001 /* 002 * Copyright 2005 [ini4j] Development Team 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 package org.ini4j; 017 018 import java.beans.*; 019 import java.lang.reflect.*; 020 import java.util.prefs.*; 021 import java.util.*; 022 023 public class PreferencesBean 024 { 025 public static <T> T newInstance(Class<T> clazz, final Preferences prefs) 026 { 027 return clazz.cast(Proxy.newProxyInstance(clazz.getClassLoader(), new Class[] {clazz}, new AbstractBeanInvocationHandler() 028 { 029 protected Object getPropertySpi(String property, Class<?> clazz) 030 { 031 return prefs.get(property,null); 032 } 033 034 protected void setPropertySpi(String property, Object value, Class<?> clazz) 035 { 036 prefs.put(property, value.toString()); 037 } 038 039 protected boolean hasPropertySpi(String property) 040 { 041 return prefs.get(property, null) != null; 042 } 043 } 044 )); 045 } 046 }