internal override IEnumerable <TResult> AdaptResult(string cql, RowSet rs)
{
IEnumerable <TSource> sourceData = _source.AdaptResult(cql, rs).ToArray();
var func = _projectionExpression.Compile();
return(sourceData.Select(func));
}
internal override IEnumerable <TResult> AdaptResult(string cql, RowSet rs)
{
IEnumerable <TResult> result;
if (!_canCompile)
{
var mapper = MapperFactory.GetMapperWithProjection <TResult>(cql, rs, _projectionExpression);
result = rs.Select(mapper);
}
else
{
IEnumerable <TSource> sourceData = _source.AdaptResult(cql, rs);
var func = _projectionExpression.Compile();
result = sourceData.Select(func);
}
var enumerator = result.GetEnumerator();
// Eagerly evaluate the first one in order to fail fast
var hasFirstItem = enumerator.MoveNext();
return(YieldFromFirst(enumerator, hasFirstItem));
}
