001/* 002 * HA-JDBC: High-Availability JDBC 003 * Copyright (c) 2004-2007 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.util.reflect; 022 023import java.lang.reflect.InvocationHandler; 024import java.lang.reflect.Proxy; 025 026/** 027 * @author Paul Ferraro 028 */ 029public final class ProxyFactory 030{ 031 /** 032 * Helper method to simplify creation and casting of a proxy instance for a single interface. 033 * @param <T> target interface 034 * @param targetInterface interface to proxy 035 * @param handler an invocation handler 036 * @return a proxy instance for the given target interface 037 */ 038 public static <T> T createProxy(Class<T> targetInterface, InvocationHandler handler) 039 { 040 return targetInterface.cast(Proxy.newProxyInstance(targetInterface.getClassLoader(), new Class<?>[] { targetInterface }, handler)); 041 } 042 043 private ProxyFactory() 044 { 045 // Hide constructor 046 } 047}