com.b2international.snowowl.snomed.reasoner.server.classification.StorageKeyComparator.java Source code

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Here is the source code for com.b2international.snowowl.snomed.reasoner.server.classification.StorageKeyComparator.java

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/*
 * Copyright 2011-2016 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * Licensed 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 com.b2international.snowowl.snomed.reasoner.server.classification;

import java.util.Comparator;

import com.b2international.snowowl.snomed.datastore.index.entry.SnomedConceptDocument;
import com.google.common.primitives.Longs;

/**
 * 
 */
public enum StorageKeyComparator implements Comparator<SnomedConceptDocument> {
    INSTANCE;

    /*
     * (non-Javadoc)
     * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
     */
    @Override
    public int compare(final SnomedConceptDocument o1, final SnomedConceptDocument o2) {
        return Longs.compare(o1.getStorageKey(), o2.getStorageKey());
    }
}