source: proiecte/HadoopJUnit/hadoop-0.20.1/docs/api/org/apache/hadoop/mapreduce/class-use/Partitioner.html @ 120

Last change on this file since 120 was 120, checked in by (none), 14 years ago

Added the mail files for the Hadoop JUNit Project
  • Property svn:executable set to *
File size: 12.7 KB
Line 
1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2<!--NewPage-->
3<HTML>
4<HEAD>
5<!-- Generated by javadoc (build 1.6.0_07) on Tue Sep 01 20:57:03 UTC 2009 -->
6<TITLE>
7Uses of Class org.apache.hadoop.mapreduce.Partitioner (Hadoop 0.20.1 API)
8</TITLE>
9
10<META NAME="date" CONTENT="2009-09-01">
11
12<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style">
13
14<SCRIPT type="text/javascript">
15function windowTitle()
16{
17    if (location.href.indexOf('is-external=true') == -1) {
18        parent.document.title="Uses of Class org.apache.hadoop.mapreduce.Partitioner (Hadoop 0.20.1 API)";
19    }
20}
21</SCRIPT>
22<NOSCRIPT>
23</NOSCRIPT>
24
25</HEAD>
26
27<BODY BGCOLOR="white" onload="windowTitle();">
28<HR>
29
30
31<!-- ========= START OF TOP NAVBAR ======= -->
32<A NAME="navbar_top"><!-- --></A>
33<A HREF="#skip-navbar_top" title="Skip navigation links"></A>
34<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
35<TR>
36<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
37<A NAME="navbar_top_firstrow"><!-- --></A>
38<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
39  <TR ALIGN="center" VALIGN="top">
40  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
41  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
42  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce"><FONT CLASS="NavBarFont1"><B>Class</B></FONT></A>&nbsp;</TD>
43  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Use</B></FONT>&nbsp;</TD>
44  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
45  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
46  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
47  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
48  </TR>
49</TABLE>
50</TD>
51<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
52</EM>
53</TD>
54</TR>
55
56<TR>
57<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
58&nbsp;PREV&nbsp;
59&nbsp;NEXT</FONT></TD>
60<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
61  <A HREF="../../../../../index.html?org/apache/hadoop/mapreduce//class-usePartitioner.html" target="_top"><B>FRAMES</B></A>  &nbsp;
62&nbsp;<A HREF="Partitioner.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
63&nbsp;<SCRIPT type="text/javascript">
64  <!--
65  if(window==top) {
66    document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>');
67  }
68  //-->
69</SCRIPT>
70<NOSCRIPT>
71  <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>
72</NOSCRIPT>
73
74
75</FONT></TD>
76</TR>
77</TABLE>
78<A NAME="skip-navbar_top"></A>
79<!-- ========= END OF TOP NAVBAR ========= -->
80
81<HR>
82<CENTER>
83<H2>
84<B>Uses of Class<br>org.apache.hadoop.mapreduce.Partitioner</B></H2>
85</CENTER>
86
87<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
88<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
89<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
90Packages that use <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A></FONT></TH>
91</TR>
92<TR BGCOLOR="white" CLASS="TableRowColor">
93<TD><A HREF="#org.apache.hadoop.examples"><B>org.apache.hadoop.examples</B></A></TD>
94<TD>Hadoop example code.&nbsp;</TD>
95</TR>
96<TR BGCOLOR="white" CLASS="TableRowColor">
97<TD><A HREF="#org.apache.hadoop.mapreduce"><B>org.apache.hadoop.mapreduce</B></A></TD>
98<TD>&nbsp;&nbsp;</TD>
99</TR>
100<TR BGCOLOR="white" CLASS="TableRowColor">
101<TD><A HREF="#org.apache.hadoop.mapreduce.lib.partition"><B>org.apache.hadoop.mapreduce.lib.partition</B></A></TD>
102<TD>&nbsp;&nbsp;</TD>
103</TR>
104</TABLE>
105&nbsp;
106<P>
107<A NAME="org.apache.hadoop.examples"><!-- --></A>
108<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
109<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
110<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
111Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A> in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A></FONT></TH>
112</TR>
113</TABLE>
114&nbsp;
115<P>
116
117<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
118<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
119<TH ALIGN="left" COLSPAN="2">Subclasses of <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A> in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A></FONT></TH>
120</TR>
121<TR BGCOLOR="white" CLASS="TableRowColor">
122<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
123<CODE>static&nbsp;class</CODE></FONT></TD>
124<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/examples/SecondarySort.FirstPartitioner.html" title="class in org.apache.hadoop.examples">SecondarySort.FirstPartitioner</A></B></CODE>
125
126<BR>
127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Partition based on the first part of the pair.</TD>
128</TR>
129</TABLE>
130&nbsp;
131<P>
132<A NAME="org.apache.hadoop.mapreduce"><!-- --></A>
133<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
134<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
135<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
136Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A></FONT></TH>
137</TR>
138</TABLE>
139&nbsp;
140<P>
141
142<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
143<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
144<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A></FONT></TH>
145</TR>
146<TR BGCOLOR="white" CLASS="TableRowColor">
147<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
148<CODE>&nbsp;<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>&lt;? extends <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A>&lt;?,?&gt;&gt;</CODE></FONT></TD>
149<TD><CODE><B>JobContext.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html#getPartitionerClass()">getPartitionerClass</A></B>()</CODE>
150
151<BR>
152&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce"><CODE>Partitioner</CODE></A> class for the job.</TD>
153</TR>
154</TABLE>
155&nbsp;
156<P>
157
158<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
159<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
160<TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A></FONT></TH>
161</TR>
162<TR BGCOLOR="white" CLASS="TableRowColor">
163<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
164<CODE>&nbsp;void</CODE></FONT></TD>
165<TD><CODE><B>Job.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/Job.html#setPartitionerClass(java.lang.Class)">setPartitionerClass</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>&lt;? extends <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A>&gt;&nbsp;cls)</CODE>
166
167<BR>
168&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce"><CODE>Partitioner</CODE></A> for the job.</TD>
169</TR>
170</TABLE>
171&nbsp;
172<P>
173<A NAME="org.apache.hadoop.mapreduce.lib.partition"><!-- --></A>
174<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
175<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
176<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
177Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/partition/package-summary.html">org.apache.hadoop.mapreduce.lib.partition</A></FONT></TH>
178</TR>
179</TABLE>
180&nbsp;
181<P>
182
183<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
184<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
185<TH ALIGN="left" COLSPAN="2">Subclasses of <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce">Partitioner</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/partition/package-summary.html">org.apache.hadoop.mapreduce.lib.partition</A></FONT></TH>
186</TR>
187<TR BGCOLOR="white" CLASS="TableRowColor">
188<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
189<CODE>&nbsp;class</CODE></FONT></TD>
190<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/partition/HashPartitioner.html" title="class in org.apache.hadoop.mapreduce.lib.partition">HashPartitioner&lt;K,V&gt;</A></B></CODE>
191
192<BR>
193&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Partition keys by their <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang"><CODE>Object.hashCode()</CODE></A>.</TD>
194</TR>
195</TABLE>
196&nbsp;
197<P>
198<HR>
199
200
201<!-- ======= START OF BOTTOM NAVBAR ====== -->
202<A NAME="navbar_bottom"><!-- --></A>
203<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
204<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
205<TR>
206<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
207<A NAME="navbar_bottom_firstrow"><!-- --></A>
208<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
209  <TR ALIGN="center" VALIGN="top">
210  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
211  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
212  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../org/apache/hadoop/mapreduce/Partitioner.html" title="class in org.apache.hadoop.mapreduce"><FONT CLASS="NavBarFont1"><B>Class</B></FONT></A>&nbsp;</TD>
213  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Use</B></FONT>&nbsp;</TD>
214  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
215  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
216  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
217  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
218  </TR>
219</TABLE>
220</TD>
221<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
222</EM>
223</TD>
224</TR>
225
226<TR>
227<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
228&nbsp;PREV&nbsp;
229&nbsp;NEXT</FONT></TD>
230<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
231  <A HREF="../../../../../index.html?org/apache/hadoop/mapreduce//class-usePartitioner.html" target="_top"><B>FRAMES</B></A>  &nbsp;
232&nbsp;<A HREF="Partitioner.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
233&nbsp;<SCRIPT type="text/javascript">
234  <!--
235  if(window==top) {
236    document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>');
237  }
238  //-->
239</SCRIPT>
240<NOSCRIPT>
241  <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>
242</NOSCRIPT>
243
244
245</FONT></TD>
246</TR>
247</TABLE>
248<A NAME="skip-navbar_bottom"></A>
249<!-- ======== END OF BOTTOM NAVBAR ======= -->
250
251<HR>
252Copyright &copy; 2009 The Apache Software Foundation
253</BODY>
254</HTML>
Note: See TracBrowser for help on using the repository browser.