1 // 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html#License 3 /* 4 ********************************************************************** 5 * Copyright (c) 2013-2014, International Business Machines 6 * Corporation and others. All Rights Reserved. 7 ********************************************************************** 8 */ 9 package com.ibm.icu.impl; 10 11 import java.text.FieldPosition; 12 13 /** 14 * DontCareFieldPosition is a subclass of FieldPosition that indicates that the 15 * caller is not interested in the start and end position of any field. 16 * <p> 17 * DontCareFieldPosition is a singleton, and its instance is immutable. 18 * <p> 19 * A <code>format</code> method use <code>fpos == DontCareFieldPosition.INSTANCE</code> 20 * to tell whether or not it needs to calculate a field position. 21 * 22 */ 23 public final class DontCareFieldPosition extends FieldPosition { 24 25 public static final DontCareFieldPosition INSTANCE = new DontCareFieldPosition(); 26 27 private DontCareFieldPosition() { 28 // Pick some random number to be sure that we don't accidentally match with 29 // a field. 30 super(-913028704); 31 } 32 33 @Override 34 public void setBeginIndex(int i) { 35 // Do nothing 36 } 37 38 @Override 39 public void setEndIndex(int i) { 40 // Do nothing 41 } 42 43 } 44
