public static IRowCursor CreateKeyRowCursor(RangeFilter filter, IRowCursor input, bool[] active)
{
Contracts.Assert(filter._type.IsKey);
Func <RangeFilter, IRowCursor, bool[], IRowCursor> del = CreateKeyRowCursor <int>;
var methodInfo = del.GetMethodInfo().GetGenericMethodDefinition().MakeGenericMethod(filter._type.RawType);
return((IRowCursor)methodInfo.Invoke(null, new object[] { filter, input, active }));
}
public DoubleRowCursor(RangeFilter parent, DataViewRowCursor input, bool[] active)
: base(parent, input, active)
{
Ch.Assert(Parent._type == NumberDataViewType.Double);
_srcGetter = Input.GetGetter <Double>(Input.Schema[Parent._index]);
_getter =
(ref Double value) =>
{
Ch.Check(IsGood, RowCursorUtils.FetchValueStateError);
value = _value;
};
}
public DoubleRowCursor(RangeFilter parent, RowCursor input, bool[] active)
: base(parent, input, active)
{
Ch.Assert(Parent._type == NumberType.R8);
_srcGetter = Input.GetGetter <Double>(Parent._index);
_getter =
(ref Double value) =>
{
Ch.Check(IsGood);
value = _value;
};
}
public SingleRowCursor(RangeFilter parent, RowCursor input, bool[] active)
: base(parent, input, active)
{
Ch.Assert(Parent._type == NumberType.R4);
_srcGetter = Input.GetGetter <Single>(Parent._index);
_getter =
(ref Single value) =>
{
Ch.Check(IsGood, RowCursorUtils.FetchValueStateError);
value = _value;
};
}
public KeyRowCursor(RangeFilter parent, DataViewRowCursor input, bool[] active)
: base(parent, input, active)
{
Ch.Assert(Parent._type.GetKeyCount() > 0);
_count = Parent._type.GetKeyCount();
_srcGetter = Input.GetGetter<T>(Input.Schema[Parent._index]);
_getter =
(ref T dst) =>
{
Ch.Check(IsGood, RowCursorUtils.FetchValueStateError);
dst = _value;
};
bool identity;
_conv = Data.Conversion.Conversions.Instance.GetStandardConversion<T, ulong>(Parent._type, NumberDataViewType.UInt64, out identity);
}
public KeyRowCursor(RangeFilter parent, RowCursor input, bool[] active)
: base(parent, input, active)
{
Ch.Assert(Parent._type.GetKeyCount() > 0);
_count = Parent._type.GetKeyCount();
_srcGetter = Input.GetGetter <T>(Parent._index);
_getter =
(ref T dst) =>
{
Ch.Check(IsGood);
dst = _value;
};
bool identity;
_conv = Data.Conversion.Conversions.Instance.GetStandardConversion <T, ulong>(Parent._type, NumberType.U8, out identity);
}
protected RowCursorBase(RangeFilter parent, DataViewRowCursor input, bool[] active)
: base(parent.Host, input, parent.OutputSchema, active)
{
Parent = parent;
_min = Parent._min;
_max = Parent._max;
if (Parent._includeMin)
{
if (Parent._includeMax)
CheckBounds = Parent._complement ? (Func<Double, bool>)TestNotCC : TestCC;
else
CheckBounds = Parent._complement ? (Func<Double, bool>)TestNotCO : TestCO;
}
else
{
if (Parent._includeMax)
CheckBounds = Parent._complement ? (Func<Double, bool>)TestNotOC : TestOC;
else
CheckBounds = Parent._complement ? (Func<Double, bool>)TestNotOO : TestOO;
}
}
private static DataViewRowCursor CreateKeyRowCursor <TSrc>(RangeFilter filter, DataViewRowCursor input, bool[] active)
{
Contracts.Assert(filter._type is KeyDataViewType);
return(new KeyRowCursor <TSrc>(filter, input, active));
}
private static RowCursor CreateKeyRowCursor <TSrc>(RangeFilter filter, RowCursor input, bool[] active)
{
Contracts.Assert(filter._type.IsKey);
return(new KeyRowCursor <TSrc>(filter, input, active));
}
