1 /* 2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.jdi; 27 28 /** 29 * The value assigned to a field or variable of primitive type in a 30 * target VM. Each primitive values is accessed through a subinterface 31 * of this interface. 32 * 33 * @author Robert Field 34 * @author Gordon Hirsch 35 * @author James McIlree 36 * @since 1.3 37 */ 38 @jdk.Exported 39 public interface PrimitiveValue extends Value { 40 41 /** 42 * Converts this value to a BooleanValue and returns the result 43 * as a boolean. 44 * 45 * @return <code>true</code> if this value is non-zero (or 46 * <code>true</code> if already a BooleanValue); false otherwise. 47 */ 48 boolean booleanValue(); 49 50 /** 51 * Converts this value to a ByteValue and returns the result 52 * as a byte. The value will be narrowed as 53 * necessary, and magnitude or precision information 54 * may be lost (as if the primitive had been cast to a byte). 55 * 56 * @return the value, converted to byte 57 */ 58 byte byteValue(); 59 60 /** 61 * Converts this value to a CharValue and returns the result 62 * as a char. The value will be narrowed or widened as 63 * necessary, and magnitude or precision information 64 * may be lost (as if the primitive had been cast to a char, 65 * in the narrowing case). 66 * 67 * @return the value, converted to char 68 */ 69 char charValue(); 70 71 /** 72 * Converts this value to a ShortValue and returns the result 73 * as a short. The value will be narrowed or widened as 74 * necessary, and magnitude or precision information 75 * may be lost (as if the primitive had been cast to a short, 76 * in the narrowing case). 77 * 78 * @return the value, converted to short 79 */ 80 short shortValue(); 81 82 /** 83 * Converts this value to an IntegerValue and returns the result 84 * as an int. The value will be narrowed or widened as 85 * necessary, and magnitude or precision information 86 * may be lost (as if the primitive had been cast to an int, 87 * in the narrowing case). 88 * 89 * @return the value, converted to int 90 */ 91 int intValue(); 92 93 /** 94 * Converts this value to a LongValue and returns the result 95 * as a long. The value will be narrowed or widened as 96 * necessary, and magnitude or precision information 97 * may be lost (as if the primitive had been cast to a long, 98 * in the narrowing case). 99 * 100 * @return the value, converted to long 101 */ 102 long longValue(); 103 104 /** 105 * Converts this value to a FloatValue and returns the result 106 * as a float. The value will be narrowed or widened as 107 * necessary, and magnitude or precision information 108 * may be lost (as if the primitive had been cast to a float, 109 * in the narrowing case). 110 * 111 * @return the value, converted to float 112 */ 113 float floatValue(); 114 115 /** 116 * Converts this value to a DoubleValue and returns the result 117 * as a double. The value will be widened as 118 * necessary, and precision information 119 * may be lost. 120 * 121 * @return the value, converted to double 122 */ 123 double doubleValue(); 124 } 125
