/*
 * Copyright (C) 2008, Marek Zawirski <marek.zawirski@gmail.com>
 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.eclipse.jgit.revwalk;

Sorting strategies supported by RevWalk and ObjectWalk. /**
 * Sorting strategies supported by {@link org.eclipse.jgit.revwalk.RevWalk} and
 * {@link org.eclipse.jgit.revwalk.ObjectWalk}.
 */
public enum RevSort {
	
No specific sorting is requested.

Applications should not rely upon the ordering produced by this strategy.
Any ordering in the output is caused by low level implementation details
and may change without notice.
/**
	 * No specific sorting is requested.
	 * <p>
	 * Applications should not rely upon the ordering produced by this strategy.
	 * Any ordering in the output is caused by low level implementation details
	 * and may change without notice.
	 */
	NONE,

	
Sort by commit time, descending (newest first, oldest last).
 This strategy can be combined with TOPO. /**
	 * Sort by commit time, descending (newest first, oldest last).
	 * <p>
	 * This strategy can be combined with {@link #TOPO}.
	 */
	COMMIT_TIME_DESC,

	
Topological sorting (all children before parents).
 This strategy can be combined with COMMIT_TIME_DESC. /**
	 * Topological sorting (all children before parents).
	 * <p>
	 * This strategy can be combined with {@link #COMMIT_TIME_DESC}.
	 */
	TOPO,

	
Flip the output into the reverse ordering.

This strategy can be combined with the others described by this type as
it is usually performed at the very end.
/**
	 * Flip the output into the reverse ordering.
	 * <p>
	 * This strategy can be combined with the others described by this type as
	 * it is usually performed at the very end.
	 */
	REVERSE,

	
Include RevFlag.UNINTERESTING boundary commits after all others. In ObjectWalk, objects associated with such commits (trees, blobs), and all other objects marked explicitly as UNINTERESTING are also included. 

A boundary commit is a UNINTERESTING parent of an interesting commit that
was previously output.
/**
	 * Include {@link RevFlag#UNINTERESTING} boundary commits after all others.
	 * In {@link ObjectWalk}, objects associated with such commits (trees,
	 * blobs), and all other objects marked explicitly as UNINTERESTING are also
	 * included.
	 * <p>
	 * A boundary commit is a UNINTERESTING parent of an interesting commit that
	 * was previously output.
	 */
	BOUNDARY;
}