org.fusesource.fabric.agent.mvn.SnapshotVersionSegment Maven / Gradle / Ivy

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/**
 * Copyright (C) FuseSource, Inc.
 * http://fusesource.com
 *
 * Licensed 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.fusesource.fabric.agent.mvn;

/**
 * A SNAPSHOT version segment. Acts as a StringVersionSegment beside that in comparations is considerided as the lowest
 * segment.
 *
 * @author Alin Dreghiciu
 * @since 0.2.0, January 30, 2008
 */
class SnapshotVersionSegment
        extends StringVersionSegment {

    /**
     * Creates a new SNAPSHOT version segment.
     */
    SnapshotVersionSegment() {
        super("SNAPSHOT");
    }

    /**
     * @see Comparable#compareTo(Object)
     */
    public int compareTo(final VersionSegment versionSegment) {
        if (versionSegment == null) {
            return 1;
        }
        if (versionSegment instanceof SnapshotVersionSegment) {
            return 0;
        }
        return -1;
    }

}