1 /* 2 * Copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * * Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * * Neither the name of JSR-310 nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 package org.threeten.bp.jdk8; 33 34 import org.threeten.bp.temporal.ChronoField; 35 import org.threeten.bp.temporal.TemporalAccessor; 36 import org.threeten.bp.temporal.TemporalField; 37 import org.threeten.bp.temporal.TemporalQueries; 38 import org.threeten.bp.temporal.TemporalQuery; 39 import org.threeten.bp.temporal.UnsupportedTemporalTypeException; 40 import org.threeten.bp.temporal.ValueRange; 41 42 /** 43 * A temporary class providing implementations that will become default interface 44 * methods once integrated into JDK 8. 45 */ 46 public abstract class DefaultInterfaceTemporalAccessor implements TemporalAccessor { 47 48 @Override range(TemporalField field)49 public ValueRange range(TemporalField field) { 50 if (field instanceof ChronoField) { 51 if (isSupported(field)) { 52 return field.range(); 53 } 54 throw new UnsupportedTemporalTypeException("Unsupported field: " + field); 55 } 56 return field.rangeRefinedBy(this); 57 } 58 59 @Override get(TemporalField field)60 public int get(TemporalField field) { 61 return range(field).checkValidIntValue(getLong(field), field); 62 } 63 64 @Override query(TemporalQuery<R> query)65 public <R> R query(TemporalQuery<R> query) { 66 if (query == TemporalQueries.zoneId() || query == TemporalQueries.chronology() || query == TemporalQueries.precision()) { 67 return null; 68 } 69 return query.queryFrom(this); 70 } 71 72 } 73