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 a single Debian package dependency, such as a Depends, Conflicts, or Replaces dependency.
035     * @see <a href="http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps">Debian Policy Manual</a>
036     */
037    public abstract class AbstractDependency
038        implements ControlFileDependency
039    {
040        /**
041         * Construct a new package dependency. The target package will depend on the supplied package's
042         * name, but not a specific version of that package.
043         * NOTE: No validation is performed on the package name.
044         */
045        public AbstractDependency (String name)
046        {
047            _dependency = name;
048        }
049    
050        /**
051         * Construct a new package dependency. The target package will depend on the supplied package's
052         * name, as well as the supplied relationship to the supplied version,such as equals to
053         * version 1.1.
054         * NOTE: No validation is performed on the package name or package version.
055         */
056        public AbstractDependency (String name, String version, DependencyRelationships relationship)
057        {
058            _dependency = name + " (" + relationship.getOperator() + " " + version + ")";
059        }
060    
061        // from ControlFileDependency
062        public String asString ()
063        {
064            return _dependency;
065        }
066    
067        /** The dependency expressed as a string. */
068        private final String _dependency;
069    }