private IndexKey ResolveKey(IndexKey key)
{
if (key.Equals(IndexRange.FirstInSet))
{
ResolveSortedSet();
return(index.GetKey(sortedSet[0]));
}
if (key.Equals(IndexRange.LastInSet))
{
ResolveSortedSet();
return(index.GetKey(sortedSet[sortedSet.Length - 1]));
}
return(key);
}
public static void SingleValueKeyEqual(object value1, object value2, bool expected)
{
var key1 = new IndexKey(SqlObject.New(SqlValueUtil.FromObject(value1)));
var key2 = new IndexKey(SqlObject.New(SqlValueUtil.FromObject(value2)));
Assert.Equal(expected, key1.Equals(key2));
}
public static void MultiValueKeyEqual(object value1a, object value1b, object value2a, object value2b, bool expected)
{
var key1 = new IndexKey(new [] {
SqlObject.New(SqlValueUtil.FromObject(value1a)),
SqlObject.New(SqlValueUtil.FromObject(value1b))
});
var key2 = new IndexKey(new[] {
SqlObject.New(SqlValueUtil.FromObject(value2a)),
SqlObject.New(SqlValueUtil.FromObject(value2b))
});
Assert.Equal(expected, key1.Equals(key2));
}
private long PositionOfRangePoint(RangeFieldOffset position, IndexKey val)
{
long p;
IndexKey cell;
switch (position)
{
case RangeFieldOffset.FirstValue:
if (val.Equals(IndexRange.FirstInSet))
{
return(0);
}
if (val.Equals(IndexRange.LastInSet))
{
// Get the last value and search for the first instance of it.
cell = Last;
}
else
{
cell = val;
}
p = SearchFirst(cell);
// (If value not found)
if (p < 0)
{
return(-(p + 1));
}
return(p);
case RangeFieldOffset.LastValue:
if (val.Equals(IndexRange.LastInSet))
{
return(RowCount - 1);
}
if (val.Equals(IndexRange.FirstInSet))
{
// Get the first value.
cell = First;
}
else
{
cell = val;
}
p = SearchLast(cell);
// (If value not found)
if (p < 0)
{
return(-(p + 1) - 1);
}
return(p);
case RangeFieldOffset.BeforeFirstValue:
if (val.Equals(IndexRange.FirstInSet))
{
return(-1);
}
if (val.Equals(IndexRange.LastInSet))
{
// Get the last value and search for the first instance of it.
cell = Last;
}
else
{
cell = val;
}
p = SearchFirst(cell);
// (If value not found)
if (p < 0)
{
return(-(p + 1) - 1);
}
return(p - 1);
case RangeFieldOffset.AfterLastValue:
if (val.Equals(IndexRange.LastInSet))
{
return(RowCount);
}
if (val.Equals(IndexRange.FirstInSet))
{
// Get the first value.
cell = First;
}
else
{
cell = val;
}
p = SearchLast(cell);
// (If value not found)
if (p < 0)
{
return(-(p + 1));
}
return(p + 1);
default:
throw new InvalidOperationException("Unrecognised position.");
}
}