/*
- * Copyright 2007 the original author or authors.
+ * Copyright 2005-2010 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.
*/
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);
}