/*
* 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.exoplatform.services.jcr.datamodel.InternalQName;
/**
* <code>QueryHitsAdapter</code> implements an adapter for {@link QueryHits} and
* exposes them as {@link MultiColumnQueryHits}.
*/
public class QueryHitsAdapter implements MultiColumnQueryHits {
/**
* The query hits to adapt.
*/
private final QueryHits hits;
/**
* The single selector name to expose.
*/
private final InternalQName selectorName;
/**
* Creates a new adapter for <code>hits</code>.
*
* @param hits the query hits to adapt.
* @param selectorName the single selector name for the query hits.
*/
public QueryHitsAdapter(QueryHits hits, InternalQName selectorName) {
this.hits = hits;
this.selectorName = selectorName;
}
/**
* {@inheritDoc}
*/
public ScoreNode[] nextScoreNodes() throws IOException {
ScoreNode sn = hits.nextScoreNode();
if (sn != null) {
return new ScoreNode[]{sn};
} else {
return null;
}
}
/**
* {@inheritDoc}
*/
public InternalQName[] getSelectorNames() {
return new InternalQName[]{selectorName};
}
/**
* {@inheritDoc}
*/
public void close() throws IOException {
hits.close();
}
/**
* {@inheritDoc}
*/
public int getSize() {
return hits.getSize();
}
/**
* {@inheritDoc}
*/
public void skip(int n) throws IOException {
hits.skip(n);
}
}