001    /*
002     * Jpkg - Java library and tools for operating system package creation.
003     *
004     * Copyright (c) 2007 Three Rings Design, Inc.
005     * All rights reserved.
006     *
007     * Redistribution and use in source and binary forms, with or without
008     * modification, are permitted provided that the following conditions
009     * are met:
010     * 1. Redistributions of source code must retain the above copyright
011     *    notice, this list of conditions and the following disclaimer.
012     * 2. Redistributions in binary form must reproduce the above copyright
013     *    notice, this list of conditions and the following disclaimer in the
014     *    documentation and/or other materials provided with the distribution.
015     * 3. Neither the name of the copyright owner nor the names of contributors
016     *    may be used to endorse or promote products derived from this software
017     *    without specific prior written permission.
018     *
019     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
020     * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
021     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
022     * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
023     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
024     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
025     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
026     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
027     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
029     * POSSIBILITY OF SUCH DAMAGE.
030     */
031    package com.threerings.jpkg.debian.dependency;
032    
033    /**
034     * Holds the valid dependency relationships supported by Debian packaging system.
035     * @see <a href="http://www.debian.org/doc/debian-policy/ch-relationships.html#s-depsyntax">Debian Policy Manual</a>
036     */
037    public enum DependencyRelationships
038    {
039        /**
040         * The strictly earlier relationship, indicating the dependency's version must be "lesser" than
041         * and not equal to the declared version.
042         */
043        STRICTLY_EARLIER ("<<"),
044        /**
045         * The strictly earlier relationship, indicating the dependency's version must be "lesser" than or
046         * equal to the declared version.
047         */
048        EARLIER_OR_EQUAL ("<="),
049        /**
050         * The exactly equal relationship, indicating the dependency's version must be equal to the
051         * declared version.
052         */
053        EXACTLY_EQUAL ("="),
054        /**
055         * The later or equal relationship, indicating the dependency's version must be "greater" than or
056         * equal to the declared version.
057         */
058        LATER_OR_EQUAL (">="),
059        /**
060         * The strictly later relationship, indicating the dependency's version must be "greater" than
061         * and not equal to the declared version.
062         */
063        STRICTLY_LATER (">>");
064    
065        DependencyRelationships (String operator)
066        {
067            _operator = operator;
068        }
069    
070        /**
071         * Returns the string representation of this dependency relationship.
072         */
073        public String getOperator ()
074        {
075            return _operator;
076        }
077    
078        private final String _operator;
079    }