org.apache.lucene.util.LongValues Maven / Gradle / Ivy
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* 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.lucene.util;
import org.apache.lucene.index.NumericDocValues;
import org.apache.lucene.util.packed.PackedInts;
/** Abstraction over an array of longs.
* This class extends NumericDocValues so that we don't need to add another
* level of abstraction every time we want eg. to use the {@link PackedInts}
* utility classes to represent a {@link NumericDocValues} instance.
* @lucene.internal */
public abstract class LongValues extends NumericDocValues {
/** An instance that returns the provided value. */
public static final LongValues IDENTITY = new LongValues() {
@Override
public long get(long index) {
return index;
}
};
/** Get value at index. */
public abstract long get(long index);
@Override
public long get(int idx) {
return get((long) idx);
}
}