@Override
void open0(WriteableTransaction txn) throws StorageRuntimeException {
// Make sure the tree is there and readable, even if the storage is READ_ONLY.
// Would be nice if there were a better way...
try (final Cursor<ByteString, ByteString> cursor = txn.openCursor(getName())) {
cursor.next();
}
}
@Override
public boolean next() {
clearCache();
return input.next();
}