diff options
Diffstat (limited to 'sca-java-1.x/tags/1.3.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java')
-rw-r--r-- | sca-java-1.x/tags/1.3.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.3.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java b/sca-java-1.x/tags/1.3.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java new file mode 100644 index 0000000000..7d2a9c3d2d --- /dev/null +++ b/sca-java-1.x/tags/1.3.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java @@ -0,0 +1,64 @@ +/* + * 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); +} |