/*
* 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.apache.jackrabbit.core.query.lucene.sort;
import java.io.IOException;
import java.util.Map;
import javax.jcr.Session;
import javax.jcr.query.qom.Ordering;
import org.apache.jackrabbit.commons.query.qom.OperandEvaluator;
import org.apache.lucene.search.FieldComparator;
import org.apache.lucene.search.FieldComparatorSource;
public final class DynamicOperandFieldComparatorSource extends
FieldComparatorSource {
private static final long serialVersionUID = 1L;
private final Session session;
private final OperandEvaluator evaluator;
private Map<String, Ordering> orderByProperties;
public DynamicOperandFieldComparatorSource(final Session session,
final OperandEvaluator evaluator,
final Map<String, Ordering> orderByProperties) {
this.session = session;
this.evaluator = evaluator;
this.orderByProperties = orderByProperties;
}
@Override
public FieldComparator newComparator(String fieldname, int numHits,
int sortPos, boolean reversed) throws IOException {
final Ordering o = orderByProperties.get(fieldname);
return new DynamicOperandFieldComparator(session, evaluator, o, numHits);
}
}