| /** |
| * Copyright (C) 2006 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.inject; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Internal context. Used to coordinate injections and support circular |
| * dependencies. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| class InternalContext { |
| |
| final InjectorImpl injector; |
| Map<Object, ConstructionContext<?>> constructionContexts; |
| InjectionPoint injectionPoint; |
| |
| InternalContext(InjectorImpl injector) { |
| this.injector = injector; |
| } |
| |
| InjectorImpl getInjectorImpl() { |
| return injector; |
| } |
| |
| @SuppressWarnings("unchecked") |
| <T> ConstructionContext<T> getConstructionContext(Object key) { |
| if (constructionContexts == null) { |
| constructionContexts = new HashMap<Object, ConstructionContext<?>>(); |
| ConstructionContext<T> constructionContext = new ConstructionContext<T>(); |
| constructionContexts.put(key, constructionContext); |
| return constructionContext; |
| } |
| else { |
| ConstructionContext<T> constructionContext |
| = (ConstructionContext<T>) constructionContexts.get(key); |
| if (constructionContext == null) { |
| constructionContext = new ConstructionContext<T>(); |
| constructionContexts.put(key, constructionContext); |
| } |
| return constructionContext; |
| } |
| } |
| |
| public InjectionPoint getInjectionPoint() { |
| return injectionPoint; |
| } |
| |
| public void setInjectionPoint(InjectionPoint injectionPoint) { |
| this.injectionPoint = injectionPoint; |
| } |
| |
| /** |
| * Ensures that an object requiring injection at Injector-creation time has |
| * been injected before its use. |
| */ |
| public void ensureMemberInjected(Object toInject) { |
| if (!injector.outstandingInjections.keySet().remove(toInject)) { |
| return; |
| } |
| |
| injector.injectMembers(toInject); |
| } |
| } |