From 47044992b49585aab7b54bc02a46cb1ab46eb50e Mon Sep 17 00:00:00 2001
From: rfeng <rfeng@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 5 Mar 2009 01:19:16 +0000
Subject: Add nonOverridable flag as defined by the oasis spec

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@750272 13f79535-47bb-0310-9956-ffa450edef68
---
 .../tuscany/sca/assembly/ComponentReference.java   | 33 ++++++++++++++++++++++
 .../sca/assembly/impl/ComponentReferenceImpl.java  |  9 ++++++
 2 files changed, 42 insertions(+)

(limited to 'java/sca')

diff --git a/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java b/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java
index ce40bc089b..67c1ec1409 100644
--- a/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java
+++ b/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java
@@ -73,6 +73,39 @@ public interface ComponentReference extends Reference {
      */
     void setCallbackService(ComponentService callbackService);
     
+    /**
+     * A boolean value, "false" by default, which indicates whether this component reference 
+     * can have its targets overridden by a composite reference which promotes the 
+     * component reference.
+     * 
+     *  If @nonOverridable==false, the target(s) of the promoting composite reference 
+     *  replace all the targets explicitly declared on the component reference for any 
+     *  value of @multiplicity on the component reference. 
+     *  
+     *  If the component reference has @nonOverridable==false and @multiplicity 1..1 
+     *  and the reference has a target, then any composite reference which promotes 
+     *  the component reference has @multiplicity 0..1.by default and MAY have an explicit @multiplicity of either 
+     *  0..1 or 1..1. 
+     *  
+     *  If @nonOverridable==true, and the component reference has @multiplicity 0..1 or 
+     *  1..1 and the component reference also declares a target, promotion implies 
+     *  that the promoting composite reference has @wiredbyImpl==true and the composite 
+     *  reference cannot supply a target, but can influence the policy attached to the 
+     *  component reference.
+     *  
+     *  If @nonOverridable==true, and the component reference @multiplicity is 0..n 
+     *  or 1..n, promotion targeting is additive 
+     *  
+     *  @return
+     */
+    boolean isNonOverridable();
+    
+    /**
+     * Set the nonOverridable flag
+     * @param nonOverridable
+     */
+    void setNonOverridable(boolean nonOverridable);
+    
     /**
      * Returns the endpoints implied by this reference.
      * 
diff --git a/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java b/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java
index 488023090c..9a90d7aaea 100644
--- a/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java
+++ b/java/sca/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java
@@ -38,6 +38,7 @@ import org.apache.tuscany.sca.interfacedef.InterfaceContract;
 public class ComponentReferenceImpl extends ReferenceImpl implements ComponentReference, Cloneable {
     private Reference reference;
     private Boolean autowire;
+    private boolean nonOverridable;
     private List<CompositeReference> promotedAs = new ArrayList<CompositeReference>();
     private ComponentService callbackService;
     private List<Endpoint> endpoints = new ArrayList<Endpoint>();
@@ -109,5 +110,13 @@ public class ComponentReferenceImpl extends ReferenceImpl implements ComponentRe
             interfaceContract = getInterfaceContract();
         }
         return interfaceContract;
+    }
+
+    public boolean isNonOverridable() {
+        return nonOverridable;
+    }
+
+    public void setNonOverridable(boolean nonOverridable) {
+        this.nonOverridable = nonOverridable;
     } 
 }
-- 
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