GeomConverter/src/org/lcsim/geometry/util

diff -u -r1.9 -r1.10
--- BaseIDDecoder.java	15 Mar 2006 23:47:33 -0000	1.9
+++ BaseIDDecoder.java	12 Apr 2007 23:41:03 -0000	1.10
@@ -184,14 +184,14 @@

 
     public int getSystemID()
     {

-        int idx = descriptor.indexOf("system");

         int sysid = -1;

-        if (idx != INVALID_INDEX)

+        if ( getSubdetector() != null )

         {

-            sysid = decoder.getValue("system");

+            sysid = getSubdetector().getSystemID();

         }

-        else {
-            throw new RuntimeException("IDDecoder is missing system field.");

+        else 
+        {
+            sysid = decoder.getValue("system");

         }
         return sysid;
     }