private T InvokeExecuteOnEval(IEnumerable result)
{
// We get the required element type of ExecuteOnEval and cast the result enumerable
var elementType = ExecuteOnEval.Method.GetParameters()[1].ParameterType.GetGenericArguments()[0];
// When not null, ExecuteOnEval is fetched with PostExecuteTransformer from IntermediateHqlTree
// through ExpressionToHqlTranslationResults, which requires a IQueryable as input and directly
// yields the scalar result when the query is scalar.
return((T)ExecuteOnEval.DynamicInvoke(MakeQueryableHelper.MakeQueryable(result, elementType)));
}
public async Task <T> GetValueAsync(CancellationToken cancellationToken = default(CancellationToken))
{
var result = await _getResultAsync(cancellationToken).ConfigureAwait(false);
if (ExecuteOnEval != null)
{
// When not null, ExecuteOnEval is fetched with PostExecuteTransformer from IntermediateHqlTree
// through ExpressionToHqlTranslationResults, which requires a IQueryable as input and directly
// yields the scalar result when the query is scalar.
return((T)ExecuteOnEval.DynamicInvoke(result.AsQueryable()));
}
return(result.FirstOrDefault());
}
