lcsim/test/org/lcsim

diff -u -r1.1 -r1.2
--- ReferenceIOTest.java	9 Oct 2007 22:56:23 -0000	1.1
+++ ReferenceIOTest.java	24 Oct 2007 16:11:34 -0000	1.2
@@ -64,7 +64,9 @@

                half.add(particle);
             }
          }

-         event.put("SomeParticles",half,MCParticle.class,LCIOUtil.bitMask(LCIOConstants.BITSubset));

+         //event.put("SomeParticles",half,MCParticle.class,LCIOUtil.bitMask(LCIOConstants.BITSubset));
+         event.put("SomeParticles",half);
+         event.getMetaData(half).setSubset(true);

       }
    }
    class TestReferenceDriver extends Driver

lcsim/src/org/lcsim/util/event

diff -u -r1.23 -r1.24
--- BaseLCSimEvent.java	11 Sep 2007 00:21:03 -0000	1.23
+++ BaseLCSimEvent.java	24 Oct 2007 16:11:35 -0000	1.24
@@ -23,6 +23,8 @@

 import org.lcsim.geometry.IDDecoder;
 import org.lcsim.geometry.util.BaseIDDecoder;
 import org.lcsim.geometry.util.IDDescriptor;

+import org.lcsim.util.lcio.LCIOConstants;
+import org.lcsim.util.lcio.LCIOUtil;

 
 /**
  * A base implementation for EventHeader

@@ -333,5 +335,25 @@

       {
          return BaseLCSimEvent.this;
       }

+
+      public void setSubset(boolean isSubset)
+      {
+         LCIOUtil.bitSet(flags,LCIOConstants.BITSubset,isSubset);
+      }
+
+      public boolean isSubset()
+      {
+         return LCIOUtil.bitTest(flags,LCIOConstants.BITSubset);
+      }
+
+      public void setTransient(boolean isTransient)
+      {
+         LCIOUtil.bitSet(flags,LCIOConstants.BITTransient,isTransient);
+      }
+
+      public boolean isTransient()
+      {
+         return LCIOUtil.bitTest(flags,LCIOConstants.BITTransient);
+      }

    }
 }

lcsim/src/org/lcsim/event

diff -u -r1.16 -r1.17
--- EventHeader.java	6 Aug 2007 22:15:18 -0000	1.16
+++ EventHeader.java	24 Oct 2007 16:11:35 -0000	1.17
@@ -10,7 +10,7 @@

  * The event header from which information about the rest of the event
  * can be obtained.
  * @author Tony Johnson

- * @version $Id: EventHeader.java,v 1.16 2007/08/06 22:15:18 tonyj Exp $

+ * @version $Id: EventHeader.java,v 1.17 2007/10/24 16:11:35 tonyj Exp $

  */
 public interface EventHeader extends MCEvent
 {

@@ -133,6 +133,22 @@

       Map<String,float[]> getFloatParameters();
       Map<String,String[]> getStringParameters();
       

+      /** Get the event with which this meta-data is associated. */

       EventHeader getEvent();

+      /**
+       * Flag whether the collection associated with this meta-data is a subset
+       * of some other collection. When flagged in this way the collection will be
+       * written to an LCIO file as a reference collection, ie as a set of pointers
+       * to objects in the master collection.
+       */
+      void setSubset(boolean isSubset);
+      boolean isSubset();
+      /** 
+       * Flag whether the collection associated with this meta-data should be 
+       * treated as transient. Transient collections are never written out to
+       * LCIO files.
+       */
+      void setTransient(boolean isTransient);
+      boolean isTransient();

    }
 }