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Diffstat (limited to 'libjava/classpath/gnu/javax/crypto/assembly/Direction.java')
-rw-r--r-- | libjava/classpath/gnu/javax/crypto/assembly/Direction.java | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/assembly/Direction.java b/libjava/classpath/gnu/javax/crypto/assembly/Direction.java new file mode 100644 index 00000000000..2e8ef1145a4 --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/assembly/Direction.java @@ -0,0 +1,92 @@ +/* Direction.java -- + Copyright (C) 2003, 2006 Free Software Foundation, Inc. + +This file is a 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 of the License, 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; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, 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.javax.crypto.assembly; + +/** + * <p>An enumeration type for wiring {@link Stage} instances into {@link + * Cascade} Cipher chains, as well as for operating a {@link Cascade} in a + * given direction.</p> + * + * <p>The possible values for this type are two:</p> + * <ol> + * <li>FORWARD: equivalent to {@link gnu.crypto.mode.IMode#ENCRYPTION}, and + * its inverse value</li> + * <li>REVERSED: equivalent to {@link gnu.crypto.mode.IMode#DECRYPTION}.</li> + * </ol> + * + * @version $Revision: 1.1 $ + */ +public final class Direction +{ + + // Constants and variables + // ------------------------------------------------------------------------- + + public static final Direction FORWARD = new Direction(1); + + public static final Direction REVERSED = new Direction(2); + + private int value; + + // Constructor(s) + // ------------------------------------------------------------------------- + + private Direction(int value) + { + super(); + + this.value = value; + } + + // Class methods + // ------------------------------------------------------------------------- + + public static final Direction reverse(Direction d) + { + return (d.equals(FORWARD) ? REVERSED : FORWARD); + } + + // Instance methods + // ------------------------------------------------------------------------- + + public String toString() + { + return (this == FORWARD ? "forward" : "reversed"); + } +} |