1 files changed, 60 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/invocation/Phase.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Phase.java
new file mode 100644
index 0000000000..4f81b763c7
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Phase.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.invocation;
+
+/**
+ * Tuscany built-in phases for the invocation chain. The phases are organized
+ * here such that a message passing from reference component implementation to
+ * service component implementation passes through the phases from top to bottom
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public interface Phase {
+    
+    // Reference operation chains
+    
+    String REFERENCE = "component.reference"; // The first phase for outgoing invocations via a reference
+    String REFERENCE_INTERFACE = "reference.interface"; // data transformation and validation
+    String REFERENCE_POLICY = "reference.policy"; // reference policy handling    
+    String REFERENCE_BINDING = "reference.binding"; // reference binding invoker
+    
+    // Reference binding chain
+
+    String REFERENCE_BINDING_WIREFORMAT = "reference.binding.wireformat";
+    String REFERENCE_BINDING_POLICY = "reference.binding.policy";
+    String REFERENCE_BINDING_TRANSPORT = "reference.binding.transport";
+
+    // Service binding chain
+    
+    String SERVICE_BINDING_TRANSPORT = "service.binding.transport";
+    String SERVICE_BINDING_OPERATION_SELECTOR = "service.binding.operationselector";
+    String SERVICE_BINDING_WIREFORMAT = "service.binding.wireformat";
+    String SERVICE_BINDING_POLICY = "service.binding.policy";
+    
+    // Service operation chains
+    
+    String SERVICE_BINDING = "service.binding"; // The first phase for incoming invocations via a service
+    String SERVICE_INTERFACE = "service.interface"; // data validation and transformation
+    String SERVICE_POLICY = "service.policy"; // service policy handling
+    String SERVICE = "component.service"; // TODO: not sure if we need to have this phase
+    String IMPLEMENTATION_POLICY = "implementation.policy"; // implementation policy handling
+    String IMPLEMENTATION = "component.implementation"; // implementation invoker
+}