/**
* 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.mahout.cf.taste.impl.similarity;
import org.apache.mahout.cf.taste.impl.common.Cache;
import org.apache.mahout.common.LongPair;
/**
* A {@link Cache.MatchPredicate} which will match an ID against either element of a
* {@link LongPair}.
*/
final class LongPairMatchPredicate implements Cache.MatchPredicate<LongPair> {
private final long id;
LongPairMatchPredicate(long id) {
this.id = id;
}
@Override
public boolean matches(LongPair pair) {
return pair.getFirst() == id || pair.getSecond() == id;
}
}