com.sun.faces.application.resource.VersionInfo Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jakarta.faces-api Show documentation

Jakarta Faces defines an MVC framework for building user interfaces for web applications, including UI components, state management, event handing, input validation, page navigation, and support for internationalization and accessibility.

There is a newer version: 4.1.2

Show newest version

/*
 * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.faces.application.resource;

/**
 * Metadata pertaining to versions.
 */
public class VersionInfo implements Comparable {

    private final String version;
    private final String extension;

    // ------------------------------------------------------------ Constructors

    /**
     * Constructs a new VersionInfo instance.
     *
     * @param version the version
     * @param extension the extension (only pertains to versioned resources, not libraries, and thus may be
     * null)
     */
    public VersionInfo(String version, String extension) {
        this.version = version;
        this.extension = extension;
    }

    // ---------------------------------------------------------- Public Methods

    /**
     * @return the version
     */
    public String getVersion() {

        return version;

    }

    /**
     * @return the extension of the resource at processing time, or null if this version is associated with a library
     */
    public String getExtension() {

        return extension;

    }

    @Override
    public String toString() {

        return version;

    }

    @Override
    public int hashCode() {

        return version.hashCode() ^ (extension != null ? extension.hashCode() : 0);

    }

    @Override
    public boolean equals(Object obj) {

        if (!(obj instanceof VersionInfo)) {
            return false;
        }
        if (this == obj) {
            return true;
        }
        VersionInfo passed = (VersionInfo) obj;
        boolean versionsEqual = version.equals(passed.version);
        boolean extensionEqual;
        if (extension == null) {
            extensionEqual = passed.extension == null;
        } else {
            extensionEqual = extension.equals(passed.extension);
        }
        return versionsEqual && extensionEqual;

    }

    // ------------------------------------------------- Methods from Comparable

    @Override
    public int compareTo(VersionInfo versionInfo) {
        assert versionInfo != null;
        return version.compareTo(versionInfo.version);
    }
}