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7MultiFilterRecordReader.MultiFilterDelegationIterator (Hadoop 0.20.1 API)
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89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.mapred.join</FONT>
92<BR>
93Class MultiFilterRecordReader.MultiFilterDelegationIterator</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 "><B>org.apache.hadoop.mapred.join.MultiFilterRecordReader.MultiFilterDelegationIterator</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapred.join">ResetableIterator</A>&lt;V&gt;</DD>
100</DL>
101<DL>
102<DT><B>Enclosing class:</B><DD><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="class in org.apache.hadoop.mapred.join">MultiFilterRecordReader</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;</DD>
103</DL>
104<HR>
105<DL>
106<DT><PRE>protected class <B>MultiFilterRecordReader.MultiFilterDelegationIterator</B><DT>extends <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><DT>implements <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapred.join">ResetableIterator</A>&lt;V&gt;</DL>
107</PRE>
108
109<P>
110Proxy the JoinCollector, but include callback to emit.
111<P>
112
113<P>
114<HR>
115
116<P>
117<!-- ======== NESTED CLASS SUMMARY ======== -->
118
119<A NAME="nested_class_summary"><!-- --></A>
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121<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
122<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
123<B>Nested Class Summary</B></FONT></TH>
124</TR>
125</TABLE>
126&nbsp;<A NAME="nested_classes_inherited_from_class_org.apache.hadoop.mapred.join.ResetableIterator"><!-- --></A>
127<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
128<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
129<TH ALIGN="left"><B>Nested classes/interfaces inherited from interface org.apache.hadoop.mapred.join.<A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapred.join">ResetableIterator</A></B></TH>
130</TR>
131<TR BGCOLOR="white" CLASS="TableRowColor">
132<TD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.EMPTY.html" title="class in org.apache.hadoop.mapred.join">ResetableIterator.EMPTY</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.EMPTY.html" title="type parameter in ResetableIterator.EMPTY">U</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></TD>
133</TR>
134</TABLE>
135&nbsp;
136
137<!-- ======== CONSTRUCTOR SUMMARY ======== -->
138
139<A NAME="constructor_summary"><!-- --></A>
140<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
141<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
142<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
143<B>Constructor Summary</B></FONT></TH>
144</TR>
145<TR BGCOLOR="white" CLASS="TableRowColor">
146<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
147<CODE>protected </CODE></FONT></TD>
148<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#MultiFilterRecordReader.MultiFilterDelegationIterator()">MultiFilterRecordReader.MultiFilterDelegationIterator</A></B>()</CODE>
149
150<BR>
151&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
152</TR>
153</TABLE>
154&nbsp;
155<!-- ========== METHOD SUMMARY =========== -->
156
157<A NAME="method_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>Method Summary</B></FONT></TH>
162</TR>
163<TR BGCOLOR="white" CLASS="TableRowColor">
164<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
165<CODE>&nbsp;void</CODE></FONT></TD>
166<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#add(V)">add</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;item)</CODE>
167
168<BR>
169&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Add an element to the collection of elements to iterate over.</TD>
170</TR>
171<TR BGCOLOR="white" CLASS="TableRowColor">
172<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
173<CODE>&nbsp;void</CODE></FONT></TD>
174<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#clear()">clear</A></B>()</CODE>
175
176<BR>
177&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close datasources, but do not release internal resources.</TD>
178</TR>
179<TR BGCOLOR="white" CLASS="TableRowColor">
180<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
181<CODE>&nbsp;void</CODE></FONT></TD>
182<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#close()">close</A></B>()</CODE>
183
184<BR>
185&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close datasources and release resources.</TD>
186</TR>
187<TR BGCOLOR="white" CLASS="TableRowColor">
188<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
189<CODE>&nbsp;boolean</CODE></FONT></TD>
190<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#hasNext()">hasNext</A></B>()</CODE>
191
192<BR>
193&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;True if a call to next may return a value.</TD>
194</TR>
195<TR BGCOLOR="white" CLASS="TableRowColor">
196<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
197<CODE>&nbsp;boolean</CODE></FONT></TD>
198<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#next(V)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;val)</CODE>
199
200<BR>
201&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Assign next value to actual.</TD>
202</TR>
203<TR BGCOLOR="white" CLASS="TableRowColor">
204<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
205<CODE>&nbsp;boolean</CODE></FONT></TD>
206<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#replay(V)">replay</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;val)</CODE>
207
208<BR>
209&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Assign last value returned to actual.</TD>
210</TR>
211<TR BGCOLOR="white" CLASS="TableRowColor">
212<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
213<CODE>&nbsp;void</CODE></FONT></TD>
214<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.MultiFilterDelegationIterator.html#reset()">reset</A></B>()</CODE>
215
216<BR>
217&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set iterator to return to the start of its range.</TD>
218</TR>
219</TABLE>
220&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
221<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
222<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
223<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>
224</TR>
225<TR BGCOLOR="white" CLASS="TableRowColor">
226<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <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">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
227</TR>
228</TABLE>
229&nbsp;
230<P>
231
232<!-- ========= CONSTRUCTOR DETAIL ======== -->
233
234<A NAME="constructor_detail"><!-- --></A>
235<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
236<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
237<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
238<B>Constructor Detail</B></FONT></TH>
239</TR>
240</TABLE>
241
242<A NAME="MultiFilterRecordReader.MultiFilterDelegationIterator()"><!-- --></A><H3>
243MultiFilterRecordReader.MultiFilterDelegationIterator</H3>
244<PRE>
245protected <B>MultiFilterRecordReader.MultiFilterDelegationIterator</B>()</PRE>
246<DL>
247</DL>
248
249<!-- ============ METHOD DETAIL ========== -->
250
251<A NAME="method_detail"><!-- --></A>
252<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
253<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
254<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
255<B>Method Detail</B></FONT></TH>
256</TR>
257</TABLE>
258
259<A NAME="hasNext()"><!-- --></A><H3>
260hasNext</H3>
261<PRE>
262public boolean <B>hasNext</B>()</PRE>
263<DL>
264<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#hasNext()">ResetableIterator</A></CODE></B></DD>
265<DD>True if a call to next may return a value. This is permitted false
266 positives, but not false negatives.
