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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.apache.tuscany.sca.core;
/**
* ModuleActivator represents a module that plugs into the Tuscany system. Each
* module should provide an implementation of this interface and register the
* ModuleActivator implementation class by defining a file named
*
* "META-INF/services/org.apache.tuscany.core.ModuleActivator"
*
* The content of the file is the class name of the ModuleActivator implementation.
* The implementation class can have different flavors of constructors. The following
* order will be searched:
* <ul>
* <li>(ExtensionRegistry.class)
* <li>(ExtensionRegistry.class, Map.class)
* <li>()
* </ul>
*
*
*
*
* The same instance
* will be used to invoke all the methods during different phases of the module
* activation. Note that the start and stop methods defined by this interface
* take a reference to the Tuscany SCA runtime ExtensionPointRegistry. This
* gives the ModuleActivator the opportunity to add extension points to the
* registry as it is requested to start up and remove them when it is requested
* to shut down.
*
* @version $Rev$ $Date$
* @tuscany.spi.extension.inheritfrom
*/
public interface ModuleActivator extends LifeCycleListener {
/**
* This method is invoked when the module is started by the Tuscany runtime.
* It can be used by this module to register extensions against extension
* points.
*
* @param registry The extension point registry
*/
void start();
/**
* This method is invoked when the module is stopped by the Tuscany runtime.
* It can be used by this module to unregister extensions against the
* extension points.
*
* @param registry The extension point registry
*/
void stop();
}
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