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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.nio; | |
| 27 | + | |
| 28 | + | |
| 29 | +/** | |
| 30 | + * A typesafe enumeration for byte orders. | |
| 31 | + * | |
| 32 | + * @author Mark Reinhold | |
| 33 | + * @author JSR-51 Expert Group | |
| 34 | + * @since 1.4 | |
| 35 | + */ | |
| 36 | + | |
| 37 | +public final class ByteOrder { | |
| 38 | + | |
| 39 | + private String name; | |
| 40 | + | |
| 41 | + private ByteOrder(String name) { | |
| 42 | + this.name = name; | |
| 43 | + } | |
| 44 | + | |
| 45 | + /** | |
| 46 | + * Constant denoting big-endian byte order. In this order, the bytes of a | |
| 47 | + * multibyte value are ordered from most significant to least significant. | |
| 48 | + * </p> | |
| 49 | + */ | |
| 50 | + public static final ByteOrder BIG_ENDIAN | |
| 51 | + = new ByteOrder("BIG_ENDIAN"); | |
| 52 | + | |
| 53 | + /** | |
| 54 | + * Constant denoting little-endian byte order. In this order, the bytes of | |
| 55 | + * a multibyte value are ordered from least significant to most | |
| 56 | + * significant. </p> | |
| 57 | + */ | |
| 58 | + public static final ByteOrder LITTLE_ENDIAN | |
| 59 | + = new ByteOrder("LITTLE_ENDIAN"); | |
| 60 | + | |
| 61 | + /** | |
| 62 | + * Retrieves the native byte order of the underlying platform. | |
| 63 | + * | |
| 64 | + * <p> This method is defined so that performance-sensitive Java code can | |
| 65 | + * allocate direct buffers with the same byte order as the hardware. | |
| 66 | + * Native code libraries are often more efficient when such buffers are | |
| 67 | + * used. </p> | |
| 68 | + * | |
| 69 | + * @return The native byte order of the hardware upon which this Java | |
| 70 | + * virtual machine is running | |
| 71 | + */ | |
| 72 | + public static ByteOrder nativeOrder() { | |
| 73 | + return Bits.byteOrder(); | |
| 74 | + } | |
| 75 | + | |
| 76 | + /** | |
| 77 | + * Constructs a string describing this object. | |
| 78 | + * | |
| 79 | + * <p> This method returns the string <tt>"BIG_ENDIAN"</tt> for {@link | |
| 80 | + * #BIG_ENDIAN} and <tt>"LITTLE_ENDIAN"</tt> for {@link #LITTLE_ENDIAN}. | |
| 81 | + * </p> | |
| 82 | + * | |
| 83 | + * @return The specified string | |
| 84 | + */ | |
| 85 | + public String toString() { | |
| 86 | + return name; | |
| 87 | + } | |
| 88 | + | |
| 89 | +} | |