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7 | Uses of Interface org.apache.hadoop.mapred.Mapper (Hadoop 0.20.1 API) |
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80 | |
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81 | <HR> |
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82 | <CENTER> |
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83 | <H2> |
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84 | <B>Uses of Interface<br>org.apache.hadoop.mapred.Mapper</B></H2> |
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85 | </CENTER> |
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86 | |
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87 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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88 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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89 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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90 | Packages that use <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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91 | </TR> |
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92 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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93 | <TD><A HREF="#org.apache.hadoop.contrib.index.example"><B>org.apache.hadoop.contrib.index.example</B></A></TD> |
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94 | <TD> </TD> |
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95 | </TR> |
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96 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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97 | <TD><A HREF="#org.apache.hadoop.contrib.index.mapred"><B>org.apache.hadoop.contrib.index.mapred</B></A></TD> |
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98 | <TD> </TD> |
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99 | </TR> |
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100 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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101 | <TD><A HREF="#org.apache.hadoop.contrib.utils.join"><B>org.apache.hadoop.contrib.utils.join</B></A></TD> |
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102 | <TD> </TD> |
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103 | </TR> |
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104 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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105 | <TD><A HREF="#org.apache.hadoop.examples"><B>org.apache.hadoop.examples</B></A></TD> |
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106 | <TD>Hadoop example code. </TD> |
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107 | </TR> |
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108 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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109 | <TD><A HREF="#org.apache.hadoop.examples.dancing"><B>org.apache.hadoop.examples.dancing</B></A></TD> |
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110 | <TD>This package is a distributed implementation of Knuth's <a |
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111 | href="http://en.wikipedia.org/wiki/Dancing_Links">dancing links</a> |
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112 | algorithm that can run under Hadoop. </TD> |
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113 | </TR> |
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114 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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115 | <TD><A HREF="#org.apache.hadoop.examples.terasort"><B>org.apache.hadoop.examples.terasort</B></A></TD> |
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116 | <TD>This package consists of 3 map/reduce applications for Hadoop to |
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117 | compete in the annual <a |
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118 | href="http://www.hpl.hp.com/hosted/sortbenchmark" target="_top">terabyte sort</a> |
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119 | competition. </TD> |
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120 | </TR> |
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121 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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122 | <TD><A HREF="#org.apache.hadoop.mapred"><B>org.apache.hadoop.mapred</B></A></TD> |
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123 | <TD>A software framework for easily writing applications which process vast |
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124 | amounts of data (multi-terabyte data-sets) parallelly on large clusters |
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125 | (thousands of nodes) built of commodity hardware in a reliable, fault-tolerant |
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126 | manner. </TD> |
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127 | </TR> |
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128 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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129 | <TD><A HREF="#org.apache.hadoop.mapred.lib"><B>org.apache.hadoop.mapred.lib</B></A></TD> |
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130 | <TD>Library of generally useful mappers, reducers, and partitioners. </TD> |
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131 | </TR> |
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132 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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133 | <TD><A HREF="#org.apache.hadoop.mapred.lib.aggregate"><B>org.apache.hadoop.mapred.lib.aggregate</B></A></TD> |
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134 | <TD>Classes for performing various counting and aggregations. </TD> |
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135 | </TR> |
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136 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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137 | <TD><A HREF="#org.apache.hadoop.streaming"><B>org.apache.hadoop.streaming</B></A></TD> |
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138 | <TD><tt>Hadoop Streaming</tt> is a utility which allows users to create and run |
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139 | Map-Reduce jobs with any executables (e.g. </TD> |
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140 | </TR> |
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141 | </TABLE> |
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142 | |
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143 | <P> |
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144 | <A NAME="org.apache.hadoop.contrib.index.example"><!-- --></A> |
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145 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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146 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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147 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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148 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/contrib/index/example/package-summary.html">org.apache.hadoop.contrib.index.example</A></FONT></TH> |
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149 | </TR> |
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150 | </TABLE> |
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151 | |
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152 | <P> |
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153 | |
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154 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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155 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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156 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/contrib/index/example/package-summary.html">org.apache.hadoop.contrib.index.example</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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157 | </TR> |
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158 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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159 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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160 | <CODE> class</CODE></FONT></TD> |
