VersionNumber.java

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/*
 * Sleuth Kit Data Model
 *
 * Copyright 2011-2017 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * 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.sleuthkit.datamodel;

public class VersionNumber implements Comparable<VersionNumber> {

        private final int major;
        private final int minor;
        private final int patch;

        public VersionNumber(int majorVersion, int minorVersion, int patchVersion) {
                major = majorVersion;
                minor = minorVersion;
                patch = patchVersion;
        }

        public int getMajor() {
                return major;
        }

        public int getMinor() {
                return minor;
        }

        public int getPatch() {
                return patch;
        }

        @Override
        public String toString() {
                return major + "." + minor + "." + patch;
        }

        @Override
        public int compareTo(VersionNumber vs) {
                int majorComp = Integer.compare(this.getMajor(), vs.getMajor());
                if (majorComp != 0) {
                        return majorComp;
                } else {
                        final int minorCompare = Integer.compare(this.getMinor(), vs.getMinor());
                        if (minorCompare != 0) {
                                return minorCompare;
                        } else {
                                return Integer.compare(this.getPatch(), vs.getPatch());
                        }
                }
        }

        @Override
        public int hashCode() {
                int hash = 3;
                hash = 97 * hash + this.major;
                hash = 97 * hash + this.minor;
                hash = 97 * hash + this.patch;
                return hash;
        }

        @Override
        public boolean equals(Object obj) {
                if (this == obj) {
                        return true;
                }
                if (obj == null) {
                        return false;
                }
                if (getClass() != obj.getClass()) {
                        return false;
                }
                final VersionNumber other = (VersionNumber) obj;
                return this.major == other.getMajor()
                                && this.minor == other.getMinor()
                                && this.patch == other.getPatch();
        }
}