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Hello Forum,

a customer wants their Search Results grouped by default in the following way 

1. web contents

2. documents

3. everything else (order does not matter here)

Since this should be sorted by default a facet wont do it here. I wanted to implement this using an IndexerPostProcessor and by setting a GroupBy Object in the SearchContext in the Processors Method postProcessFullQuery(). However even though the method is definitely called and the GroupBy Object is set in the SearchContext (I put a breakpoint in there) the search seems to ignore my GroupBy argument as the Order of the Results shown is not affected. As you can see in the code below I have tried to setup a very basic GroupBy Argument (I just added a max size of 5 to quicktest my solution). Just Telling LR by which Field to group. No Sort order or anything yet. Do I need to tell LR by which order I want to Sort the Field for it to work or activate the groupby somewhere? Has anyone experience with this? Thank you.

Code:

@Component(
   immediate = true,
   property = {
      "indexer.class.name=com.liferay.journal.model.JournalArticle",
      "indexer.class.name=com.liferay.portlet.documentlibrary.model.DLFileEntry"
   },
   service = IndexerPostProcessor.class
)
public class MultipleEntityIndexerPostProcessor
   implements IndexerPostProcessor {

   @Override
   public void postProcessContextBooleanFilter(
         BooleanFilter booleanFilter, SearchContext searchContext)
      throws Exception {

   }

   @Override
   public void postProcessContextQuery(
         BooleanQuery contextQuery, SearchContext searchContext)
      throws Exception {

   }

   @Override
   public void postProcessDocument(Document document, Object obj)
      throws Exception {

   }

   @Override
   public void postProcessFullQuery(
         BooleanQuery fullQuery, SearchContext searchContext)
      throws Exception {
      searchContext.setGroupBy(createGroupBy());
   }

   @Override
   public void postProcessSearchQuery(
         BooleanQuery searchQuery, BooleanFilter booleanFilter,
         SearchContext searchContext)
      throws Exception {

   }

   @Override
   public void postProcessSearchQuery(
         BooleanQuery searchQuery, SearchContext searchContext)
      throws Exception {

   }

   @Override
   public void postProcessSummary(
      Summary summary, Document document, Locale locale, String snippet) {

   }

   private GroupBy createGroupBy(){
      GroupBy groupBy = new GroupBy("entryClassName");
      groupBy.setSize(5);
      return groupBy;
   }
}