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161 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/index/example/IdentityLocalAnalysis.html" title="class in org.apache.hadoop.contrib.index.example">IdentityLocalAnalysis</A></B></CODE> |
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162 | |
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163 | <BR> |
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164 | Identity local analysis maps inputs directly into outputs.</TD> |
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165 | </TR> |
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166 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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167 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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168 | <CODE> class</CODE></FONT></TD> |
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169 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/index/example/LineDocLocalAnalysis.html" title="class in org.apache.hadoop.contrib.index.example">LineDocLocalAnalysis</A></B></CODE> |
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170 | |
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171 | <BR> |
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172 | Convert LineDocTextAndOp to DocumentAndOp as required by ILocalAnalysis.</TD> |
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173 | </TR> |
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174 | </TABLE> |
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175 | |
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176 | <P> |
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177 | <A NAME="org.apache.hadoop.contrib.index.mapred"><!-- --></A> |
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178 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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179 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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180 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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181 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/contrib/index/mapred/package-summary.html">org.apache.hadoop.contrib.index.mapred</A></FONT></TH> |
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182 | </TR> |
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183 | </TABLE> |
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184 | |
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185 | <P> |
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186 | |
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187 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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188 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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189 | <TH ALIGN="left" COLSPAN="2">Subinterfaces of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/contrib/index/mapred/package-summary.html">org.apache.hadoop.contrib.index.mapred</A></FONT></TH> |
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190 | </TR> |
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191 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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192 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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193 | <CODE> interface</CODE></FONT></TD> |
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194 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/index/mapred/ILocalAnalysis.html" title="interface in org.apache.hadoop.contrib.index.mapred">ILocalAnalysis<K extends WritableComparable,V extends Writable></A></B></CODE> |
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195 | |
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196 | <BR> |
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197 | Application specific local analysis.</TD> |
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198 | </TR> |
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199 | </TABLE> |
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200 | |
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201 | <P> |
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202 | |
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203 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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204 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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205 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/contrib/index/mapred/package-summary.html">org.apache.hadoop.contrib.index.mapred</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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206 | </TR> |
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207 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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208 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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209 | <CODE> class</CODE></FONT></TD> |
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210 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/index/mapred/IndexUpdateMapper.html" title="class in org.apache.hadoop.contrib.index.mapred">IndexUpdateMapper<K extends WritableComparable,V extends Writable></A></B></CODE> |
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211 | |
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212 | <BR> |
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213 | This class applies local analysis on a key-value pair and then convert the |
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214 | result docid-operation pair to a shard-and-intermediate form pair.</TD> |
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215 | </TR> |
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216 | </TABLE> |
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217 | |
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218 | <P> |
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219 | <A NAME="org.apache.hadoop.contrib.utils.join"><!-- --></A> |
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220 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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221 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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222 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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223 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/contrib/utils/join/package-summary.html">org.apache.hadoop.contrib.utils.join</A></FONT></TH> |
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224 | </TR> |
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225 | </TABLE> |
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226 | |
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227 | <P> |
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228 | |
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229 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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230 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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231 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/contrib/utils/join/package-summary.html">org.apache.hadoop.contrib.utils.join</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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232 | </TR> |
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233 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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234 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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235 | <CODE> class</CODE></FONT></TD> |
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236 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/utils/join/DataJoinMapperBase.html" title="class in org.apache.hadoop.contrib.utils.join">DataJoinMapperBase</A></B></CODE> |
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237 | |
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238 | <BR> |
