| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.web.bindery.autobean.vm; |
| |
| import com.google.web.bindery.autobean.shared.AutoBean; |
| import com.google.web.bindery.autobean.shared.AutoBeanFactory; |
| import com.google.web.bindery.autobean.shared.AutoBeanFactory.Category; |
| import com.google.web.bindery.autobean.shared.AutoBeanFactory.NoWrap; |
| import com.google.web.bindery.autobean.shared.impl.EnumMap; |
| import com.google.web.bindery.autobean.vm.impl.FactoryHandler; |
| import com.google.web.bindery.autobean.vm.impl.ProxyAutoBean; |
| |
| /** |
| * Generates JVM-compatible implementations of AutoBeanFactory and AutoBean |
| * types. |
| * <p> |
| * This implementation is written assuming that the AutoBeanFactory and |
| * associated declarations will validate if compiled and used with the |
| * AutoBeanFactoyModel. |
| * <p> |
| * <span style='color: red'>This is experimental, unsupported code.</span> |
| */ |
| public class AutoBeanFactorySource { |
| /* |
| * NB: This implementation is excessively dynamic, however the inability to |
| * create a TypeOracle fram a ClassLoader prevents re-using the existing model |
| * code. If the model code could be reused, it would be straightforward to |
| * simply generate implementations of the various interfaces. |
| */ |
| private static final AutoBeanFactory EMPTY = create(AutoBeanFactory.class); |
| |
| /** |
| * Create an instance of an AutoBeanFactory. |
| * |
| * @param <F> the factory type |
| * @param clazz the Class representing the factory interface |
| * @return an instance of the AutoBeanFactory |
| */ |
| public static <F extends AutoBeanFactory> F create(Class<F> clazz) { |
| Configuration.Builder builder = new Configuration.Builder(); |
| Category cat = clazz.getAnnotation(Category.class); |
| if (cat != null) { |
| builder.setCategories(cat.value()); |
| } |
| NoWrap noWrap = clazz.getAnnotation(NoWrap.class); |
| if (noWrap != null) { |
| builder.setNoWrap(noWrap.value()); |
| } |
| |
| return ProxyAutoBean.makeProxy(clazz, new FactoryHandler(builder.build()), EnumMap.class); |
| } |
| |
| /** |
| * Create an instance of an AutoBean directly. |
| * |
| * @param <T> the interface type implemented by the AutoBean |
| * @param clazz the interface type implemented by the AutoBean |
| * @return an instance of an AutoBean |
| */ |
| public static <T> AutoBean<T> createBean(Class<T> clazz, Configuration configuration) { |
| return new ProxyAutoBean<T>(EMPTY, clazz, configuration); |
| } |
| } |