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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/CORBA/Version.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/CORBA/Version.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/CORBA/Version.java b/gcc-4.4.3/libjava/classpath/gnu/CORBA/Version.java new file mode 100644 index 000000000..efc27c220 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/CORBA/Version.java @@ -0,0 +1,222 @@ +/* Version.java -- + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.CORBA; + +import java.io.IOException; +import java.io.Serializable; + +import org.omg.CORBA.MARSHAL; + +/** + * A version number, represented by the major version number + * and the minor version number. + * + * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) + */ +public class Version + implements Serializable +{ + /** + * Use serialVersionUID for interoperability. + */ + private static final long serialVersionUID = 1; + + /** + * Major number (0..256, so the byte cannot be used). + */ + public final int major; + + /** + * Minor number. + */ + public final int minor; + + /** + * Create the version with the given version numbers. + * + * @param _major major number (0..255) + * @param _minor minor number (0..255) + */ + public Version(int _major, int _minor) + { + major = (byte) _major; + minor = (byte) _minor; + } + + /** + * Returns true if the versions are equal. + * @param other the other version to compare. + * + * @return true if the versions are equal + */ + public boolean equals(java.lang.Object other) + { + if (other == this) + { + return true; + } + if (!(other instanceof Version)) + { + return false; + } + + Version that = (Version) other; + return same(that); + } + + /** + * Get the hashcode, higher 8 bits being the major version and lower 8 bits + * the minor version. + */ + public int hashCode() + { + return major << 8 | minor; + } + + /** + * Read from the input stream, major number first. + * @param in a stream to read from. + */ + public static Version read_version(java.io.InputStream in) + { + try + { + int major = in.read() & 0xFF; + int minor = in.read() & 0xFF; + return new Version(major, minor); + } + catch (IOException ex) + { + MARSHAL m = new MARSHAL("IOException while reading message header"); + m.initCause(ex); + m.minor = Minor.Header; + throw m; + } + } + + /** + * Returns true if the versions are the same. + * + * @param that the other version to compare. + * + * @return true if the versions are the same. + */ + public boolean same(Version that) + { + return major == that.major && minor == that.minor; + } + + /** + * Returns true if the given version is higher than + * or equals to the version, supplied as parameter + * in the form of two integers. + * + * @param a_major major number of the version to compare. + * @param a_minor minor number of the version to compare. + * + * @return true if this version is higher than or equals to + * the version v. + */ + public boolean since_inclusive(int a_major, int a_minor) + { + if (major > a_major) + return true; + else if (major < a_major) + return false; + else + + // Major numbers are equal. + return minor >= a_minor; + } + + /** + * Return the string representation, in the form + * major.minor. + */ + public String toString() + { + return major + "." + minor; + } + + /** + * Returs true if the given version is lower or equal to the + * version, specified by the provided minor and major version + * number. This means, the version, specified by these two numbers, + * should be supported by the current version. + * + * @param a_major a major version number. + * @param a_minor a minor version number. + * + * @return true if the current version should be supported by the + * version, specified by the two passed numbers. + */ + public boolean until_inclusive(int a_major, int a_minor) + { + if (major < a_major) + return true; + else if (major > a_major) + return false; + else + + // Major numbers are equal. + return minor <= a_minor; + } + + /** + * Write into the output stream, major number first. + * + * @param out a stream to write into. + */ + public void write(java.io.OutputStream out) + { + try + { + out.write(major & 0xFF); + out.write(minor & 0xFF); + } + catch (IOException ex) + { + MARSHAL m = new MARSHAL("IOException while writing message header"); + m.minor = Minor.Header; + m.initCause(ex); + throw m; + } + } + +} |