1 files changed, 81 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/TransformerExtensionPoint.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/TransformerExtensionPoint.java
new file mode 100644
index 0000000000..ee7efe4860
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/TransformerExtensionPoint.java
@@ -0,0 +1,81 @@
+/*
+ * 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.List;
+
+/**
+ * An extension point for data transformer extensions.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface TransformerExtensionPoint {
+
+    /**
+     * Register a transformer
+     * 
+     * @param sourceDataBinding
+     * @param targetDataBinding
+     * @param weight
+     * @param transformer
+     * @param publicTransformer TODO
+     */
+    void addTransformer(String sourceDataBinding,
+                        String targetDataBinding,
+                        int weight,
+                        Transformer transformer,
+                        boolean publicTransformer);
+
+    /**
+     * Register a transformer
+     * 
+     * @param transformer
+     * @param publicTransformer TODO
+     */
+    void addTransformer(Transformer transformer, boolean publicTransformer);
+
+    /**
+     * Unregister a transformer
+     * 
+     * @param sourceDataBinding
+     * @param targetDataBinding
+     * @return
+     */
+    boolean removeTransformer(String sourceDataBinding, String targetDataBinding);
+
+    /**
+     * Get the direct Transformer which can transform data from source type to
+     * result type
+     * 
+     * @param sourceDataBinding
+     * @param targetDataBinding
+     * @return
+     */
+    Transformer getTransformer(String sourceDataBinding, String targetDataBinding);
+
+    /**
+     * Get the a chain of Transformers which can transform data from source type
+     * to result type
+     * 
+     * @param sourceDataBinding
+     * @param targetDataBinding
+     * @return
+     */
+    List<Transformer> getTransformerChain(String sourceDataBinding, String targetDataBinding);
+}