| /* |
| * 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; |
| |
| /** Abstraction over an array of longs. |
| * @lucene.internal */ |
| public abstract class LongValues { |
| |
| /** An instance that returns the provided value. */ |
| public static final LongValues IDENTITY = new LongValues() { |
| |
| @Override |
| public long get(long index) { |
| return index; |
| } |
| |
| }; |
| |
| public static final LongValues ZEROES = new LongValues() { |
| |
| @Override |
| public long get(long index) { |
| return 0; |
| } |
| |
| }; |
| |
| /** Get value at <code>index</code>. */ |
| public abstract long get(long index); |
| |
| } |