internal static Range FromTextLoaderRange(TextLoader.Range range)
{
Contracts.Assert(range.Max.HasValue);
var dbRange = new Range(range.Min, range.Max.Value);
dbRange.ForceVector = range.ForceVector;
return(dbRange);
}
private TextLoader.Column GetColumn(string name, ColumnType type, int?start)
{
DataKind?kind;
KeyRange keyRange = null;
if (type.ItemType.IsKey)
{
var key = type.ItemType.AsKey;
if (!key.Contiguous)
{
keyRange = new KeyRange(key.Min, contiguous: false);
}
else if (key.Count == 0)
{
keyRange = new KeyRange(key.Min);
}
else
{
Contracts.Assert(key.Count >= 1);
keyRange = new KeyRange(key.Min, key.Min + (ulong)(key.Count - 1));
}
kind = key.RawKind;
}
else
{
kind = type.ItemType.RawKind;
}
TextLoader.Range[] source = null;
TextLoader.Range range = null;
int minValue = start ?? -1;
if (type.IsKnownSizeVector)
{
range = new TextLoader.Range {
Min = minValue, Max = minValue + type.ValueCount - 1, ForceVector = true
}
}
;
else if (type.IsVector)
{
range = new TextLoader.Range {
Min = minValue, VariableEnd = true
}
}
;
else
{
range = new TextLoader.Range {
Min = minValue
}
};
source = new TextLoader.Range[1] {
range
};
return(new TextLoader.Column()
{
Name = name, KeyRange = keyRange, Source = source, Type = kind
});
}
internal static Range FromTextLoaderRange(TextLoader.Range range)
{
Contracts.Assert(range.Max.HasValue);
return(new Range(range.Min, range.Max.Value));
}
internal static Range FromTextLoaderRange(TextLoader.Range range)
{
return(new Range(range.Min, range.Max));
}
