.jdbc.app.DB2Driver", DBDB2App.class);
85 adapters.put("COM.ibm.db2.jdbc.net.DB2Driver", DBDB2Net.class);
86 adapters.put("COM.cloudscape.core.JDBCDriver", DBCloudscape.class);
87 adapters.put("org.hsql.jdbcDriver", DBHypersonicSQL.class);
88 adapters.put("org.hsqldb.jdbcDriver", DBHypersonicSQL.class);
89 adapters.put("interbase.interclient.Driver", DBInterbase.class);
90 adapters.put("org.enhydra.instantdb.jdbc.idbDriver", DBInstantDB.class);
91 adapters.put("com.microsoft.jdbc.sqlserver.SQLServerDriver",
92 DBMSSQL.class);
93 adapters.put("com.jnetdirect.jsql.JSQLDriver", DBMSSQL.class);
94 adapters.put("org.gjt.mm.mysql.Driver", DBMM.class);
95 adapters.put("oracle.jdbc.driver.OracleDriver", DBOracle.class);
96 adapters.put("org.postgresql.Driver", DBPostgres.class);
97 adapters.put("com.sap.dbtech.jdbc.DriverSapDB", DBSapDB.class);
98 adapters.put("com.sybase.jdbc.SybDriver", DBSybase.class);
99 adapters.put("com.sybase.jdbc2.jdbc.SybDriver", DBSybase.class);
100 adapters.put("weblogic.jdbc.pool.Driver", DBWeblogic.class);
101 adapters.put("org.axiondb.jdbc.AxionDriver", DBAxion.class);
102 adapters.put("com.informix.jdbc.IfxDriver", DBInformix.class);
103 adapters.put("sun.jdbc.odbc.JdbcOdbcDriver", DBOdbc.class);
104
105 // add some short names to be used when drivers are not used
106 adapters.put("as400", DBDB2400.class);
107 adapters.put("db2app", DBDB2App.class);
108 adapters.put("db2net", DBDB2Net.class);
109 adapters.put("cloudscape", DBCloudscape.class);
110 adapters.put("hypersonic", DBHypersonicSQL.class);
111 adapters.put("interbase", DBInterbase.class);
112 adapters.put("instantdb", DBInstantDB.class);
113 adapters.put("mssql", DBMSSQL.class);
114 adapters.put("mysql", DBMM.class);
115 adapters.put("oracle", DBOracle.class);
116 adapters.put("postgresql", DBPostgres.class);
117 adapters.put("sapdb", DBSapDB.class);
118 adapters.put("sybase", DBSybase.class);
119 adapters.put("weblogic", DBWeblogic.class);
120 adapters.put("axion", DBAxion.class);
121 adapters.put("informix", DBInformix.class);
122 adapters.put("odbc", DBOdbc.class);
123 adapters.put("msaccess", DBOdbc.class);
124
125 adapters.put("", DBNone.class);
126 }
127
128 /***
129 * Creates a new instance of the Torque database adapter associated
130 * with the specified JDBC driver or adapter key.
131 *
132 * @param driver The fully-qualified name of the JDBC driver to
133 * create a new adapter instance for or a shorter form adapter key.
134 * @return An instance of a Torque database adapter.
135 * @throws InstantiationException throws if the JDBC driver could not be
136 * instantiated
137 */
138 public static DB create(String driver)
139 throws InstantiationException
140 {
141 Class adapterClass = (Class) adapters.get(driver);
142
143 if (adapterClass != null)
144 {
145 try
146 {
147 DB adapter = (DB) adapterClass.newInstance();
148 // adapter.setJDBCDriver(driver);
149 return adapter;
150 }
151 catch (IllegalAccessException e)
152 {
153 throw new InstantiationException(
154 "Could not instantiate adapter for JDBC driver: "
155 + driver
156 + ": Assure that adapter bytecodes are in your classpath");
157 }
158 }
159 else
160 {
161 throw new InstantiationException(
162 "Unknown JDBC driver: "
163 + driver
164 + ": Check your configuration file");
165 }
166 }
167 }
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