return myHandler != null ? myHandler.handleDiffWindow(path, diffWindow) : null;
return myHandler != null ? myHandler.textDeltaChunk(path, diffWindow) : null;
        public OutputStream textDeltaChunk(String path, SVNDiffWindow diffWindow) throws SVNException {            return myHandler != null ? myHandler.handleDiffWindow(path, diffWindow) : null;        }