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7MultiFilterRecordReader (Hadoop 0.20.1 API)
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59&nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html" title="class in org.apache.hadoop.mapred.join"><B>NEXT CLASS</B></A></FONT></TD>
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88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.mapred.join</FONT>
92<BR>
93Class MultiFilterRecordReader&lt;K extends <A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</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,V,V&gt;
97      <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.join.MultiFilterRecordReader&lt;K,V&gt;</B>
98</PRE>
99<DL>
100<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,V&gt;, <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;K,V&gt;</DD>
101</DL>
102<DL>
103<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../org/apache/hadoop/mapred/join/OverrideRecordReader.html" title="class in org.apache.hadoop.mapred.join">OverrideRecordReader</A></DD>
104</DL>
105<HR>
106<DL>
107<DT><PRE>public abstract class <B>MultiFilterRecordReader&lt;K extends <A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</B><DT>extends <A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="class in org.apache.hadoop.mapred.join">CompositeRecordReader</A>&lt;K,V,V&gt;<DT>implements <A HREF="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A>&lt;K,V&gt;</DL>
108</PRE>
109
110<P>
111Base class for Composite join returning values derived from multiple
112 sources, but generally not tuples.
113<P>
114
115<P>
116<HR>
117
118<P>
119<!-- ======== NESTED CLASS SUMMARY ======== -->
120
121<A NAME="nested_class_summary"><!-- --></A>
122<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
123<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
124<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
125<B>Nested Class Summary</B></FONT></TH>
126</TR>
127<TR BGCOLOR="white" CLASS="TableRowColor">
128<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
129<CODE>protected &nbsp;class</CODE></FONT></TD>
130<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html" title="class in org.apache.hadoop.mapred.join">MultiFilterRecordReader.MultiFilterDelegationIterator</A></B></CODE>
131
132<BR>
133&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Proxy the JoinCollector, but include callback to emit.</TD>
134</TR>
135</TABLE>
136&nbsp;<!-- =========== FIELD SUMMARY =========== -->
137
138<A NAME="field_summary"><!-- --></A>
139<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
140<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
141<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
142<B>Field Summary</B></FONT></TH>
143</TR>
144</TABLE>
145&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapred.join.CompositeRecordReader"><!-- --></A>
146<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
147<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
148<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>
149</TR>
150<TR BGCOLOR="white" CLASS="TableRowColor">
151<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>
152</TR>
153</TABLE>
154&nbsp;
155<!-- ======== CONSTRUCTOR SUMMARY ======== -->
156
157<A NAME="constructor_summary"><!-- --></A>
158<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
159<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
160<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
161<B>Constructor Summary</B></FONT></TH>
162</TR>
163<TR BGCOLOR="white" CLASS="TableRowColor">
164<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#MultiFilterRecordReader(int, org.apache.hadoop.mapred.JobConf, int, java.lang.Class)">MultiFilterRecordReader</A></B>(int&nbsp;id,
165                        <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
166                        int&nbsp;capacity,
167                        <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/io/WritableComparator.html" title="class in org.apache.hadoop.io">WritableComparator</A>&gt;&nbsp;cmpcl)</CODE>
168
169<BR>
170&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
171</TR>
172</TABLE>
173&nbsp;
174<!-- ========== METHOD SUMMARY =========== -->
175
176<A NAME="method_summary"><!-- --></A>
177<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
178<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
179<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
180<B>Method Summary</B></FONT></TH>
181</TR>
182<TR BGCOLOR="white" CLASS="TableRowColor">
183<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
184<CODE>protected &nbsp;boolean</CODE></FONT></TD>
185<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.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,
186        <A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)</CODE>
187
188<BR>
189&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default implementation offers <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#emit(org.apache.hadoop.mapred.join.TupleWritable)"><CODE>emit(org.apache.hadoop.mapred.join.TupleWritable)</CODE></A> every Tuple from the
190 collector (the outer join of child RRs).</TD>
191</TR>
192<TR BGCOLOR="white" CLASS="TableRowColor">
193<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
194<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A></CODE></FONT></TD>
195<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#createValue()">createValue</A></B>()</CODE>
196
197<BR>
198&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an object of the appropriate type to be used as a value.</TD>
199</TR>
200<TR BGCOLOR="white" CLASS="TableRowColor">
201<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
202<CODE>protected abstract &nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A></CODE></FONT></TD>
203<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#emit(org.apache.hadoop.mapred.join.TupleWritable)">emit</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)</CODE>
204
205<BR>
206&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For each tuple emitted, return a value (typically one of the values
207 in the tuple).</TD>
208</TR>
209<TR BGCOLOR="white" CLASS="TableRowColor">
210<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
211<CODE>protected &nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapred.join">ResetableIterator</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&gt;</CODE></FONT></TD>
212<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#getDelegate()">getDelegate</A></B>()</CODE>
213
214<BR>
215&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return an iterator returning a single value from the tuple.</TD>
216</TR>
217<TR BGCOLOR="white" CLASS="TableRowColor">
218<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
219<CODE>&nbsp;boolean</CODE></FONT></TD>
220<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#next(K, V)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">K</A>&nbsp;key,
221     <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;value)</CODE>
222
223<BR>
224&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads the next key/value pair from the input for processing.</TD>
225</TR>
226</TABLE>
227&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.join.CompositeRecordReader"><!-- --></A>
