public static AggregationDescriptor <T> SortedTopHits <T>(this AggregationDescriptor <T> agg, int size, Expression <Func <T, object> > fieldSort, SortType sorttype, params Expression <Func <T, object> >[] fieldGetter) where T : class
{
var aggName = sorttype + fieldSort.GetAggName(AggType.TopHits);
var sortFieldDescriptor = new SortFieldDescriptor <T>();
sortFieldDescriptor = sortFieldDescriptor.OnField(fieldSort);
if (sorttype == SortType.Ascending)
{
sortFieldDescriptor = sortFieldDescriptor.Ascending();
}
else
{
sortFieldDescriptor = sortFieldDescriptor.Descending();
}
return(agg.TopHits(aggName, x => x.Size(size).Source(i => i.Include(fieldGetter)).Sort(s => sortFieldDescriptor)));
}
public static AggregationDescriptor <T> TopHits <T>(this AggregationDescriptor <T> agg, int size, params Expression <Func <T, object> >[] fieldGetter) where T : class
{
var aggName = AggType.TopHits.ToString();
return(agg.TopHits(aggName, x => x.Size(size).Source(i => i.Include(fieldGetter))));
}