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/*
* 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.
*/
package org.osoa.sca;
/**
* Common superclass for references that can be passed between components.
*
* @version $Rev$ $Date$
* @param <B> the Java interface associated with this reference
*/
public interface CallableReference<B> {
/**
* Returns a type-safe reference to the target of this reference.
* The instance returned is guaranteed to implement the business interface for this reference
* but may not be a proxy as defined by java.lang.reflect.Proxy.
*
* @return a proxy to the target that implements the business interface associated with this reference
*/
B getService();
/**
* Returns the Java class for the business interface associated with this reference.
*
* @return the Class for the business interface associated with this reference
*/
Class<B> getBusinessInterface();
/**
* Returns true if this reference is conversational.
*
* @return true if this reference is conversational
*/
boolean isConversational();
/**
* Returns the conversation associated with this reference.
* Returns null if no conversation is currently active.
*
* @return the conversation associated with this reference; may be null
*/
Conversation getConversation();
/**
* Returns the callback ID.
*
* @return the callback ID
*/
Object getCallbackID();
}
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