/**
* 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.internal;
import com.google.inject.spi.Dependency;
import java.util.Map;
/**
* Internal context. Used to coordinate injections and support circular
* dependencies.
*
* @author crazybob@google.com (Bob Lee)
*/
final class InternalContext {
private Map<Object, ConstructionContext<?>> constructionContexts = Maps.newHashMap();
private Dependency dependency;
@SuppressWarnings("unchecked")
public <T> ConstructionContext<T> getConstructionContext(Object key) {
ConstructionContext<T> constructionContext
= (ConstructionContext<T>) constructionContexts.get(key);
if (constructionContext == null) {
constructionContext = new ConstructionContext<T>();
constructionContexts.put(key, constructionContext);
}
return constructionContext;
}
public Dependency getDependency() {
return dependency;
}
public Dependency setDependency(Dependency dependency) {
Dependency previous = dependency;
this.dependency = dependency;
return previous;
}
}