[120] | 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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