search - Lucene Filter and Query Concept -


i working on search project in java , i'm using lucene. want filter final search results query user (e.g. "x" , "y") feature of advanced search. search query consists of queries on different parts of news , it's working correctly filter doesn't work i'm using following code:

leadfilter = new querywrapperfilter(new queryparser(lucene_version, index_field_lead, analyzer).parse(advancefilter)); titlefilter = new querywrapperfilter(new queryparser(lucene_version, index_field_title, analyzer).parse(advancefilter));  booleanfilter.add(leadfilter, occur.should);    booleanfilter.add(titlefilter, occur.should);   topdocs = indexsearcher.search(booleanquery, booleanfilter,query.getlimit());

maybe have not understood concept of "filter" correctly. please correct me or propose way filter results after search lucene.

thanks in advance


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