--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/prevayler/implementation/Snapshotter.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,20 @@
+package org.prevayler.implementation;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectOutputStream;
+import java.io.IOException;
+
+import org.prevayler.PrevalentSystem;
+
+/**
+   Represents a snapshot waiting to be persisted to disk.  Invoke save() to
+   place the snapshot on disk - should only be called once all dirty state
+   (if any) has been flushed to disk.
+
+   @see org.dancres.blitz.txn.TxnManager
+ */
+public interface Snapshotter {
+    public void save() throws IOException;
+}