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/**
* 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.Map;
import java.util.HashMap;
/**
* Internal context. Used to coordinate injections and support circular
* dependencies.
*
* @author crazybob@google.com (Bob Lee)
*/
class InternalContext {
final ContainerImpl container;
Map<Object, ConstructionContext<?>> constructionContexts;
ExternalContext<?> externalContext;
InternalContext(ContainerImpl container) {
this.container = container;
}
public Container getContainer() {
return container;
}
ContainerImpl getContainerImpl() {
return container;
}
@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;
}
}
@SuppressWarnings("unchecked")
<T> ExternalContext<T> getExternalContext() {
return (ExternalContext<T>) externalContext;
}
void setExternalContext(ExternalContext<?> externalContext) {
this.externalContext = externalContext;
}
}
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