/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

/* $Rev$ $Date$ */

#ifndef tuscany_sca_model_compositereferencetype_h
#define tuscany_sca_model_compositereferencetype_h

#include <string>

#include "tuscany/sca/model/Component.h"
#include "tuscany/sca/model/ReferenceType.h"

namespace tuscany
{
    namespace sca
    {

        namespace model
        {
            class ComponentType;
            class Composite;
            class Interface;
            class Service;

            /**
             * Represents a reference in a composite.
             * Composite references represent dependencies that the composite has on services provided elsewhere,
             * outside the composite.
             */
            class CompositeReference : public Component
            {
            public:

                /**
                 * Constructor.
                 * @param name The name of the reference.
                 */
                SCA_API CompositeReference(Composite* composite, const string& name,
                    Interface* intface, Interface* callbackInterface, bool conversational, ReferenceType::Multiplicity multiplicity);

                /**
                 * Destructor.
                 */
                SCA_API virtual ~CompositeReference();
                
                /**
                 * Returns the service exposed by this composite reference.
                 * @return The service exposed by this composite reference.
                 */
                SCA_API Service* getService() const { return service; };

            private:
            
                /**
                 * The service exposed by this composite reference.
                 */
                Service* service;

            };
        } // End namespace model
    } // End namespace sca
} // End namespace tuscany

#endif // tuscany_sca_model_compositereferencetype_h