|
public TryGet ( |
||
| db | Database. | |
| key | byte | Key byte array. |
| value | byte | Value byte array if exists. |
| return | bool | |
public bool TryGet(LightningDatabase db, byte[] key, out byte[] value)
{
if (db == null)
throw new ArgumentNullException(nameof(db));
return mdb_get(_handle, db.Handle(), key, out value) != MDB_NOTFOUND;
}
public static bool TryGetBy <TKey>(this LightningTransaction txn, LightningDatabase db, TKey key, out GetByOperation value)
{
byte[] valueBytes;
var keyBytes = db.ToBytes(key);
var result = txn.TryGet(db, keyBytes, out valueBytes);
value = result
? new GetByOperation(db, valueBytes)
: null;
return(result);
}
