Phrase Search including wildcards

r.wilbert · **Joined:** Fri Jan 28, 2011 6:08 am **Posts:** 3

Hello !

I have seen that phrase search is not compatible with wildcards (reading Lucene FAQ).

Will this be possible one day with Hibernate-Search ?

Has already someone by-passed this limitation ? What would be the way to achieve this ?

Thanks !

hardy.ferentschik · **Posted:** Mon Feb 07, 2011 9:25 am

Hi,

if we are looking at the same FAQ - http://wiki.apache.org/lucene-java/LuceneFAQ - it is saying that you can use a MultiPhraseQuery as work around. Is this what you are after.
If not, can you describe your use case in more detail and what you expect Hibernate Search to do?

--Hardy

r.wilbert · **Joined:** Fri Jan 28, 2011 6:08 am **Posts:** 3

hardy.ferentschik wrote:

Hi,

if we are looking at the same FAQ - http://wiki.apache.org/lucene-java/LuceneFAQ - it is saying that you can use a MultiPhraseQuery as work around. Is this what you are after.
If not, can you describe your use case in more detail and what you expect Hibernate Search to do?

--Hardy

What I would like to do is search on the following type of string : "hell* mis*". This is not possible using Hibernate Search API. I did the following but I guess this is not the optimal way :

Code:

String[] searchTerms = searchString.split(" ");
      BooleanQuery orQuery = new BooleanQuery();

      for (String searchTerm : searchTerms) {
         Query query = builder
               .keyword()
               .wildcard()
               .onField(TraductionPhrase.TEXT + "." + TextTraduction.VALUE)
               .matching(searchTerm).createQuery();
         orQuery.add(query, Occur.SHOULD);
      }

And doing it this way, I loose the phrase method options (such as slop).

hardy.ferentschik · **Posted:** Tue Feb 08, 2011 5:11 am

Hi,

so you are talking about the Hibernate Search query DSL. You are right that the DSL does not support phrase queries with wildcards.The DSL is still work in progress and we are working on extending it foe the use cases you mentioned.
You can expect some changes/additions to the query DSL over the next few releases.

--Hardy

r.wilbert · **Joined:** Fri Jan 28, 2011 6:08 am **Posts:** 3

hardy.ferentschik wrote:

Hi,

so you are talking about the Hibernate Search query DSL. You are right that the DSL does not support phrase queries with wildcards.The DSL is still work in progress and we are working on extending it foe the use cases you mentioned.
You can expect some changes/additions to the query DSL over the next few releases.

--Hardy

Thank you Hardy. This would be a great feature for Hibernate Search ;)

sanne.grinovero · **Posted:** Wed Feb 09, 2011 9:42 am

While the DSL can be improved, I think that the code you posted should work fine.
Also about efficiency, the QueryParser would output a very similarly Query if it supported wildcards.