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 Post subject: Searching a collection
PostPosted: Mon Sep 19, 2011 2:25 pm 
Newbie

Joined: Tue Jul 26, 2011 6:46 pm
Posts: 11
How do I search a collection through Lucene?

e.g.

Code:
String searchString = "what to search";
Query luceneQuery = mythQB.keyword().onField(fieldName).matching(searchString).createQuery();


This is what I can do right now.

Now I want to pass a collection of strings in place of one single string. How do I do that?


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 Post subject: Re: Searching a collection
PostPosted: Tue Sep 20, 2011 5:11 am 
Hibernate Team
Hibernate Team

Joined: Thu Apr 05, 2007 5:52 am
Posts: 1689
Location: Sweden
Hi,

you cannot pass a collection of strings, but you could concatenate the strings and pass it as single string. The matching method will apply the right analyzer for the field you are searching on and analyze your concatenate accordingly.

--Hardy


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 Post subject: Re: Searching a collection
PostPosted: Wed Sep 21, 2011 3:38 am 
Newbie

Joined: Tue Jul 26, 2011 6:46 pm
Posts: 11
Does that mean there is no simple way of saying search all the strings in the collection (i want to OR them). The query should return all the results that have atleast one word from the collection present in it.


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 Post subject: Re: Searching a collection
PostPosted: Wed Sep 21, 2011 3:42 am 
Hibernate Team
Hibernate Team

Joined: Thu Apr 05, 2007 5:52 am
Posts: 1689
Location: Sweden
This is what's going to happen. The analyzer will analyze your string and combine the tokens with a logical OR. This is the same for your example ""what to search" - the search terms would be "what", "to", "search" combined by OR. Well, "to" would probably discarded as a stop word, but that depends on the analyzer.

If this is not what you want have a look at phrase query. An alternative to concatenating the strings is to call onField(fieldName).matching(searchString) in a loop.

--Hardy


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 Post subject: Re: Searching a collection
PostPosted: Wed Sep 21, 2011 4:11 am 
Newbie

Joined: Tue Jul 26, 2011 6:46 pm
Posts: 11
Thanks a ton. Tried it and it worked!


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