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239 | This abstract class serves as the base class for the mapper class of a data |
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240 | join job.</TD> |
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241 | </TR> |
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242 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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243 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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244 | <CODE> class</CODE></FONT></TD> |
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245 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/utils/join/DataJoinReducerBase.html" title="class in org.apache.hadoop.contrib.utils.join">DataJoinReducerBase</A></B></CODE> |
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246 | |
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247 | <BR> |
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248 | This abstract class serves as the base class for the reducer class of a data |
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249 | join job.</TD> |
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250 | </TR> |
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251 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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252 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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253 | <CODE> class</CODE></FONT></TD> |
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254 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/contrib/utils/join/JobBase.html" title="class in org.apache.hadoop.contrib.utils.join">JobBase</A></B></CODE> |
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255 | |
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256 | <BR> |
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257 | A common base implementing some statics collecting mechanisms that are |
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258 | commonly used in a typical map/reduce job.</TD> |
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259 | </TR> |
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260 | </TABLE> |
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261 | |
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262 | <P> |
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263 | <A NAME="org.apache.hadoop.examples"><!-- --></A> |
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264 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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265 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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266 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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267 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A></FONT></TH> |
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268 | </TR> |
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269 | </TABLE> |
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270 | |
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271 | <P> |
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272 | |
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273 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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274 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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275 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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276 | </TR> |
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277 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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278 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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279 | <CODE>static class</CODE></FONT></TD> |
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280 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/MultiFileWordCount.MapClass.html" title="class in org.apache.hadoop.examples">MultiFileWordCount.MapClass</A></B></CODE> |
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281 | |
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282 | <BR> |
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283 | This Mapper is similar to the one in <A HREF="../../../../../org/apache/hadoop/examples/MultiFileWordCount.MapClass.html" title="class in org.apache.hadoop.examples"><CODE>MultiFileWordCount.MapClass</CODE></A>.</TD> |
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284 | </TR> |
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285 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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286 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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287 | <CODE>static class</CODE></FONT></TD> |
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288 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/PiEstimator.PiMapper.html" title="class in org.apache.hadoop.examples">PiEstimator.PiMapper</A></B></CODE> |
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289 | |
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290 | <BR> |
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291 | Mapper class for Pi estimation.</TD> |
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292 | </TR> |
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293 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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294 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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295 | <CODE> class</CODE></FONT></TD> |
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296 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/SleepJob.html" title="class in org.apache.hadoop.examples">SleepJob</A></B></CODE> |
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297 | |
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298 | <BR> |
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299 | Dummy class for testing MR framefork.</TD> |
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300 | </TR> |
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301 | </TABLE> |
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302 | |
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303 | <P> |
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304 | <A NAME="org.apache.hadoop.examples.dancing"><!-- --></A> |
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305 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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306 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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307 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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308 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/examples/dancing/package-summary.html">org.apache.hadoop.examples.dancing</A></FONT></TH> |
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309 | </TR> |
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310 | </TABLE> |
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311 | |
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312 | <P> |
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313 | |
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314 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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315 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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316 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/examples/dancing/package-summary.html">org.apache.hadoop.examples.dancing</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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317 | </TR> |
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318 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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319 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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320 | <CODE>static class</CODE></FONT></TD> |
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321 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/dancing/DistributedPentomino.PentMap.html" title="class in org.apache.hadoop.examples.dancing">DistributedPentomino.PentMap</A></B></CODE> |
