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7org.apache.hadoop.contrib.utils.join (Hadoop 0.20.1 API)
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83Package org.apache.hadoop.contrib.utils.join
84</H2>
85
86<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
87<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
88<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
89<B>Interface Summary</B></FONT></TH>
90</TR>
91<TR BGCOLOR="white" CLASS="TableRowColor">
92<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/ResetableIterator.html" title="interface in org.apache.hadoop.contrib.utils.join">ResetableIterator</A></B></TD>
93<TD>This defines an iterator interface that will help the reducer class
94 re-group its input by source tags.</TD>
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96</TABLE>
97&nbsp;
98
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104<B>Class Summary</B></FONT></TH>
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107<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/ArrayListBackedIterator.html" title="class in org.apache.hadoop.contrib.utils.join">ArrayListBackedIterator</A></B></TD>
108<TD>This class provides an implementation of ResetableIterator.</TD>
109</TR>
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111<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/DataJoinJob.html" title="class in org.apache.hadoop.contrib.utils.join">DataJoinJob</A></B></TD>
112<TD>This class implements the main function for creating a map/reduce
113 job to join data of different sources.</TD>
114</TR>
115<TR BGCOLOR="white" CLASS="TableRowColor">
116<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/DataJoinMapperBase.html" title="class in org.apache.hadoop.contrib.utils.join">DataJoinMapperBase</A></B></TD>
117<TD>This abstract class serves as the base class for the mapper class of a data
118 join job.</TD>
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121<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/DataJoinReducerBase.html" title="class in org.apache.hadoop.contrib.utils.join">DataJoinReducerBase</A></B></TD>
122<TD>This abstract class serves as the base class for the reducer class of a data
123 join job.</TD>
124</TR>
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126<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/JobBase.html" title="class in org.apache.hadoop.contrib.utils.join">JobBase</A></B></TD>
127<TD>A common base implementing some statics collecting mechanisms that are
128 commonly used in a typical map/reduce job.</TD>
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131<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/hadoop/contrib/utils/join/TaggedMapOutput.html" title="class in org.apache.hadoop.contrib.utils.join">TaggedMapOutput</A></B></TD>
132<TD>This abstract class serves as the base class for the values that
133 flow from the mappers to the reducers in a data join job.</TD>
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