/*
* 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.constraint;
import java.io.IOException;
import org.apache.jackrabbit.spi.commons.query.qom.SameNodeImpl;
import org.apache.jackrabbit.spi.commons.query.qom.SelectorImpl;
import org.apache.jackrabbit.spi.Name;
import org.apache.jackrabbit.core.query.lucene.ScoreNode;
/**
* <code>SameNodeConstraint</code> implements a same node constraint.
*/
public class SameNodeConstraint extends HierarchyConstraint {
/**
* Creates a same node constraint.
*
* @param constraint the QOM constraint.
* @param selector the selector for this constraint.
*/
public SameNodeConstraint(SameNodeImpl constraint, SelectorImpl selector) {
super(constraint.getPath(), selector);
}
/**
* {@inheritDoc}
*/
public boolean evaluate(ScoreNode[] row,
Name[] selectorNames,
EvaluationContext context)
throws IOException {
ScoreNode sn = row[getSelectorIndex(selectorNames)];
if (sn == null) {
return false;
} else {
return sn.getNodeId().equals(getBaseNodeId(context));
}
}
}