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diff --git a/sandbox/axis2-1.4/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/Mediator.java b/sandbox/axis2-1.4/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/Mediator.java
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+++ b/sandbox/axis2-1.4/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/Mediator.java
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+/*
+ * 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.databinding;
+
+import java.util.Map;
+
+import org.apache.tuscany.sca.interfacedef.DataType;
+
+/**
+ * This interface will be used as a Tuscany system service to perform data mediations
+ * 
+ * Mediate the data from one type to the other one
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Mediator {
+
+    /**
+     * Mediate the data from the source type to the target type
+     * @param source The data to be mediated
+     * @param sourceDataType Data type for the source data
+     * @param targetDataType Data type for the target data
+     * @param context 
+     * @return
+     */
+    Object mediate(Object source, DataType sourceDataType, DataType targetDataType, Map<String, Object> context);
+    /**
+     * Mediate the source data into the target which is a sink to receive the data
+     * @param source The data to be mediated
+     * @param target The sink to receive data
+     * @param sourceDataType Data type for the source data
+     * @param targetDataType Data type for the target data
+     */
+    void mediate(
+            Object source,
+            Object target,
+            DataType sourceDataType,
+            DataType targetDataType,
+            Map<String, Object> context);
+    
+    /**
+     * Get the DataBindings used by this mediator.
+     * @return
+     */
+    DataBindingExtensionPoint getDataBindings();
+    
+    /**
+     * Get the Transformers used by this mediator.
+     * @return
+     */
+    TransformerExtensionPoint getTransformers();    
+}