1 files changed, 60 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/0.99-incubating/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider2.java b/sca-java-1.x/tags/0.99-incubating/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider2.java
new file mode 100644
index 0000000000..39c1da78a0
--- /dev/null
+++ b/sca-java-1.x/tags/0.99-incubating/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider2.java
@@ -0,0 +1,60 @@
+/*
+ * 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.provider;
+
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+
+/**
+ * A reference binding implementation can optionally implement this
+ * interface to tie into the Tuscany SCA runtime and support
+ * asynchronous invocation.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ReferenceBindingProvider2 extends ReferenceBindingProvider {
+
+    /**
+     * Create an invoker for the reference binding in the invocation chain. The
+     * invoker is responsible for making the outbound invocation over the
+     * binding protocol.
+     * 
+     * @param operation The operation that the interceptor will handle
+     * @return An invoker that handles the invocation logic, null should be
+     *         returned if no invoker is required
+     */
+    Invoker createInvoker(Operation operation);
+
+    /**
+     * @deprecated This method has been replaced by createInvoker(Operation).
+     */
+    @Deprecated
+    Invoker createInvoker(Operation operation, boolean isCallback);
+
+    /**
+     * For bindings that invoke one-way operations asynchronously, there is no
+     * need to perform a thread switch before calling the invoker. This method
+     * indicates whether the binding has this capability.
+     * 
+     * @return true if the binding invoker is able to invoke one-way operations
+     *         asynchronously, false if all invocations are synchronous
+     */
+    boolean supportsAsyncOneWayInvocation();
+}