Struts 2ソースコードの浅い分析-Container

Containerコンテナインタフェース定義

public interface Container extends Serializable {

  /**
   * Default dependency name.
   */
  String DEFAULT_NAME = "default";

  /**
   *    
   *  @Inject          
   * @param o 
   */
  void inject(Object o);

  /**
   *    
   */
  <T> T inject(Class<T> implementation);

  /**
   *      bean
   */
  <T> T getInstance(Class<T> type, String name);

  /**
   *    bean   
   */
  <T> T getInstance(Class<T> type);
  
  /**
   *     bean    
   */
  Set<String> getInstanceNames(Class<?> type);

  /**
   * Sets the scope strategy for the current thread.
   */
  void setScopeStrategy(Scope.Strategy scopeStrategy);

  /**
   * Removes the scope strategy for the current thread.
   */
  void removeScopeStrategy();
}

コンテナの実装クラス

class ContainerImpl implements Container {
}

コンテナの作成はContainerBuilder createメソッドで行います

	public Container create(boolean loadSingletons) {
		ensureNotCreated();
		created = true;
		//factories   bean    
		//ContainerImpl factories  factoryNamesByType
		final ContainerImpl container = new ContainerImpl(new HashMap<Key<?>, InternalFactory<?>>(factories));
		if (loadSingletons) {
			container.callInContext(new ContainerImpl.ContextualCallable<Void>() {
				public Void call(InternalContext context) {
					for (InternalFactory<?> factory : singletonFactories) {
						factory.create(context);
					}
					return null;
				}
			});
		}
		// xml  bean   static  true   false
		//com.opensymphony.xwork2.config.providers.XmlConfigurationProvider#register() line 210
		container.injectStatics(staticInjections);
		return container;
	}