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322 | |
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323 | <BR> |
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324 | Each map takes a line, which represents a prefix move and finds all of |
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325 | the solutions that start with that prefix.</TD> |
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326 | </TR> |
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327 | </TABLE> |
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328 | |
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329 | <P> |
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330 | <A NAME="org.apache.hadoop.examples.terasort"><!-- --></A> |
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331 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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332 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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333 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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334 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/examples/terasort/package-summary.html">org.apache.hadoop.examples.terasort</A></FONT></TH> |
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335 | </TR> |
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336 | </TABLE> |
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337 | |
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338 | <P> |
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339 | |
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340 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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341 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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342 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/examples/terasort/package-summary.html">org.apache.hadoop.examples.terasort</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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343 | </TR> |
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344 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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345 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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346 | <CODE>static class</CODE></FONT></TD> |
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347 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/terasort/TeraGen.SortGenMapper.html" title="class in org.apache.hadoop.examples.terasort">TeraGen.SortGenMapper</A></B></CODE> |
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348 | |
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349 | <BR> |
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350 | The Mapper class that given a row number, will generate the appropriate |
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351 | output line.</TD> |
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352 | </TR> |
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353 | </TABLE> |
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354 | |
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355 | <P> |
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356 | <A NAME="org.apache.hadoop.mapred"><!-- --></A> |
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357 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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358 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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359 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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360 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A></FONT></TH> |
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361 | </TR> |
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362 | </TABLE> |
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363 | |
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364 | <P> |
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365 | |
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366 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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367 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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368 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> that return <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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369 | </TR> |
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370 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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371 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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372 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A><<A HREF="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">K1</A>,<A HREF="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">V1</A>,<A HREF="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">K2</A>,<A HREF="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">V2</A>></CODE></FONT></TD> |
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373 | <TD><CODE><B>MapRunner.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/MapRunner.html#getMapper()">getMapper</A></B>()</CODE> |
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374 | |
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375 | <BR> |
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376 | </TD> |
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377 | </TR> |
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378 | </TABLE> |
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379 | |
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380 | <P> |
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381 | |
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382 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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383 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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384 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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385 | </TR> |
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386 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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387 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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388 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>></CODE></FONT></TD> |
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389 | <TD><CODE><B>JobConf.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html#getMapperClass()">getMapperClass</A></B>()</CODE> |
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390 | |
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391 | <BR> |
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392 | <B>Deprecated.</B> Get the <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</TD> |
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393 | </TR> |
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394 | </TABLE> |
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395 | |
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396 | <P> |
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397 | |
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398 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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399 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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400 | <TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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401 | </TR> |
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402 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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403 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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404 | <CODE> void</CODE></FONT></TD> |
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405 | <TD><CODE><B>JobConf.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html#setMapperClass(java.lang.Class)">setMapperClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>> theClass)</CODE> |
