--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/tmatesoft/hg/core/HgManifestHandler.java	Thu Mar 29 17:14:35 2012 +0200
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2011-2012 TMate Software Ltd
+ *  
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * For information on how to redistribute this software under
+ * the terms of a license other than GNU General Public License
+ * contact TMate Software at support@hg4j.com
+ */
+package org.tmatesoft.hg.core;
+
+import org.tmatesoft.hg.internal.Callback;
+import org.tmatesoft.hg.util.Path;
+
+/**
+ * Callback to walk file/directory tree of a revision
+ * 
+ * @author Artem Tikhomirov
+ * @author TMate Software Ltd.
+ */
+@Callback
+public interface HgManifestHandler {
+	/**
+	 * Indicates start of manifest revision. Subsequent {@link #file(HgFileRevision)} and {@link #dir(Path)} come 
+	 * from the specified manifest revision until {@link #end(Nodeid)} with the matching revision is invoked.
+	 * 
+	 * @param manifestRevision unique identifier of the manifest revision
+	 * @throws HgCallbackTargetException wrapper for any exception user code may produce
+	 */
+	void begin(Nodeid manifestRevision) throws HgCallbackTargetException;
+
+	/**
+	 * If walker is configured to spit out directories, indicates files from specified directories are about to be reported.
+	 * Comes prior to any files from this directory and subdirectories
+	 * 
+	 * @param path directory known in the manifest
+	 * @throws HgCallbackTargetException wrapper for any exception user code may produce
+	 */
+	void dir(Path path) throws HgCallbackTargetException; 
+
+	/**
+	 * Reports a file revision entry in the manifest
+	 * 
+	 * @param fileRevision description of the file revision
+	 * @throws HgCallbackTargetException wrapper for any exception user code may produce
+	 */
+	void file(HgFileRevision fileRevision) throws HgCallbackTargetException;
+
+	/**
+	 * Indicates all files from the manifest revision have been reported.
+	 * Closes {@link #begin(Nodeid)} with the same revision that came before.
+	 * 
+	 * @param manifestRevision unique identifier of the manifest revision 
+	 * @throws HgCallbackTargetException wrapper for any exception user code may produce
+	 */
+	void end(Nodeid manifestRevision) throws HgCallbackTargetException;
+}
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