/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.exoplatform.services.jcr.impl.core.query.lucene;
import java.io.IOException;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Sort;
import org.exoplatform.services.jcr.datamodel.InternalQName;
/**
* <code>MultiColumnQueryAdapter</code> adapts a lucene query to act like a
* {@link MultiColumnQuery}.
*/
public class MultiColumnQueryAdapter implements MultiColumnQuery {
/**
* The underlying lucene query.
*/
private final Query query;
/**
* The selector name for the query hits.
*/
private final InternalQName selectorName;
/**
* Creates a new adapter for the given <code>query</code>.
*
* @param query a lucene query.
* @param selectorName the selector name for the query hits.
*/
private MultiColumnQueryAdapter(Query query, InternalQName selectorName) {
this.query = query;
this.selectorName = selectorName;
}
/**
* Adapts the given <code>query</code>.
*
* @param query the lucene query to adapt.
* @param selectorName the selector name for the query hits.
* @return a {@link MultiColumnQuery} that wraps the given lucene query.
*/
public static MultiColumnQuery adapt(Query query, InternalQName selectorName) {
return new MultiColumnQueryAdapter(query, selectorName);
}
/**
* {@inheritDoc}
*/
public MultiColumnQueryHits execute(JcrIndexSearcher searcher,
Sort sort,
long resultFetchHint)
throws IOException {
return searcher.execute(query, sort, resultFetchHint, selectorName);
}
}