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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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 org.osoa.sca;
/**
* Interface that can be used by SCA Components to access information about the
* Module that contains them.
*
* @version $Rev$ $Date$
*/
public interface ModuleContext {
/**
* Returns the name of the module.
*
* @return the name of the module
*/
String getName();
/**
* Returns the absolute URI of the module component.
*
* @return the absolute URI of the module component
*/
String getURI();
//FIXME This is not implemented yet, we need the SCA spec to define the metadata model first.
// /**
// * Returns the Module metadata object.
// * This represents the root <module> element in the SCA module definition.
// *
// * @return the module metadata object
// */
// Module getMetaData();
/**
* Returns the request context that corresponds to the last remotable service invocation.
* If this is invoked from outside an SCA component then <tt>null</tt> is returned.
*
* @return the current request context
*/
RequestContext getRequestContext();
/**
* Returns an object implementing the interface defined for the named service.
*
* @param serviceName the name of another service in the current module
* @return an object that implements the service's interface
*/
Object locateService(String serviceName);
/**
* Create a reference to the supplied component.
* The component must define only one service.
*
* @param self the component to be referenced
* @return a reference to the component
*/
ServiceReference createServiceReferenceForSession(Object self);
/**
* Create a reference to the named service implemented by the supplied component.
*
* @param self the component to be referenced
* @param serviceName the service to be referenced
* @return a reference to the service
*/
ServiceReference createServiceReferenceForSession(Object self, String serviceName);
/**
* Create a new session for stateful interaction with the named service.
*
* @param serviceName the name of the service to interact with
* @return a reference to the service
*/
ServiceReference newSession(String serviceName);
/**
* Create a new session for stateful interaction with the named service
* using an application-supplied session identifier.
*
* @param serviceName the name of the service to interact with
* @param sessionId a token that identifies this session
* @return a reference to the service
*/
ServiceReference newSession(String serviceName, Object sessionId);
}
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