| /** |
| * Copyright (C) 2007 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.throwingproviders; |
| |
| import static java.lang.annotation.RetentionPolicy.RUNTIME; |
| |
| import com.google.inject.Key; |
| import com.google.inject.Provider; |
| import com.google.inject.Scope; |
| import com.google.inject.ScopeAnnotation; |
| |
| import java.lang.annotation.Retention; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * A simple scope that can be explicitly reset. |
| * |
| * @author jmourits@google.com (Jerome Mourits) |
| */ |
| class TestScope implements Scope { |
| |
| @Retention(RUNTIME) @ScopeAnnotation |
| public @interface Scoped { } |
| |
| private Map<Key, Object> inScopeObjectsMap = new HashMap<Key, Object>(); |
| |
| public <T> Provider<T> scope( |
| final Key<T> key, final Provider<T> provider) { |
| return new Provider<T>() { |
| @SuppressWarnings({"unchecked"}) |
| public T get() { |
| T t = (T) inScopeObjectsMap.get(key); |
| if (t == null) { |
| t = provider.get(); |
| inScopeObjectsMap.put(key, t); |
| } |
| return t; |
| } |
| }; |
| } |
| |
| public void beginNewScope() { |
| inScopeObjectsMap = new HashMap<Key, Object>(); |
| } |
| } |