01: /*
02: * HA-JDBC: High-Availability JDBC
03: * Copyright (c) 2004-2007 Paul Ferraro
04: *
05: * This library is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU Lesser General Public License as published by the
07: * Free Software Foundation; either version 2.1 of the License, or (at your
08: * option) any later version.
09: *
10: * This library is distributed in the hope that it will be useful, but WITHOUT
11: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13: * for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public License
16: * along with this library; if not, write to the Free Software Foundation,
17: * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18: *
19: * Contact: ferraro@users.sourceforge.net
20: */
21: package net.sf.hajdbc.sql;
22:
23: import java.lang.reflect.Method;
24: import java.util.Set;
25:
26: import javax.sql.DataSource;
27:
28: import net.sf.hajdbc.DatabaseCluster;
29: import net.sf.hajdbc.util.reflect.Methods;
30:
31: /**
32: * @author Paul Ferraro
33: *
34: */
35: @SuppressWarnings("nls")
36: public class DataSourceInvocationHandler extends
37: CommonDataSourceInvocationHandler<DataSource> {
38: private static final Set<Method> getConnectionMethods = Methods
39: .findMethods(DataSource.class, "getConnection");
40:
41: /**
42: * @param databaseCluster
43: */
44: public DataSourceInvocationHandler(
45: DatabaseCluster<DataSource> databaseCluster) {
46: super (databaseCluster, DataSource.class);
47: }
48:
49: /**
50: * @see net.sf.hajdbc.sql.AbstractChildInvocationHandler#getInvocationStrategy(java.lang.Object, java.lang.reflect.Method, java.lang.Object[])
51: */
52: @Override
53: protected InvocationStrategy<DataSource, DataSource, ?> getInvocationStrategy(
54: DataSource dataSource, Method method, Object[] parameters)
55: throws Exception {
56: if (getConnectionMethods.contains(method)) {
57: TransactionContext<DataSource> context = new LocalTransactionContext<DataSource>(
58: this .cluster);
59:
60: return new ConnectionInvocationStrategy<DataSource, DataSource>(
61: this.cluster, dataSource, context);
62: }
63:
64: return super.getInvocationStrategy(dataSource, method,
65: parameters);
66: }
67: }
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