1 files changed, 62 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java
new file mode 100644
index 0000000000..f8a1ef4d23
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java
@@ -0,0 +1,62 @@
+/*
+ * 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.work;
+
+import java.util.concurrent.ExecutorService;
+
+/**
+ * Defines the contract for scheduling asynchronous units of work.
+ *
+ * <p>
+ * Units of work can be scheduled with an optional <code>NotificationListener</code>.
+ * If a notification listener is specified, the caller will be notified regarding the
+ * status of the work. The unit of work can either be completed, rejected or completed
+ * with an error. If the work completed with an error, the caller is notified with the
+ * error details.
+ * </p>
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface WorkScheduler {
+
+    /**
+     * Schedules a unit of work for future execution. The notification listener
+     * is used to register interest in callbacks regarding the status of the work.
+     *
+     * @param work The unit of work that needs to be asynchronously executed.
+     * @param listener Notification listener for callbacks.
+     */
+    <T extends Runnable>void scheduleWork(T work, NotificationListener<T> listener);
+
+    /**
+     * Schedules a unit of work for future execution. The notification listener
+     * is used to register interest in callbacks regarding the status of the work.
+     *
+     * @param work The unit of work that needs to be asynchronously executed.
+     */
+    <T extends Runnable>void scheduleWork(T work);
+    
+    /**
+     * Get the underlying getExecutorService
+     * @return
+     */
+    ExecutorService getExecutorService();
+
+}