Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.object/src/com/oracle/truffle/object/Transition.java @ 22367:1b48778cee21
add toString() methods to transitions
author | Andreas Woess <andreas.woess@oracle.com> |
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date | Fri, 13 Nov 2015 16:25:04 +0100 |
parents | dc83cc1f94f2 |
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1 /* |
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.truffle.object; |
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24 |
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25 import java.util.Objects; |
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26 |
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27 import com.oracle.truffle.api.object.ObjectType; |
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28 import com.oracle.truffle.api.object.Property; |
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29 |
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30 public abstract class Transition { |
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31 @Override |
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32 public int hashCode() { |
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33 int result = 1; |
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34 return result; |
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35 } |
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36 |
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37 @Override |
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38 public boolean equals(Object obj) { |
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39 if (this == obj) { |
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40 return true; |
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41 } |
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42 if (obj == null) { |
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43 return false; |
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44 } |
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45 if (getClass() != obj.getClass()) { |
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46 return false; |
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47 } |
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48 return true; |
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49 } |
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50 |
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51 public abstract boolean isDirect(); |
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52 |
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53 public abstract static class PropertyTransition extends Transition { |
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54 private final Property property; |
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55 |
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56 public PropertyTransition(Property property) { |
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57 this.property = property; |
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58 } |
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59 |
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60 @Override |
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61 public int hashCode() { |
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62 final int prime = 31; |
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63 int result = super.hashCode(); |
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64 result = prime * result + ((property == null) ? 0 : property.hashCode()); |
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65 return result; |
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66 } |
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67 |
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68 @Override |
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69 public boolean equals(Object obj) { |
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70 if (!super.equals(obj)) { |
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71 return false; |
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72 } |
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73 PropertyTransition other = (PropertyTransition) obj; |
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74 if (!Objects.equals(property, other.property)) { |
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75 return false; |
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76 } |
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77 return true; |
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78 } |
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79 |
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80 public Property getProperty() { |
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81 return property; |
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82 } |
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83 } |
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84 |
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85 public static final class AddPropertyTransition extends PropertyTransition { |
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86 public AddPropertyTransition(Property property) { |
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87 super(property); |
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88 } |
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89 |
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90 @Override |
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91 public boolean isDirect() { |
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92 return true; |
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93 } |
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94 |
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95 @Override |
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96 public String toString() { |
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97 return String.format("add(%s)", getProperty()); |
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98 } |
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99 } |
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100 |
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101 public static final class RemovePropertyTransition extends PropertyTransition { |
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102 public RemovePropertyTransition(Property property) { |
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103 super(property); |
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104 } |
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105 |
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106 @Override |
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107 public boolean isDirect() { |
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108 return false; |
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109 } |
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110 |
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111 @Override |
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112 public String toString() { |
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113 return String.format("remove(%s)", getProperty()); |
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114 } |
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115 } |
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116 |
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117 public static final class ObjectTypeTransition extends Transition { |
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118 private final ObjectType objectType; |
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119 |
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120 public ObjectTypeTransition(ObjectType objectType) { |
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121 this.objectType = objectType; |
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122 } |
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123 |
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124 public ObjectType getObjectType() { |
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125 return objectType; |
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126 } |
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127 |
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128 @Override |
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129 public boolean equals(Object other) { |
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130 return super.equals(other) && Objects.equals(objectType, ((ObjectTypeTransition) other).objectType); |
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131 } |
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132 |
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133 @Override |
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134 public int hashCode() { |
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135 final int prime = 31; |
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136 int result = super.hashCode(); |
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137 result = prime * result + ((objectType == null) ? 0 : objectType.hashCode()); |
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138 return result; |
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139 } |
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140 |
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141 @Override |
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142 public boolean isDirect() { |
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143 return true; |
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144 } |
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145 |
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146 @Override |
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147 public String toString() { |
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148 return String.format("objectType(%s)", getObjectType()); |
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149 } |
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150 } |
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151 |
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152 public abstract static class AbstractReplacePropertyTransition extends PropertyTransition { |
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153 private final Property after; |
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154 |
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155 public AbstractReplacePropertyTransition(Property before, Property after) { |
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156 super(before); |
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157 this.after = after; |
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158 } |
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159 |
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160 public Property getPropertyBefore() { |
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161 return this.getProperty(); |
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162 } |
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163 |
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164 public Property getPropertyAfter() { |
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165 return after; |
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166 } |
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167 |
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168 @Override |
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169 public boolean equals(Object obj) { |
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170 return super.equals(obj) && this.after.equals(((AbstractReplacePropertyTransition) obj).after); |
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171 } |
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172 |
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173 @Override |
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174 public int hashCode() { |
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175 final int prime = 31; |
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176 int result = super.hashCode(); |
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177 result = prime * result + after.hashCode(); |
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178 return result; |
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179 } |
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180 |
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181 @Override |
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182 public String toString() { |
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183 return String.format("replace(%s,%s)", getPropertyBefore(), getPropertyAfter()); |
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184 } |
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185 } |
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186 |
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187 public static final class IndirectReplacePropertyTransition extends AbstractReplacePropertyTransition { |
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188 public IndirectReplacePropertyTransition(Property before, Property after) { |
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189 super(before, after); |
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190 } |
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191 |
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192 @Override |
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193 public boolean isDirect() { |
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194 return false; |
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195 } |
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196 } |
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197 |
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198 public static final class DirectReplacePropertyTransition extends AbstractReplacePropertyTransition { |
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199 public DirectReplacePropertyTransition(Property before, Property after) { |
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200 super(before, after); |
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201 } |
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202 |
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203 @Override |
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204 public boolean isDirect() { |
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205 return true; |
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206 } |
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207 } |
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208 |
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209 public static final class ReservePrimitiveArrayTransition extends Transition { |
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210 public ReservePrimitiveArrayTransition() { |
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211 } |
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212 |
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213 @Override |
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214 public boolean isDirect() { |
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215 return true; |
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216 } |
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217 } |
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218 |
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219 public String getShortName() { |
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220 return this.getClass().getSimpleName().replaceFirst("Transition$", "").toLowerCase(); |
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221 } |
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222 } |