--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/dancres/blitz/entry/InstanceCheckpoint.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,30 @@
+package org.dancres.blitz.entry;
+
+import java.io.Serializable;
+
+import java.util.ArrayList;
+
+/**
+   If logging of instance counts is enabled, at each checkpoint, we will lodge
+   an instance of this class as a checkpoint contribution
+ */
+class InstanceCheckpoint implements Serializable {
+    private ArrayList theCounts = new ArrayList();
+    private long theTime = System.currentTimeMillis();
+
+    void add(String aType, int aCount) {
+        theCounts.add(new CountAction(aType, aCount));
+    }
+
+    public String toString() {
+        StringBuffer myBuffer = new StringBuffer();
+
+        for (int i = 0; i < theCounts.size(); i++) {
+            CountAction myCount = (CountAction) theCounts.get(i);
+
+            myBuffer.append(theTime + " :" + myCount.toString() + "\n");
+        }
+
+        return myBuffer.toString();
+    }
+}
\ No newline at end of file