Registry-aware components

The RegistryAware interface can be implemented in order to let the
component know of the registry it is being bound to.

src/main/java/info/ebenoit/ebul/cmp/ComponentState.java

@@ -74,6 +74,9 @@ public final class ComponentState
 				throw new ComponentCreationException( e.getCause( ) );
 			}
 		}
+		if ( component instanceof RegistryAware ) {
+			( (RegistryAware) component ).setComponentRegistry( registry );
+		}
 		this.component = component;
 
 		String name;

src/main/java/info/ebenoit/ebul/cmp/RegistryAware.java

@@ -0,0 +1,22 @@
+package info.ebenoit.ebul.cmp;
+
+
+/**
+ * Interface for registry-aware components
+ * <p>
+ * This interface can be implemented by a component that is aware of the component registry it is bound to.
+ *
+ * @author <a href="mailto:ebenoit@ebenoit.info">E. Benoît</a>
+ */
+public interface RegistryAware
+{
+
+	/**
+	 * Sets the component registry
+	 * 
+	 * @param registry
+	 *            the registry if the component is being bound, or <code>null</code> if the component is being detached.
+	 */
+	public void setComponentRegistry( ComponentRegistry registry );
+
+}