1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.record.compiler; |
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20 | |
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21 | import java.util.Map; |
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22 | |
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23 | |
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24 | /** |
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25 | * Abstract Base class for all types supported by Hadoop Record I/O. |
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26 | */ |
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27 | abstract public class JType { |
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28 | |
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29 | static String toCamelCase(String name) { |
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30 | char firstChar = name.charAt(0); |
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31 | if (Character.isLowerCase(firstChar)) { |
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32 | return ""+Character.toUpperCase(firstChar) + name.substring(1); |
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33 | } |
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34 | return name; |
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35 | } |
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36 | |
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37 | JavaType javaType; |
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38 | CppType cppType; |
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39 | CType cType; |
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40 | |
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41 | abstract class JavaType { |
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42 | private String name; |
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43 | private String methodSuffix; |
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44 | private String wrapper; |
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45 | private String typeIDByteString; // points to TypeID.RIOType |
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46 | |
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47 | JavaType(String javaname, |
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48 | String suffix, |
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49 | String wrapper, |
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50 | String typeIDByteString) { |
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51 | this.name = javaname; |
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52 | this.methodSuffix = suffix; |
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53 | this.wrapper = wrapper; |
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54 | this.typeIDByteString = typeIDByteString; |
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55 | } |
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56 | |
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57 | void genDecl(CodeBuffer cb, String fname) { |
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58 | cb.append("private "+name+" "+fname+";\n"); |
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59 | } |
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60 | |
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61 | void genStaticTypeInfo(CodeBuffer cb, String fname) { |
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62 | cb.append(Consts.RTI_VAR + ".addField(\"" + fname + "\", " + |
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63 | getTypeIDObjectString() + ");\n"); |
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64 | } |
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65 | |
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66 | abstract String getTypeIDObjectString(); |
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67 | |
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68 | void genSetRTIFilter(CodeBuffer cb, Map<String, Integer> nestedStructMap) { |
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69 | // do nothing by default |
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70 | return; |
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71 | } |
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72 | |
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73 | /*void genRtiFieldCondition(CodeBuffer cb, String fname, int ct) { |
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74 | cb.append("if ((tInfo.fieldID.equals(\"" + fname + "\")) && (typeVal ==" + |
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75 | " org.apache.hadoop.record.meta." + getTypeIDByteString() + ")) {\n"); |
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76 | cb.append("rtiFilterFields[i] = " + ct + ";\n"); |
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77 | cb.append("}\n"); |
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78 | } |
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79 | |
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80 | void genRtiNestedFieldCondition(CodeBuffer cb, String varName, int ct) { |
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81 | cb.append("if (" + varName + ".getElementTypeID().getTypeVal() == " + |
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82 | "org.apache.hadoop.record.meta." + getTypeIDByteString() + |
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83 | ") {\n"); |
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84 | cb.append("rtiFilterFields[i] = " + ct + ";\n"); |
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85 | cb.append("}\n"); |
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86 | }*/ |
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87 | |
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88 | void genConstructorParam(CodeBuffer cb, String fname) { |
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89 | cb.append("final "+name+" "+fname); |
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90 | } |
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91 | |
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92 | void genGetSet(CodeBuffer cb, String fname) { |
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93 | cb.append("public "+name+" get"+toCamelCase(fname)+"() {\n"); |
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94 | cb.append("return "+fname+";\n"); |
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95 | cb.append("}\n"); |
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96 | cb.append("public void set"+toCamelCase(fname)+"(final "+name+" "+fname+") {\n"); |
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97 | cb.append("this."+fname+"="+fname+";\n"); |
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98 | cb.append("}\n"); |
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99 | } |
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100 | |
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101 | String getType() { |
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102 | return name; |
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103 | } |
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104 | |
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105 | String getWrapperType() { |
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106 | return wrapper; |
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107 | } |
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108 | |
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109 | String getMethodSuffix() { |
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110 | return methodSuffix; |
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111 | } |
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112 | |
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113 | String getTypeIDByteString() { |
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114 | return typeIDByteString; |
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115 | } |
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116 | |
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117 | void genWriteMethod(CodeBuffer cb, String fname, String tag) { |
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118 | cb.append(Consts.RECORD_OUTPUT + ".write"+methodSuffix + |
