--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/dancres/blitz/ActiveObject.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,19 @@
+package org.dancres.blitz;
+
+/**
+   Various things in the space implementation require the use of threads
+   which need to be started up and shutdown in a co-ordinated fashion.
+   Such things should implement this interface and register with
+   ActiveObjectRegistry.
+*/
+public interface ActiveObject {
+    /**
+       Instructs this instance to startup/activate threads
+     */
+    public void begin();
+
+    /**
+       Instructs this instance to stop/de-activate threads
+     */
+    public void halt();
+}