/** Close this store. */
public void close() {
try {
if (fileLock != null) {
fileLock.release();
fileLock = null;
}
file.close();
freeSpace.clear();
} catch (Exception e) {
throw DataUtils.newIllegalStateException(
DataUtils.ERROR_WRITING_FAILED, "Closing failed for file {0}", fileName, e);
} finally {
file = null;
}
}
/** Mark the file as empty. */
public void clear() {
freeSpace.clear();
}