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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.extension.helper;
import org.apache.tuscany.sca.assembly.ComponentType;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
/**
* An ImplementationActivator adds an SCA implementation type to the Tuscany runtime.
*
* The SCDL XML used for the implementation is derived from the name of the
* class returned from the getImplementationClass method - the package name and
* any trailing "Implementation" string is removed, leading upper case characters
* are converted to lowercase, and the suffix "implementation." is added. For
* example if getImplementationClass returns a class named "mypkg.FooImplementation"
* then the SCDL for the implementation will be <implementation.foo>.
*
* Attributes of the <implementation.foo> SCDL are based on the getters/setters of
* the Implementation class. So if FooImplementation had getBar/setBar then there
* would be an attribute name 'bar', for example, <implementation.foo bar="xxx">.
*
* BindingActivator implementations may use constructor arguments to have
* Tuscany ExtensionPointRegistry objects passed in on their constructor.
* For example:
*
* public class MyImplementationActivator implements ImplementationActivator {
* ServletHost servletHost;
* public MyImplementationActivator(ServletHost servletHost) {
* this.servletHost = servletHost;
* }
* ...
* }
*
* ImplementationActivator implementations are discovered by the Tuscany runtime
* using the J2SE jar file extensions for service provider discovery. All
* that means is packaging the new binding type in a jar which contains a
* file META-INF/services/org.apache.tuscany.sca.extension.helper.ImplementationActivator and
* that file lists the ImplementationActivator implementation class name.
*
* @version $Rev$ $Date$
*/
public interface ImplementationActivator<T> {
Class<T> getImplementationClass();
InvokerFactory createInvokerFactory(RuntimeComponent rc, ComponentType ct, T implementation);
}
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