IndexedSorter.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:2k
- /*
- * 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.hadoop.util;
- /**
- * Interface for sort algorithms accepting {@link IndexedSortable} items.
- *
- * A sort algorithm implementing this interface may only
- * {@link IndexedSortable#compare} and {@link IndexedSortable#swap} items
- * for a range of indices to effect a sort across that range.
- */
- public interface IndexedSorter {
- /**
- * Sort the items accessed through the given IndexedSortable over the given
- * range of logical indices. From the perspective of the sort algorithm,
- * each index between l (inclusive) and r (exclusive) is an addressable
- * entry.
- * @see IndexedSortable#compare
- * @see IndexedSortable#swap
- */
- void sort(IndexedSortable s, int l, int r);
- /**
- * Same as {@link #sort(IndexedSortable,int,int)}, but indicate progress
- * periodically.
- * @see #sort(IndexedSortable,int,int)
- */
- void sort(IndexedSortable s, int l, int r, Progressable rep);
- }