267<P>
268<DD><DL>
269<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#hasNext()">hasNext</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
270</DD>
271<DD><DL>
272</DL>
273</DD>
274</DL>
275<HR>
276
277<A NAME="next(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="next(V)"><!-- --></A><H3>
278next</H3>
279<PRE>
280public boolean <B>next</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;val)
281             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>
282<DL>
283<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#next(T)">ResetableIterator</A></CODE></B></DD>
284<DD>Assign next value to actual.
285 It is required that elements added to a ResetableIterator be returned in
286 the same order after a call to <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#reset()"><CODE>ResetableIterator.reset()</CODE></A> (FIFO).
287
288 Note that a call to this may fail for nested joins (i.e. more elements
289 available, but none satisfying the constraints of the join)
290<P>
291<DD><DL>
292<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#next(T)">next</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
293</DD>
294<DD><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</DD>
299</DL>
300<HR>
301
302<A NAME="replay(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="replay(V)"><!-- --></A><H3>
303replay</H3>
304<PRE>
305public boolean <B>replay</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;val)
306               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>
307<DL>
308<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#replay(T)">ResetableIterator</A></CODE></B></DD>
309<DD>Assign last value returned to actual.
310<P>
311<DD><DL>
312<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#replay(T)">replay</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
313</DD>
314<DD><DL>
315
316<DT><B>Throws:</B>
317<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>
318</DD>
319</DL>
320<HR>
321
322<A NAME="reset()"><!-- --></A><H3>
323reset</H3>
324<PRE>
325public void <B>reset</B>()</PRE>
326<DL>
327<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#reset()">ResetableIterator</A></CODE></B></DD>
328<DD>Set iterator to return to the start of its range. Must be called after
329 calling <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#add(T)"><CODE>ResetableIterator.add(T)</CODE></A> to avoid a ConcurrentModificationException.
330<P>
331<DD><DL>
332<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#reset()">reset</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
333</DD>
334<DD><DL>
335</DL>
336</DD>
337</DL>
338<HR>
339
340<A NAME="add(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="add(V)"><!-- --></A><H3>
341add</H3>
342<PRE>
343public void <B>add</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A>&nbsp;item)
344         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>
345<DL>
346<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#add(T)">ResetableIterator</A></CODE></B></DD>
347<DD>Add an element to the collection of elements to iterate over.
348<P>
349<DD><DL>
350<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#add(T)">add</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
351</DD>
352<DD><DL>
353
354<DT><B>Throws:</B>
355<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>
356</DD>
357</DL>
358<HR>
359
360<A NAME="close()"><!-- --></A><H3>
361close</H3>
362<PRE>
363public void <B>close</B>()
364           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>
365<DL>
366<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#close()">ResetableIterator</A></CODE></B></DD>
367<DD>Close datasources and release resources. Calling methods on the iterator
368 after calling close has undefined behavior.
369<P>
370<DD><DL>
371<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#close()">close</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
372</DD>
373<DD><DL>
374
375<DT><B>Throws:</B>
376<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>
377</DD>
378</DL>
379<HR>
380
381<A NAME="clear()"><!-- --></A><H3>
382clear</H3>
383<PRE>
384public void <B>clear</B>()</PRE>
385<DL>
386<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#clear()">ResetableIterator</A></CODE></B></DD>
387<DD>Close datasources, but do not release internal resources. Calling this
388 method should permit the object to be reused with a different datasource.
389<P>
390<DD><DL>
391<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#clear()">clear</A></CODE> in interface <CODE><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> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
392</DD>
393<DD><DL>
394</DL>
395</DD>
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