X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fcore%2FRequiredInterface.java;h=74c132e02aa7532cde7ec98e982b5be58c82573f;hb=ad6e06e3c1ba0c4ae0dea100596b1c5503bfe1c6;hp=ce8d084cdbaa2b11fcd25c65c7c194a871f64b1a;hpb=bb66d188e89338f718e7446bb91d8182cd2203fe;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 ce8d084c..74c132e0 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
@@ -20,7 +20,13 @@ public interface RequiredInterface {
 	/**
 	 * Name for the interface. 
 	 */
-	public String getName(); 
+	String getName();
+	
+	/**
+	 * @return True iff the required interface is optional. 
+	 */
+	boolean isOptional(); 
+	
 	
 	/**
 	 * Checks if the service is provided by a given provided interface. 
@@ -39,13 +45,11 @@ public interface RequiredInterface {
 	 * 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); 
 }