/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.query;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Query;
import org.hibernate.search.engine.SearchFactoryImplementor;
import org.infinispan.Cache;
import org.infinispan.query.backend.QueryHelper;
import org.infinispan.query.impl.CacheQueryImpl;
/**
* Class that is used to build {@link org.infinispan.query.CacheQuery}
*
* @author Navin Surtani
* @since 4.0
*/
public class QueryFactory {
private Cache cache;
private SearchFactoryImplementor searchFactory;
public QueryFactory(Cache cache, QueryHelper qh) {
this.cache = cache;
searchFactory = qh.getSearchFactory();
}
/**
* This is a simple method that will just return a {@link CacheQuery}
*
* @param luceneQuery - {@link org.apache.lucene.search.Query}
* @return the query result
*/
public CacheQuery getQuery(Query luceneQuery) {
return new CacheQueryImpl(luceneQuery, searchFactory, cache);
}
/**
* This method is a basic query. The user provides 2 strings and internally the {@link
* org.apache.lucene.search.Query} is built.
* <p/>
* The first string is the field that they are searching and the second one is the search that they want to run.
* <p/>
* For example: -
* <p/>
* {@link org.infinispan.query.CacheQuery} cq = new QueryFactory
* <p/>
* The query is built by use of a {@link org.apache.lucene.queryParser.QueryParser} and a {@link
* org.apache.lucene.analysis.standard.StandardAnalyzer} </p>
*
* @param field - the field on the class that you are searching
* @param search - the String that you want to be using to search
* @return {@link org.infinispan.query.CacheQuery} result
*/
public CacheQuery getBasicQuery(String field, String search) throws org.apache.lucene.queryParser.ParseException {
QueryParser parser = new QueryParser(field, new StandardAnalyzer());
org.apache.lucene.search.Query luceneQuery = parser.parse(search);
return new CacheQueryImpl(luceneQuery, searchFactory, cache);
}
}