protected boolean setNextHigher(String currentFileName) throws IOException {
LOG.debug("finding next higher for " + currentFileName);
Path nextHigherFile = fileMap.getHigherValue(currentFileName);
if (nextHigherFile != null) {
currentFile = nextHigherFile;
LOG.debug("Next higher entry:" + currentFile);
setIterator();
openCurrentFile(true);
return true;
}
return false;
}
