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.sql.ResultSet;
24: import java.sql.Statement;
25:
26: import net.sf.hajdbc.util.reflect.ProxyFactory;
27:
28: /**
29: * @author Paul Ferraro
30: * @param <D>
31: * @param <S>
32: */
33: public class LazyResultSetInvocationStrategy<D, S extends Statement>
34: extends DatabaseReadInvocationStrategy<D, S, ResultSet> {
35: private S statement;
36: private TransactionContext<D> transactionContext;
37: private FileSupport fileSupport;
38:
39: /**
40: * @param statement the statement from which to create result sets
41: * @param transactionContext
42: * @param fileSupport
43: */
44: public LazyResultSetInvocationStrategy(S statement,
45: TransactionContext<D> transactionContext,
46: FileSupport fileSupport) {
47: super ();
48:
49: this .statement = statement;
50: this .transactionContext = transactionContext;
51: this .fileSupport = fileSupport;
52: }
53:
54: /**
55: * @see net.sf.hajdbc.sql.DatabaseReadInvocationStrategy#invoke(net.sf.hajdbc.sql.SQLProxy, net.sf.hajdbc.sql.Invoker)
56: */
57: @Override
58: public ResultSet invoke(SQLProxy<D, S> proxy,
59: Invoker<D, S, ResultSet> invoker) throws Exception {
60: return ProxyFactory.createProxy(ResultSet.class,
61: new ResultSetInvocationHandler<D, S>(this.statement,
62: proxy, invoker, this.invokeAll(proxy, invoker),
63: this.transactionContext, this.fileSupport));
64: }
65: }
|