public void Put <TK, TV>(TK key, TV value, WriteOptions options, Func <TK, byte[]> keyEncoder, Func <TV, byte[]> valueEncoder)
{
if (null == keyEncoder)
{
throw new ArgumentNullException(nameof(keyEncoder));
}
if (null == valueEncoder)
{
throw new ArgumentNullException(nameof(valueEncoder));
}
var realKey = keyEncoder(key);
if (null == realKey)
{
throw new ArgumentNullException(nameof(realKey));
}
var realValue = valueEncoder(value);
if (null == realValue)
{
_LevelDb.Delete(options, Slice.FromByteArray(realKey));
return;
}
_LevelDb.Put(options, Slice.FromByteArray(realKey), Slice.FromByteArray(realValue));
}
public void Delete <TK>(TK key, WriteOptions options, Func <TK, byte[]> keyEncoder)
{
var realKey = keyEncoder(key);
if (null == realKey)
{
throw new ArgumentNullException(nameof(realKey));
}
_LevelDb.Delete(options, Slice.FromByteArray(realKey));
}
public TV Get <TK, TV>(TK key, ReadOptions options, Func <TK, byte[]> keyEncoder, Func <byte[], TV> valueDecoder)
{
if (null == keyEncoder)
{
throw new ArgumentNullException(nameof(keyEncoder));
}
if (null == valueDecoder)
{
throw new ArgumentNullException(nameof(valueDecoder));
}
var realKey = keyEncoder(key);
if (null == realKey)
{
throw new ArgumentNullException(nameof(realKey));
}
var realValue = _LevelDb.Get(options, Slice.FromByteArray(realKey));
var value = valueDecoder(realValue?.ToByteArray());
return(value);
}