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406 | |
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407 | <BR> |
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408 | <B>Deprecated.</B> Set the <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</TD> |
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409 | </TR> |
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410 | </TABLE> |
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411 | |
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412 | <P> |
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413 | <A NAME="org.apache.hadoop.mapred.lib"><!-- --></A> |
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414 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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415 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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416 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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417 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A></FONT></TH> |
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418 | </TR> |
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419 | </TABLE> |
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420 | |
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421 | <P> |
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422 | |
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423 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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424 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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425 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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426 | </TR> |
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427 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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428 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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429 | <CODE> class</CODE></FONT></TD> |
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430 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/ChainMapper.html" title="class in org.apache.hadoop.mapred.lib">ChainMapper</A></B></CODE> |
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431 | |
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432 | <BR> |
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433 | The ChainMapper class allows to use multiple Mapper classes within a single |
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434 | Map task.</TD> |
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435 | </TR> |
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436 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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437 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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438 | <CODE> class</CODE></FONT></TD> |
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439 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/DelegatingMapper.html" title="class in org.apache.hadoop.mapred.lib">DelegatingMapper<K1,V1,K2,V2></A></B></CODE> |
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440 | |
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441 | <BR> |
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442 | An <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> that delegates behaviour of paths to multiple other |
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443 | mappers.</TD> |
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444 | </TR> |
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445 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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446 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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447 | <CODE> class</CODE></FONT></TD> |
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448 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html" title="class in org.apache.hadoop.mapred.lib">FieldSelectionMapReduce<K,V></A></B></CODE> |
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449 | |
---|
450 | <BR> |
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451 | This class implements a mapper/reducer class that can be used to perform |
---|
452 | field selections in a manner similar to unix cut.</TD> |
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453 | </TR> |
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454 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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455 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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456 | <CODE> class</CODE></FONT></TD> |
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457 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html" title="class in org.apache.hadoop.mapred.lib">IdentityMapper<K,V></A></B></CODE> |
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458 | |
---|
459 | <BR> |
---|
460 | <B>Deprecated.</B> <I>Use <A HREF="../../../../../org/apache/hadoop/mapreduce/Mapper.html" title="class in org.apache.hadoop.mapreduce"><CODE>Mapper</CODE></A> instead.</I></TD> |
---|
461 | </TR> |
---|
462 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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463 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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464 | <CODE> class</CODE></FONT></TD> |
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465 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html" title="class in org.apache.hadoop.mapred.lib">InverseMapper<K,V></A></B></CODE> |
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466 | |
---|
467 | <BR> |
---|
468 | <B>Deprecated.</B> <I>Use <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/InverseMapper.html" title="class in org.apache.hadoop.mapreduce.lib.map"><CODE>InverseMapper</CODE></A> |
---|
469 | instead.</I></TD> |
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470 | </TR> |
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471 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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472 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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473 | <CODE> class</CODE></FONT></TD> |
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474 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/RegexMapper.html" title="class in org.apache.hadoop.mapred.lib">RegexMapper<K></A></B></CODE> |
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475 | |
---|
476 | <BR> |
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477 | A <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> that extracts text matching a regular expression.</TD> |
---|
478 | </TR> |
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479 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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480 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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481 | <CODE> class</CODE></FONT></TD> |
---|
482 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/TokenCountMapper.html" title="class in org.apache.hadoop.mapred.lib">TokenCountMapper<K></A></B></CODE> |
---|
483 | |
---|
484 | <BR> |
---|
485 | <B>Deprecated.</B> <I>Use |
---|
486 | <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/TokenCounterMapper.html" title="class in org.apache.hadoop.mapreduce.lib.map"><CODE>TokenCounterMapper</CODE></A> instead.</I></TD> |
---|
487 | </TR> |
---|
488 | </TABLE> |
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489 | |
---|
490 | <P> |
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491 | |
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492 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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493 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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494 | <TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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495 | </TR> |
