X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fcore%2FRequiredInterface.java;h=4dd77fc7dad510dcbc062eaab20a402008de627f;hb=680cb4c2d0b10909a2cdd3e7f73d8998a74441c1;hp=0fea736057bbc32849ef977004a91520b7a3f2ff;hpb=ebb4c1d01787f66e5dc2dd73780663b950122334;p=utils

diff --git a/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java b/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java
index 0fea7360..4dd77fc7 100644
--- a/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java
+++ b/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java
@@ -15,12 +15,13 @@
  */ 
 package org.wamblee.system.core;
 
-public interface RequiredInterface {
-
+public interface RequiredInterface extends NamedInterface {
+	
 	/**
-	 * Name for the interface. 
+	 * @return True iff the required interface is optional. 
 	 */
-	public String getName(); 
+	boolean isOptional(); 
+	
 	
 	/**
 	 * Checks if the service is provided by a given provided interface. 
@@ -36,16 +37,14 @@ public interface RequiredInterface {
 	void setProvider(ProvidedInterface aProvider);
 	
 	/**
-	 * Getst the provider interface. 
+	 * Gets the provider interface. 
 	 * @return Provider or null if not set. 
 	 */
-	ProvidedInterface getProvider(); 
+	ProvidedInterface getProvider();
 	
 	/**
-	 * Gets the implementation of the required interface. 
-	 * @param <T>
-	 * @param aClass Interface type. 
-	 * @return Interface implementation or null if not known yet. 
+	 * Determines if the requirements of the current interface are at least those
+	 * of the given required interface. 
 	 */
-	<T> T getImplementation(Class<T> aClass); 
+	boolean covers(RequiredInterface aInterface); 
 }