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7InnerJoinRecordReader (Hadoop 0.20.1 API)
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87<HR>
88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.mapred.join</FONT>
92<BR>
93Class InnerJoinRecordReader&lt;K extends <A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>&gt;</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="class in org.apache.hadoop.mapred.join">org.apache.hadoop.mapred.join.CompositeRecordReader</A>&lt;K,<A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>,<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&gt;
97      <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">org.apache.hadoop.mapred.join.JoinRecordReader</A>&lt;K&gt;
98          <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.join.InnerJoinRecordReader&lt;K&gt;</B>
99</PRE>
100<DL>
101<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A>&lt;K,?&gt;&gt;, <A HREF="../../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf">Configurable</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A>&lt;K,<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&gt;, <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;K,<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&gt;</DD>
102</DL>
103<HR>
104<DL>
105<DT><PRE>public class <B>InnerJoinRecordReader&lt;K extends <A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>&gt;</B><DT>extends <A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">JoinRecordReader</A>&lt;K&gt;</DL>
106</PRE>
107
108<P>
109Full inner join.
110<P>
111
112<P>
113<HR>
114
115<P>
116<!-- ======== NESTED CLASS SUMMARY ======== -->
117
118<A NAME="nested_class_summary"><!-- --></A>
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120<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
121<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
122<B>Nested Class Summary</B></FONT></TH>
123</TR>
124</TABLE>
125&nbsp;<A NAME="nested_classes_inherited_from_class_org.apache.hadoop.mapred.join.JoinRecordReader"><!-- --></A>
126<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
127<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
128<TH ALIGN="left"><B>Nested classes/interfaces inherited from class org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">JoinRecordReader</A></B></TH>
129</TR>
130<TR BGCOLOR="white" CLASS="TableRowColor">
131<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.JoinDelegationIterator.html" title="class in org.apache.hadoop.mapred.join">JoinRecordReader.JoinDelegationIterator</A></CODE></TD>
132</TR>
133</TABLE>
134&nbsp;
135<!-- =========== FIELD SUMMARY =========== -->
136
137<A NAME="field_summary"><!-- --></A>
138<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
139<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
140<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
141<B>Field Summary</B></FONT></TH>
142</TR>
143</TABLE>
144&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapred.join.CompositeRecordReader"><!-- --></A>
145<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
146<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
147<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="class in org.apache.hadoop.mapred.join">CompositeRecordReader</A></B></TH>
148</TR>
149<TR BGCOLOR="white" CLASS="TableRowColor">
150<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#jc">jc</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#kids">kids</A></CODE></TD>
151</TR>
152</TABLE>
153&nbsp;
154<!-- ========== METHOD SUMMARY =========== -->
155
156<A NAME="method_summary"><!-- --></A>
157<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
158<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
159<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
160<B>Method Summary</B></FONT></TH>
161</TR>
162<TR BGCOLOR="white" CLASS="TableRowColor">
163<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
164<CODE>protected &nbsp;boolean</CODE></FONT></TD>
165<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/InnerJoinRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapred.join.TupleWritable)">combine</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
166        <A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)</CODE>
167
168<BR>
169&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return true iff the tuple is full (all data sources contain this key).</TD>
170</TR>
171</TABLE>
172&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.join.JoinRecordReader"><!-- --></A>
173<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
174<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
175<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">JoinRecordReader</A></B></TH>
176</TR>
177<TR BGCOLOR="white" CLASS="TableRowColor">
178<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html#createValue()">createValue</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html#getDelegate()">getDelegate</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html#next(K, org.apache.hadoop.mapred.join.TupleWritable)">next</A></CODE></TD>
179</TR>
180</TABLE>
181&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.join.CompositeRecordReader"><!-- --></A>
182<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
183<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
184<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="class in org.apache.hadoop.mapred.join">CompositeRecordReader</A></B></TH>
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186<TR BGCOLOR="white" CLASS="TableRowColor">
187<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#accept(org.apache.hadoop.mapred.join.CompositeRecordReader.JoinCollector, K)">accept</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#add(org.apache.hadoop.mapred.join.ComposableRecordReader)">add</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#close()">close</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#compareTo(org.apache.hadoop.mapred.join.ComposableRecordReader)">compareTo</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#createInternalValue()">createInternalValue</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#createKey()">createKey</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#fillJoinCollector(K)">fillJoinCollector</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getComparator()">getComparator</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getConf()">getConf</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getPos()">getPos</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getProgress()">getProgress</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getRecordReaderQueue()">getRecordReaderQueue</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#hasNext()">hasNext</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#id()">id</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#key()">key</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#key(K)">key</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#setConf(org.apache.hadoop.conf.Configuration)">setConf</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#skip(K)">skip</A></CODE></TD>
188</TR>
189</TABLE>
190&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
191<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
192<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
193<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
194</TR>
195<TR BGCOLOR="white" CLASS="TableRowColor">
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197</TR>
198</TABLE>
199&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.join.ComposableRecordReader"><!-- --></A>
200<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
201<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
202<TH ALIGN="left"><B>Methods inherited from interface org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></B></TH>
203</TR>
204<TR BGCOLOR="white" CLASS="TableRowColor">
205<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#accept(org.apache.hadoop.mapred.join.CompositeRecordReader.JoinCollector, K)">accept</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#hasNext()">hasNext</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#id()">id</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#key()">key</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#key(K)">key</A>, <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html#skip(K)">skip</A></CODE></TD>
206</TR>
207</TABLE>
208&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.RecordReader"><!-- --></A>
209<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
210<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
211<TH ALIGN="left"><B>Methods inherited from interface org.apache.hadoop.mapred.<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A></B></TH>
212</TR>
213<TR BGCOLOR="white" CLASS="TableRowColor">
214<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#close()">close</A>, <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#createKey()">createKey</A>, <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#getPos()">getPos</A>, <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#getProgress()">getProgress</A></CODE></TD>
215</TR>
216</TABLE>
217&nbsp;<A NAME="methods_inherited_from_class_java.lang.Comparable"><!-- --></A>
218<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
219<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
220<TH ALIGN="left"><B>Methods inherited from interface java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</A></B></TH>
221</TR>
222<TR BGCOLOR="white" CLASS="TableRowColor">
223<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true#compareTo(T)" title="class or interface in java.lang">compareTo</A></CODE></TD>
224</TR>
225</TABLE>
226&nbsp;
227<P>
228
229<!-- ============ METHOD DETAIL ========== -->
230
231<A NAME="method_detail"><!-- --></A>
232<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
233<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
234<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
235<B>Method Detail</B></FONT></TH>
236</TR>
237</TABLE>
238
239<A NAME="combine(java.lang.Object[], org.apache.hadoop.mapred.join.TupleWritable)"><!-- --></A><H3>
240combine</H3>
241<PRE>
242protected boolean <B>combine</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
243                          <A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)</PRE>
244<DL>
245<DD>Return true iff the tuple is full (all data sources contain this key).
246<P>
247<DD><DL>
248<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapred.join.TupleWritable)">combine</A></CODE> in class <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="class in org.apache.hadoop.mapred.join">CompositeRecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/InnerJoinRecordReader.html" title="type parameter in InnerJoinRecordReader">K</A> extends <A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>,<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&gt;</CODE></DL>
249</DD>
250<DD><DL>
251</DL>
252</DD>
253</DL>
254<!-- ========= END OF CLASS DATA ========= -->
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