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496 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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497 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
498 | <CODE>static void</CODE></FONT></TD> |
---|
499 | <TD><CODE><B>MultipleInputs.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/MultipleInputs.html#addInputPath(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.fs.Path, java.lang.Class, java.lang.Class)">addInputPath</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> conf, |
---|
500 | <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> path, |
---|
501 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A>> inputFormatClass, |
---|
502 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>> mapperClass)</CODE> |
---|
503 | |
---|
504 | <BR> |
---|
505 | Add a <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs"><CODE>Path</CODE></A> with a custom <A HREF="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> and |
---|
506 | <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> to the list of inputs for the map-reduce job.</TD> |
---|
507 | </TR> |
---|
508 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
509 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
510 | <CODE>static |
---|
511 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
---|
512 | <TR ALIGN="right" VALIGN=""> |
---|
513 | <TD NOWRAP><FONT SIZE="-1"> |
---|
514 | <CODE><K1,V1,K2,V2> |
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515 | <BR> |
---|
516 | void</CODE></FONT></TD> |
---|
517 | </TR> |
---|
518 | </TABLE> |
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519 | </CODE></FONT></TD> |
---|
520 | <TD><CODE><B>ChainReducer.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/ChainReducer.html#addMapper(org.apache.hadoop.mapred.JobConf, java.lang.Class, java.lang.Class, java.lang.Class, java.lang.Class, java.lang.Class, boolean, org.apache.hadoop.mapred.JobConf)">addMapper</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
---|
521 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A><K1,V1,K2,V2>> klass, |
---|
522 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends K1> inputKeyClass, |
---|
523 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends V1> inputValueClass, |
---|
524 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends K2> outputKeyClass, |
---|
525 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends V2> outputValueClass, |
---|
526 | boolean byValue, |
---|
527 | <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> mapperConf)</CODE> |
---|
528 | |
---|
529 | <BR> |
---|
530 | Adds a Mapper class to the chain job's JobConf.</TD> |
---|
531 | </TR> |
---|
532 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
533 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
534 | <CODE>static |
---|
535 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
---|
536 | <TR ALIGN="right" VALIGN=""> |
---|
537 | <TD NOWRAP><FONT SIZE="-1"> |
---|
538 | <CODE><K1,V1,K2,V2> |
---|
539 | <BR> |
---|
540 | void</CODE></FONT></TD> |
---|
541 | </TR> |
---|
542 | </TABLE> |
---|
543 | </CODE></FONT></TD> |
---|
544 | <TD><CODE><B>ChainMapper.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/ChainMapper.html#addMapper(org.apache.hadoop.mapred.JobConf, java.lang.Class, java.lang.Class, java.lang.Class, java.lang.Class, java.lang.Class, boolean, org.apache.hadoop.mapred.JobConf)">addMapper</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
---|
545 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A><K1,V1,K2,V2>> klass, |
---|
546 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends K1> inputKeyClass, |
---|
547 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends V1> inputValueClass, |
---|
548 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends K2> outputKeyClass, |
---|
549 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends V2> outputValueClass, |
---|
550 | boolean byValue, |
---|
551 | <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> mapperConf)</CODE> |
---|
552 | |
---|
553 | <BR> |
---|
554 | Adds a Mapper class to the chain job's JobConf.</TD> |
---|
555 | </TR> |
---|
556 | </TABLE> |
---|
557 | |
---|
558 | <P> |
---|
559 | <A NAME="org.apache.hadoop.mapred.lib.aggregate"><!-- --></A> |
---|
560 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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561 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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562 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
---|
563 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/package-summary.html">org.apache.hadoop.mapred.lib.aggregate</A></FONT></TH> |
---|
564 | </TR> |
---|
565 | </TABLE> |
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566 | |
---|
567 | <P> |
---|
568 | |
---|
569 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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570 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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571 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/package-summary.html">org.apache.hadoop.mapred.lib.aggregate</A> that implement <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></FONT></TH> |
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572 | </TR> |
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573 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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574 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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575 | <CODE> class</CODE></FONT></TD> |
---|
576 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorCombiner<K1 extends WritableComparable,V1 extends Writable></A></B></CODE> |
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577 | |
---|
578 | <BR> |
---|
579 | This class implements the generic combiner of Aggregate.</TD> |
---|
580 | </TR> |
---|
581 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
582 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
583 | <CODE> class</CODE></FONT></TD> |
---|
584 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorJobBase<K1 extends WritableComparable,V1 extends Writable></A></B></CODE> |
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585 | |
---|
586 | <BR> |
---|
587 | This abstract class implements some common functionalities of the |
---|
588 | the generic mapper, reducer and combiner classes of Aggregate.</TD> |
---|
589 | </TR> |
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590 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
591 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
592 | <CODE> class</CODE></FONT></TD> |
---|
593 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorMapper<K1 extends WritableComparable,V1 extends Writable></A></B></CODE> |
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594 | |
---|
595 | <BR> |
---|
596 | This class implements the generic mapper of Aggregate.</TD> |
---|
597 | </TR> |
---|
598 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
599 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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600 | <CODE> class</CODE></FONT></TD> |
---|
601 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorReducer<K1 extends WritableComparable,V1 extends Writable></A></B></CODE> |
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602 | |
---|
603 | <BR> |
---|
604 | This class implements the generic reducer of Aggregate.</TD> |
---|
605 | </TR> |
---|
606 | </TABLE> |
---|
607 | |
---|
608 | <P> |
---|
609 | <A NAME="org.apache.hadoop.streaming"><!-- --></A> |
---|
610 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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611 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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612 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
---|
613 | Uses of <A HREF="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A> in <A HREF="../../../../../org/apache/hadoop/streaming/package-summary.html">org.apache.hadoop.streaming</A></FONT></TH> |
---|
614 | </TR> |
---|
615 | </TABLE> |
---|
616 | |
---|
617 | <P> |
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618 | |
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619 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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625 | <CODE> class</CODE></FONT></TD> |
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