1 /* 2 * Copyright 2001-2009 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.convert; 17 18 import org.joda.time.Chronology; 19 20 /** 21 * LongConverter converts a Long to an instant, partial or duration. 22 * The Long value represents milliseconds in the ISO chronology. 23 * 24 * @author Stephen Colebourne 25 * @author Brian S O'Neill 26 * @since 1.0 27 */ 28 class LongConverter extends AbstractConverter 29 implements InstantConverter, PartialConverter, DurationConverter { 30 31 /** 32 * Singleton instance. 33 */ 34 static final LongConverter INSTANCE = new LongConverter(); 35 36 /** 37 * Restricted constructor. 38 */ 39 protected LongConverter() { 40 super(); 41 } 42 43 //----------------------------------------------------------------------- 44 /** 45 * Gets the millisecond instant, which is the Long value. 46 * 47 * @param object the Long to convert, must not be null 48 * @param chrono the chronology to use, which is always non-null 49 * @return the millisecond value 50 * @throws NullPointerException if the object is null 51 * @throws ClassCastException if the object is an invalid type 52 */ 53 public long getInstantMillis(Object object, Chronology chrono) { 54 return ((Long) object).longValue(); 55 } 56 57 //----------------------------------------------------------------------- 58 /** 59 * Gets the millisecond duration, which is the Long value. 60 * 61 * @param object the Long to convert, must not be null 62 * @return the millisecond duration 63 * @throws NullPointerException if the object is null 64 * @throws ClassCastException if the object is an invalid type 65 */ 66 public long getDurationMillis(Object object) { 67 return ((Long) object).longValue(); 68 } 69 70 //----------------------------------------------------------------------- 71 /** 72 * Returns Long.class. 73 * 74 * @return Long.class 75 */ 76 public Class<?> getSupportedType() { 77 return Long.class; 78 } 79 80 }