| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * * Neither the name of JSR-310 nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package java.time.format; |
| |
| /** |
| * Enumeration of ways to handle the positive/negative sign. |
| * <p> |
| * The formatting engine allows the positive and negative signs of numbers |
| * to be controlled using this enum. |
| * See {@link DateTimeFormatterBuilder} for usage. |
| * |
| * @implSpec |
| * This is an immutable and thread-safe enum. |
| * |
| * @since 1.8 |
| */ |
| public enum SignStyle { |
| |
| /** |
| * Style to output the sign only if the value is negative. |
| * <p> |
| * In strict parsing, the negative sign will be accepted and the positive sign rejected. |
| * In lenient parsing, any sign will be accepted. |
| */ |
| NORMAL, |
| /** |
| * Style to always output the sign, where zero will output '+'. |
| * <p> |
| * In strict parsing, the absence of a sign will be rejected. |
| * In lenient parsing, any sign will be accepted, with the absence |
| * of a sign treated as a positive number. |
| */ |
| ALWAYS, |
| /** |
| * Style to never output sign, only outputting the absolute value. |
| * <p> |
| * In strict parsing, any sign will be rejected. |
| * In lenient parsing, any sign will be accepted unless the width is fixed. |
| */ |
| NEVER, |
| /** |
| * Style to block negative values, throwing an exception on printing. |
| * <p> |
| * In strict parsing, any sign will be rejected. |
| * In lenient parsing, any sign will be accepted unless the width is fixed. |
| */ |
| NOT_NEGATIVE, |
| /** |
| * Style to always output the sign if the value exceeds the pad width. |
| * A negative value will always output the '-' sign. |
| * <p> |
| * In strict parsing, the sign will be rejected unless the pad width is exceeded. |
| * In lenient parsing, any sign will be accepted, with the absence |
| * of a sign treated as a positive number. |
| */ |
| EXCEEDS_PAD; |
| |
| /** |
| * Parse helper. |
| * |
| * @param positive true if positive sign parsed, false for negative sign |
| * @param strict true if strict, false if lenient |
| * @param fixedWidth true if fixed width, false if not |
| * @return |
| */ |
| boolean parse(boolean positive, boolean strict, boolean fixedWidth) { |
| switch (ordinal()) { |
| case 0: // NORMAL |
| // valid if negative or (positive and lenient) |
| return !positive || !strict; |
| case 1: // ALWAYS |
| case 4: // EXCEEDS_PAD |
| return true; |
| default: |
| // valid if lenient and not fixed width |
| return !strict && !fixedWidth; |
| } |
| } |
| |
| } |