| 1 | /* |
| 2 | * Copyright 2001-2005 Stephen Colebourne |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.joda.time.field; |
| 17 | |
| 18 | import org.joda.time.DateTimeField; |
| 19 | |
| 20 | /** |
| 21 | * Converts a lenient DateTimeField into a strict one. By being strict, the set |
| 22 | * throws an IllegalArgumentException if the value is out of bounds. |
| 23 | * <p> |
| 24 | * StrictDateTimeField is thread-safe and immutable. |
| 25 | * |
| 26 | * @author Brian S O'Neill |
| 27 | * @see org.joda.time.chrono.StrictChronology |
| 28 | * @see LenientDateTimeField |
| 29 | * @since 1.0 |
| 30 | */ |
| 31 | public class StrictDateTimeField extends DelegatedDateTimeField { |
| 32 | |
| 33 | private static final long serialVersionUID = 3154803964207950910L; |
| 34 | |
| 35 | /** |
| 36 | * Returns a strict version of the given field. If it is already strict, |
| 37 | * then it is returned as-is. Otherwise, a new StrictDateTimeField is |
| 38 | * returned. |
| 39 | */ |
| 40 | public static DateTimeField getInstance(DateTimeField field) { |
| 41 | if (field == null) { |
| 42 | return null; |
| 43 | } |
| 44 | if (field instanceof LenientDateTimeField) { |
| 45 | field = ((LenientDateTimeField)field).getWrappedField(); |
| 46 | } |
| 47 | if (!field.isLenient()) { |
| 48 | return field; |
| 49 | } |
| 50 | return new StrictDateTimeField(field); |
| 51 | } |
| 52 | |
| 53 | protected StrictDateTimeField(DateTimeField field) { |
| 54 | super(field); |
| 55 | } |
| 56 | |
| 57 | public final boolean isLenient() { |
| 58 | return false; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Does a bounds check before setting the value. |
| 63 | * |
| 64 | * @throws IllegalArgumentException if the value is invalid |
| 65 | */ |
| 66 | public long set(long instant, int value) { |
| 67 | FieldUtils.verifyValueBounds |
| 68 | (this, value, getMinimumValue(instant), getMaximumValue(instant)); |
| 69 | return super.set(instant, value); |
| 70 | } |
| 71 | } |