public override TypedArrayWrapper CreateTypedArrayWrapper(Array array, bool isNullable)
{
if (isNullable)
{
return(TypedArrayWrapper.Create <TSystemType?>(array));
}
return(TypedArrayWrapper.Create <TSystemType>(array));
}
internal Array PackDefinitions(int maxDefinitionLevel, out int[] pooledDefinitionLevels, out int definitionLevelCount)
{
pooledDefinitionLevels = ArrayPool <int> .Shared.Rent(Data.Length);
definitionLevelCount = Data.Length;
if (!Field.HasNulls)
{
SetPooledDefinitionLevels(maxDefinitionLevel, pooledDefinitionLevels);
return(Data);
}
//get count of nulls
int nullCount = 0;
bool isNullable = Field.ClrType.IsNullable() || Data.GetType().GetElementType().IsNullable();
TypedArrayWrapper typedData = _dataTypeHandler.CreateTypedArrayWrapper(Data, isNullable);
for (int i = 0; i < Data.Length; i++)
{
bool isNull = typedData.GetValue(i) == null;
if (isNull)
{
nullCount += 1;
}
}
// if the field definition said there could be nulls, but weren't, don't incur the overhead of new array allocations and item copying
if (nullCount == 0)
{
SetPooledDefinitionLevels(maxDefinitionLevel, pooledDefinitionLevels);
return(Data);
}
//pack
Array result = _dataTypeHandler.GetArray(Data.Length - nullCount, false, false);
TypedArrayWrapper typedResult = _dataTypeHandler.CreateTypedArrayWrapper(result, false);
int ir = 0;
for (int i = 0; i < Data.Length; i++)
{
object value = typedData.GetValue(i);
if (value == null)
{
pooledDefinitionLevels[i] = 0;
}
else
{
pooledDefinitionLevels[i] = maxDefinitionLevel;
typedResult.SetValue(value, ir++);
}
}
return(result);
}
public virtual TypedArrayWrapper CreateTypedArrayWrapper(Array array, bool isNullable)
{
return(TypedArrayWrapper.Create <TSystemType>(array));
}
