/**
* Check that a record entry exists in the entry tree.
*
* @param txn a non null transaction
* @param entryID The entry ID which forms the key.
* @return True if an entry with entryID exists
* @throws StorageRuntimeException If an error occurs in the storage.
*/
public boolean containsEntryID(ReadableTransaction txn, EntryID entryID) {
checkNotNull(txn, "txn must not be null");
checkNotNull(entryID, "entryID must not be null");
try (final Cursor<ByteString, ByteString> cursor = txn.openCursor(getName())) {
return cursor.positionToKey(entryID.toByteString());
}
}
@Override
public boolean positionToKey(final ByteSequence key) {
clearCache();
return input.positionToKey(key);
}