Query to return all entity associated with a class

tfecw · **Joined:** Tue Jul 22, 2008 11:30 am **Posts:** 13

Hi,

I have a view in my application that shows a list of Foo items in my system. That list will get filtered based on what the user types into a search box. Searching and filtering based on attributes works great and was a breeze to configure. What i'm having trouble with is coming up with a query to show me all my items.

Code:

  MultiFieldQueryParser parser = new MultiFieldQueryParser(defaultNames, new StandardAnalyzer());
  org.apache.lucene.search.Query luceneQuery = luceneQuery = parser.parse(search);
  FullTextEntityManager fullTextEntityManager = Search.createFullTextEntityManager(em);
  FullTextQuery searchCriteria = fullTextEntityManager.createFullTextQuery(luceneQuery, Foo.class);

I guess i was hoping to give search a value of * which would then return everything in the index that is a Foo.class Is there a way to do this in Hibernate Search? I guess as a back up i could just query against the database, but i'm not too excited with the idea of maintaing my hibernateSearch - search code as well as the typical hibernate HQL query portion of it if/when tables/columns/etc changes.

Thoughts?
Thanks,

amin-mc · **Joined:** Wed Oct 03, 2007 2:31 pm **Posts:** 205

I guess one way would be to do the following query:

Code:

_hibernate_class:com.Foo

That lucene query would return all of the results that were matched. I just gave it a go and it works. You would need to ensure that the field _hibernate_class was present in the search fields.

Hope that helps

sanne.grinovero · **Posted:** Sun Oct 11, 2009 6:34 pm

You can match all by using a MatchAllDocsQuery, no need to create a QueryParser.

tfecw · **Joined:** Tue Jul 22, 2008 11:30 am **Posts:** 13

The matchAllDocuments query worked great! Thanks!