public override FieldObject Evaluate(RawRecord record)
{
this.container.ResetTableCache(record);
subqueryOp.ResetState();
RawRecord firstResult = subqueryOp.Next();
subqueryOp.Close();
return(firstResult == null ? null : firstResult.RetriveData(0));
}
public override bool Evaluate(RawRecord r)
{
this.container.ResetTableCache(r);
subqueryOp.ResetState();
RawRecord firstResult = subqueryOp.Next();
subqueryOp.Close();
return(firstResult != null);
}
public override bool Evaluate(RawRecord r)
{
constantSourceOp.ConstantSource = r;
subqueryOp.ResetState();
RawRecord firstResult = subqueryOp.Next();
subqueryOp.Close();
return(firstResult != null);
}
public override FieldObject Evaluate(RawRecord record)
{
constantSourceOp.ConstantSource = record;
subqueryOp.ResetState();
RawRecord firstResult = subqueryOp.Next();
subqueryOp.Close();
//return firstResult == null ? null : firstResult.RetriveData(0).ToString();
return(firstResult == null ? null : firstResult.RetriveData(0));
}
public override RawRecord Next()
{
if (TableInput.State())
{
RawRecord rec = TableInput.Next();
if (rec != null)
{
tableCache.Add(rec);
return(rec);
}
else
{
TableInput.Close();
return(null);
}
}
return(tableCache.Count > 0 ? tableCache[tableCache.Count - 1] : null);
}
