FullTextMemberRepository.java

/* 
 * JBoss, Home of Professional Open Source
 * Copyright 2012 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package org.jboss.as.quickstarts.kitchensink.data;

import java.util.List;
import javax.ejb.Stateless;
import javax.enterprise.inject.Alternative;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.apache.lucene.search.Query;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.SortField;
import org.jboss.as.quickstarts.kitchensink.model.Member;

import org.hibernate.search.jpa.FullTextEntityManager;
import org.hibernate.search.jpa.Search;
import org.hibernate.search.query.DatabaseRetrievalMethod;
import org.hibernate.search.query.ObjectLookupMethod;
import org.hibernate.search.query.dsl.QueryBuilder;

@Stateless
@Alternative
public class FullTextMemberRepository implements MemberRepository {

	@Inject
	private QueryBuilder queryBuilder;

	@PersistenceContext(unitName = "kitchen")
	private EntityManager em;

	@Override
	public Member findById(String id) {
		return em.find( Member.class, id );
	}

	@Override
	public Member findByEmail(String email) {
		Query luceneQuery = queryBuilder
				.keyword()
				.onField( "contactDetails.email" )
				.matching( email )
				.createQuery();
		FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager( em );
		List resultList = fullTextEntityManager.createFullTextQuery( luceneQuery )
				.initializeObjectsWith( ObjectLookupMethod.SKIP, DatabaseRetrievalMethod.FIND_BY_ID )
				.getResultList();
		if ( resultList.size() > 0 ) {
			return (Member) resultList.get( 0 );
		}
		else {
			return null;
		}
	}

	@Override
	public List<Member> findAllOrderedByName() {
		Query luceneQuery = queryBuilder
				.all()
				.createQuery();
		FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager( em );
		List resultList = fullTextEntityManager.createFullTextQuery( luceneQuery )
				.initializeObjectsWith( ObjectLookupMethod.SKIP, DatabaseRetrievalMethod.FIND_BY_ID )
				.setSort( new Sort( new SortField( "sortableStoredName", SortField.STRING_VAL ) ) )
				.getResultList();
		return resultList;
	}

}