/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. 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.hibernate.search.query.fieldcache.impl;
import java.io.IOException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.FieldCache;
/**
* We need a collection of similar implementations, one per each FieldCache.DEFAULT.accessmethod
* to be able to deal with arrays of primitive values without autoboxing all of them.
*
* @author Sanne Grinovero <sanne@hibernate.org> (C) 2011 Red Hat Inc.
* @see FieldLoadingStrategy
*/
public final class IntFieldLoadingStrategy implements FieldLoadingStrategy {
private final String fieldName;
private int[] currentCache;
public IntFieldLoadingStrategy(String fieldName) {
this.fieldName = fieldName;
}
public void loadNewCacheValues(IndexReader reader) throws IOException {
currentCache = FieldCache.DEFAULT.getInts( reader, fieldName );
}
public Integer collect(int relativeDocId) {
return currentCache[relativeDocId];
}
}