From 23297fa3b1f66d74325c8352cb8f5aae599a3090 Mon Sep 17 00:00:00 2001 From: antelder Date: Mon, 11 Aug 2008 07:29:53 +0000 Subject: Start branch for 1.3.1, the only changes in this commit are for the version git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@684661 13f79535-47bb-0310-9956-ffa450edef68 --- .../main/java/org/osoa/sca/ComponentContext.java | 109 +++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 branches/sca-java-1.3.1/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java (limited to 'branches/sca-java-1.3.1/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java') diff --git a/branches/sca-java-1.3.1/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java b/branches/sca-java-1.3.1/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java new file mode 100644 index 0000000000..616d4c6338 --- /dev/null +++ b/branches/sca-java-1.3.1/modules/sca-api/src/main/java/org/osoa/sca/ComponentContext.java @@ -0,0 +1,109 @@ +/* + * 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; + +/** + * Interface providing programmatic access to a component's SCA context as an alternative to injection. + * It provides access to reference and property values for the component and provides a mechanism for + * obtaining a reference to a service that can be passed to other components. + *

+ * SCA components obtain an instance of this interface through injection. Non-SCA client code may also + * obtain an instance through runtime-specific mechanisms. + * + * @version $Rev$ $Date$ + */ +public interface ComponentContext { + /** + * Returns the absolute URI of the component within the SCA Domain. + * + * @return the absolute URI of the component + */ + String getURI(); + + /** + * Cast a type-safe reference to a CallableReference. + * Converts a type-safe reference to an equivalent CallableReference; if the target refers to a service + * then a ServiceReference will be returned, if the target refers to a callback then a CallableReference + * will be returned. + * + * @param target a reference proxy provided by the SCA runtime + * @param the Java type of the business interface for the reference + * @param the type of reference to be returned + * @return a CallableReference equivalent for the proxy + * @throws IllegalArgumentException if the supplied instance is not a reference supplied by the SCA runtime + */ + > R cast(B target) throws IllegalArgumentException; + + /** + * Returns a proxy for a reference defined by this component. + * + * @param businessInterface the interface that will be used to invoke the service + * @param referenceName the name of the reference + * @param the Java type of the business interface for the reference + * @return an object that implements the business interface + */ + B getService(Class businessInterface, String referenceName); + + /** + * Returns a ServiceReference for a reference defined by this component. + * + * @param businessInterface the interface that will be used to invoke the service + * @param referenceName the name of the reference + * @param the Java type of the business interface for the reference + * @return a ServiceReference for the designated reference + */ + ServiceReference getServiceReference(Class businessInterface, String referenceName); + + /** + * Returns the value of an SCA property defined by this component. + * + * @param type the Java type to be returned for the property + * @param propertyName the name of the property whose value should be returned + * @param the Java type of the property + * @return the property value + */ + B getProperty(Class type, String propertyName); + + /** + * Returns a ServiceReference that can be used to invoke this component over the default service. + * + * @param businessInterface the interface that will be used to invoke the service + * @param the Java type of the business interface for the reference + * @return a ServiceReference that will invoke this component + */ + ServiceReference createSelfReference(Class businessInterface); + + /** + * Returns a ServiceReference that can be used to invoke this component over the designated service. + * + * @param businessInterface the interface that will be used to invoke the service + * @param serviceName the name of the service to invoke + * @param the Java type of the business interface for the reference + * @return a ServiceReference that will invoke this component + */ + ServiceReference createSelfReference(Class businessInterface, String serviceName); + + /** + * Returns the context for the current SCA service request, or null if there is no current request + * or if the context is unavailable. + * + * @return the SCA request context; may be null + */ + RequestContext getRequestContext(); +} -- cgit v1.2.3