1 files changed, 55 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java b/tags/java/sca/1.5.1/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java
new file mode 100644
index 0000000000..f209eb8936
--- /dev/null
+++ b/tags/java/sca/1.5.1/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java
@@ -0,0 +1,55 @@
+/*
+ * 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.event;
+
+/**
+ * Publishes events in the runtime by accepting {@link Event} objects and 
+ * forwarding them to all registered {@link RuntimeEventListener} objects.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface EventPublisher {
+
+    /**
+     * Publish an event to all registered listeners
+     * @param object The event to publish
+     */
+    void publish(Event object);
+
+    /**
+     * Registers a listener to receive notifications for the context
+     * @param listener The listener to add
+     */
+    void addListener(RuntimeEventListener listener);
+
+    /**
+     * Registers a listener to receive notifications for the context
+     * @param filter The filter that will be applied before the lister is called
+     * @param listener The lister to add
+     */
+    void addListener(EventFilter filter, RuntimeEventListener listener);
+
+
+    /**
+     * Removes a previously registered listener
+     * @param listener The listener to remove
+     */
+    void removeListener(RuntimeEventListener listener);
+
+}