Hello All,

I am using lucene to index my entities and I want to get the whole indexed values and their hits for a specific field of my class.

for example I have a Car class which has an indexed column named brand, I want to get all indexed brand names and their hits. is there a way to do it in my DAO using lucene?

Thanks and regards.

edit: To be more clearer, if I have 3 cars like, ferrari, mercedes and copy ferrari, I want to get the following data somehow

2 ferrari
1 copy
1 mercedes

Hi,

I assume you are using Hibernate Search and not pure Lucene, right? If so it would help if you would share your entity and any other configuration.

Trying to give you an answer anyways - you can definitely use your problem with Lucene. However, probably not in one query. Depending on your data it might in fact be better to do some sort of HQL query.

--Hardy

Hi Hardy,

yes I am using hibernate-search. what I have tried was something like this:

Map<String,Integer> hits = new HashMap<String,Integer>();
IndexReader reader = IndexReader.open( getDirectory() );
TermEnum terms = reader.terms( new Term( field, "" ) );

while( field.equals( terms.term().field() ) ){
hits.put( field, terms.docFreq() );
}

but it does not seem working.

I am using hibernate-search 3.1.0.GA by the way.

Hello again,

it is my mistake, it is working with the following code:

public Map<String,Integer> getAllHits(String field) {
Map<String,Integer> hits = new HashMap<String,Integer>();
IndexReader reader = IndexReader.open( getDirectory() );
TermEnum terms = reader.terms( new Term( field, "" ) );

while( field.equals( terms.term().field() ) ){
hits.put( terms.term().text(), terms.docFreq() );

if( !terms.next() )
break;

}
}

Yigit.

Hi,

Seems like a legit way of doing this :)