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.util.reflect;
22:
23: import java.lang.reflect.InvocationHandler;
24: import java.lang.reflect.Proxy;
25:
26: /**
27: * @author Paul Ferraro
28: */
29: public final class ProxyFactory {
30: /**
31: * Helper method to simplify creation and casting of a proxy instance for a single interface.
32: * @param <T> target interface
33: * @param targetInterface interface to proxy
34: * @param handler an invocation handler
35: * @return a proxy instance for the given target interface
36: */
37: public static <T> T createProxy(Class<T> targetInterface,
38: InvocationHandler handler) {
39: return targetInterface.cast(Proxy.newProxyInstance(
40: targetInterface.getClassLoader(),
41: new Class<?>[] { targetInterface }, handler));
42: }
43:
44: private ProxyFactory() {
45: // Hide constructor
46: }
47: }
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