public SequenceConstruction <KeyT> GetRange <KeyT>(SequenceConstruction <KeyT> sequenceConstruction, IRangeBoundary <KeyT> range)
{
long minAddr = 0L;
long maxAddr = (sequenceConstruction.Index.KeyCount - 1);
long loBound = 0;
long hiBound = 0;
if (range.GetType() == typeof(IntervalOf <KeyT>))
{
var newRange = (IntervalOf <KeyT>)range;
//TODO support other lookup semantics
//TODO add error handling missing keys here
loBound = sequenceConstruction.Index.Lookup(newRange.Start, LookupSemantics.Exact).Value;
hiBound = sequenceConstruction.Index.Lookup(newRange.End, LookupSemantics.Exact).Value;
}
//TODO add checks for missing keys
if (hiBound > loBound)
{
var newIndex = new LinearRangeIndex <KeyT>(sequenceConstruction.Index, loBound, hiBound);
IVecConstructionCmd newVectorContr = new GetRange(sequenceConstruction.VectorConstruction, new IntervalOf <Int64>(hiBound, loBound, BoundaryBehavior.Inclusive));
return(new SequenceConstruction <KeyT>(newIndex, newVectorContr));
}
else
{
//TODO reversed range handling
}
//TODO
return(null);
}
public SequenceConstruction <KeyT> GetAddressRange <KeyT>(SequenceConstruction <KeyT> indexConstruction, IRangeBoundary <long> range)
{
//TODO come up with better type conversions here
if (range.GetType() == typeof(IntervalOf <long>))
{
var newRange = (IntervalOf <long>)range;
var newVectorConstr = new GetRange(indexConstruction.VectorConstruction, new IntervalOf <long>(newRange.Start, newRange.End, BoundaryBehavior.Inclusive));
var newIndex = new LinearRangeIndex <KeyT>(indexConstruction.Index, newRange.Start, newRange.End);
return(new SequenceConstruction <KeyT>(newIndex, newVectorConstr));
}
return(null);
}