X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fcore%2FProvidedInterface.java;h=1b6b921d89580329b2afb829fac11b7f5898e026;hb=8de36ff0206c996baf3ee4adc3e2293b12ff5f39;hp=349197d0f2b8a450ee39ea5e21a6c4dfc10f2ffa;hpb=4845c677310814de4c98e22aad483e49b9dfc594;p=utils

diff --git a/system/general/src/main/java/org/wamblee/system/core/ProvidedInterface.java b/system/general/src/main/java/org/wamblee/system/core/ProvidedInterface.java
index 349197d0..1b6b921d 100644
--- a/system/general/src/main/java/org/wamblee/system/core/ProvidedInterface.java
+++ b/system/general/src/main/java/org/wamblee/system/core/ProvidedInterface.java
@@ -1,50 +1,46 @@
 /*
  * Copyright 2007 the original author or authors.
- * 
+ *
  * Licensed 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.wamblee.system.core;
 
 import java.util.Collection;
 
 /**
- * Represents an interface provided by a component.
- *  
+ * Represents an interface provided by a component. Different component objects
+ * should never share ProvidedInterface instances!
+ * 
  * @author Erik Brakkee
  */
-public interface ProvidedInterface {
-    
-	/**
-	 * Symbolic name for the service as used by the subsystem.  
-	 * @return Service name. 
-	 */
-	String getName();
-	
-	/**
-	 * Returns the service type. 
-	 * @return Service type. 
-	 */
-	Class[] getInterfaceTypes();
-	
-	/**
-	 * Publish an implementation of the interface. 
-	 * @param aImplementation
-	 */
-	void publish(Object aImplementation); 
-	
-	/**
-	 * Gets the implementation. 
-	 * @return Implementation or null if not started. 
-	 */
-	Object getImplementation(); 
+public interface ProvidedInterface extends NamedInterface {
+    /**
+     * Returns the service type.
+     * 
+     * @return Service type.
+     */
+    Class[] getInterfaceTypes();
+
+    /**
+     * Determines whether the current provided interface exceeds the given
+     * provided interface. In other words if it can provide at least what the
+     * given provided interface can provide.
+     * 
+     * @param aInterface
+     *            Interface to compare to.
+     * 
+     * @return True if the current interface exceeds the given provided
+     *         interface.
+     */
+    boolean covers(ProvidedInterface aInterface);
 }