228<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
229<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
230<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>
231</TR>
232<TR BGCOLOR="white" CLASS="TableRowColor">
233<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>
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236&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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238<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
239<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>
240</TR>
241<TR BGCOLOR="white" CLASS="TableRowColor">
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243</TR>
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245&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.join.ComposableRecordReader"><!-- --></A>
246<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
247<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
248<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>
249</TR>
250<TR BGCOLOR="white" CLASS="TableRowColor">
251<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>
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254&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.RecordReader"><!-- --></A>
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257<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>
258</TR>
259<TR BGCOLOR="white" CLASS="TableRowColor">
260<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>
261</TR>
262</TABLE>
263&nbsp;<A NAME="methods_inherited_from_class_java.lang.Comparable"><!-- --></A>
264<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
265<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
266<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>
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280<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
281<B>Constructor Detail</B></FONT></TH>
282</TR>
283</TABLE>
284
285<A NAME="MultiFilterRecordReader(int, org.apache.hadoop.mapred.JobConf, int, java.lang.Class)"><!-- --></A><H3>
286MultiFilterRecordReader</H3>
287<PRE>
288public <B>MultiFilterRecordReader</B>(int&nbsp;id,
289                               <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
290                               int&nbsp;capacity,
291                               <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/io/WritableComparator.html" title="class in org.apache.hadoop.io">WritableComparator</A>&gt;&nbsp;cmpcl)
292                        throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
293<DL>
294<DL>
295
296<DT><B>Throws:</B>
297<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
298</DL>
299
300<!-- ============ METHOD DETAIL ========== -->
301
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305<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
306<B>Method Detail</B></FONT></TH>
307</TR>
308</TABLE>
309
310<A NAME="emit(org.apache.hadoop.mapred.join.TupleWritable)"><!-- --></A><H3>
311emit</H3>
312<PRE>
313protected abstract <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> <B>emit</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)
314                                    throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
315<DL>
316<DD>For each tuple emitted, return a value (typically one of the values
317 in the tuple).
318 Modifying the Writables in the tuple is permitted and unlikely to affect
319 join behavior in most cases, but it is not recommended. It's safer to
320 clone first.
321<P>
322<DD><DL>
323</DL>
324</DD>
325<DD><DL>
326
327<DT><B>Throws:</B>
328<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
329</DD>
330</DL>
331<HR>
332
333<A NAME="combine(java.lang.Object[], org.apache.hadoop.mapred.join.TupleWritable)"><!-- --></A><H3>
334combine</H3>
335<PRE>
336protected 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,
337                          <A HREF="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>&nbsp;dst)</PRE>
338<DL>
339<DD>Default implementation offers <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html#emit(org.apache.hadoop.mapred.join.TupleWritable)"><CODE>emit(org.apache.hadoop.mapred.join.TupleWritable)</CODE></A> every Tuple from the
340 collector (the outer join of child RRs).
341<P>
342<DD><DL>
343<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/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">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/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>,<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
344</DD>
345<DD><DL>
346</DL>
347</DD>
348</DL>
349<HR>
350
351<A NAME="next(org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="next(K, V)"><!-- --></A><H3>
352next</H3>
353<PRE>
354public boolean <B>next</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">K</A>&nbsp;key,
355                    <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;value)
356             throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
357<DL>
358<DD>Reads the next key/value pair from the input for processing.
359<P>
360<DD><DL>
361<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#next(K, V)">next</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">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/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
362</DD>
363<DD><DL>
364<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key to read data into<DD><CODE>value</CODE> - the value to read data into
365<DT><B>Returns:</B><DD>true iff a key/value was read, false if at EOF
366<DT><B>Throws:</B>
367<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
368</DD>
369</DL>
370<HR>
371
372<A NAME="createValue()"><!-- --></A><H3>
373createValue</H3>
374<PRE>
375public <A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> <B>createValue</B>()</PRE>
376<DL>
377<DD>Create an object of the appropriate type to be used as a value.
378<P>
379<DD><DL>
380<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#createValue()">createValue</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">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/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
381</DD>
382<DD><DL>
383
384<DT><B>Returns:</B><DD>a new value object.</DL>
385</DD>
386</DL>
387<HR>
388
389<A NAME="getDelegate()"><!-- --></A><H3>
390getDelegate</H3>
391<PRE>
392protected <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapred.join">ResetableIterator</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&gt; <B>getDelegate</B>()</PRE>
393<DL>
394<DD>Return an iterator returning a single value from the tuple.
395<P>
396<DD><DL>
397<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getDelegate()">getDelegate</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/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">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/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>,<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
398</DD>
399<DD><DL>
400<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html" title="class in org.apache.hadoop.mapred.join"><CODE>MultiFilterRecordReader.MultiFilterDelegationIterator</CODE></A></DL>
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