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119 | "("+fname+",\""+tag+"\");\n"); |
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120 | } |
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121 | |
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122 | void genReadMethod(CodeBuffer cb, String fname, String tag, boolean decl) { |
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123 | if (decl) { |
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124 | cb.append(name+" "+fname+";\n"); |
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125 | } |
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126 | cb.append(fname+"=" + Consts.RECORD_INPUT + ".read" + |
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127 | methodSuffix+"(\""+tag+"\");\n"); |
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128 | } |
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129 | |
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130 | void genCompareTo(CodeBuffer cb, String fname, String other) { |
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131 | cb.append(Consts.RIO_PREFIX + "ret = ("+fname+" == "+other+")? 0 :(("+ |
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132 | fname+"<"+other+")?-1:1);\n"); |
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133 | } |
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134 | |
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135 | abstract void genCompareBytes(CodeBuffer cb); |
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136 | |
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137 | abstract void genSlurpBytes(CodeBuffer cb, String b, String s, String l); |
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138 | |
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139 | void genEquals(CodeBuffer cb, String fname, String peer) { |
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140 | cb.append(Consts.RIO_PREFIX + "ret = ("+fname+"=="+peer+");\n"); |
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141 | } |
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142 | |
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143 | void genHashCode(CodeBuffer cb, String fname) { |
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144 | cb.append(Consts.RIO_PREFIX + "ret = (int)"+fname+";\n"); |
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145 | } |
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146 | |
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147 | void genConstructorSet(CodeBuffer cb, String fname) { |
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148 | cb.append("this."+fname+" = "+fname+";\n"); |
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149 | } |
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150 | |
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151 | void genClone(CodeBuffer cb, String fname) { |
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152 | cb.append(Consts.RIO_PREFIX + "other."+fname+" = this."+fname+";\n"); |
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153 | } |
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154 | } |
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155 | |
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156 | abstract class CppType { |
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157 | private String name; |
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158 | |
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159 | CppType(String cppname) { |
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160 | name = cppname; |
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161 | } |
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162 | |
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163 | void genDecl(CodeBuffer cb, String fname) { |
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164 | cb.append(name+" "+fname+";\n"); |
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165 | } |
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166 | |
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167 | void genStaticTypeInfo(CodeBuffer cb, String fname) { |
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168 | cb.append("p->addField(new ::std::string(\"" + |
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169 | fname + "\"), " + getTypeIDObjectString() + ");\n"); |
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170 | } |
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171 | |
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172 | void genGetSet(CodeBuffer cb, String fname) { |
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173 | cb.append("virtual "+name+" get"+toCamelCase(fname)+"() const {\n"); |
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174 | cb.append("return "+fname+";\n"); |
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175 | cb.append("}\n"); |
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176 | cb.append("virtual void set"+toCamelCase(fname)+"("+name+" m_) {\n"); |
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177 | cb.append(fname+"=m_;\n"); |
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178 | cb.append("}\n"); |
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179 | } |
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180 | |
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181 | abstract String getTypeIDObjectString(); |
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182 | |
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183 | void genSetRTIFilter(CodeBuffer cb) { |
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184 | // do nothing by default |
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185 | return; |
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186 | } |
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187 | |
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188 | String getType() { |
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189 | return name; |
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190 | } |
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191 | } |
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192 | |
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193 | class CType { |
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194 | |
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195 | } |
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196 | |
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197 | abstract String getSignature(); |
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198 | |
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199 | void setJavaType(JavaType jType) { |
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200 | this.javaType = jType; |
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201 | } |
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202 | |
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203 | JavaType getJavaType() { |
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204 | return javaType; |
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205 | } |
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206 | |
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207 | void setCppType(CppType cppType) { |
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208 | this.cppType = cppType; |
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209 | } |
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210 | |
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211 | CppType getCppType() { |
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212 | return cppType; |
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213 | } |
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214 | |
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215 | void setCType(CType cType) { |
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216 | this.cType = cType; |
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217 | } |
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218 | |
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219 | CType getCType() { |
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220 | return cType; |
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221 | } |
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222 | } |
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