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7ArrayListBackedIterator (Hadoop 0.20.1 API)
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88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.mapred.join</FONT>
92<BR>
93Class ArrayListBackedIterator&lt;X 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 "><B>org.apache.hadoop.mapred.join.ArrayListBackedIterator&lt;X&gt;</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;X&gt;</DD>
100</DL>
101<HR>
102<DL>
103<DT><PRE>public class <B>ArrayListBackedIterator&lt;X extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</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;X&gt;</DL>
104</PRE>
105
106<P>
107This class provides an implementation of ResetableIterator. The
108 implementation uses an <A HREF="http://java.sun.com/javase/6/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util"><CODE>ArrayList</CODE></A> to store elements
109 added to it, replaying them as requested.
110 Prefer <A HREF="../../../../../org/apache/hadoop/mapred/join/StreamBackedIterator.html" title="class in org.apache.hadoop.mapred.join"><CODE>StreamBackedIterator</CODE></A>.
111<P>
112
113<P>
114<HR>
115
116<P>
117<!-- ======== NESTED CLASS SUMMARY ======== -->
118
119<A NAME="nested_class_summary"><!-- --></A>
120<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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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><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#ArrayListBackedIterator()">ArrayListBackedIterator</A></B>()</CODE>
147
148<BR>
149&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
150</TR>
151<TR BGCOLOR="white" CLASS="TableRowColor">
152<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#ArrayListBackedIterator(java.util.ArrayList)">ArrayListBackedIterator</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&gt;&nbsp;data)</CODE>
153
154<BR>
155&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
156</TR>
157</TABLE>
158&nbsp;
159<!-- ========== METHOD SUMMARY =========== -->
160
161<A NAME="method_summary"><!-- --></A>
162<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
163<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
164<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
165<B>Method Summary</B></FONT></TH>
166</TR>
167<TR BGCOLOR="white" CLASS="TableRowColor">
168<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
169<CODE>&nbsp;void</CODE></FONT></TD>
170<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#add(X)">add</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;item)</CODE>
171
172<BR>
173&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Add an element to the collection of elements to iterate over.</TD>
174</TR>
175<TR BGCOLOR="white" CLASS="TableRowColor">
176<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
177<CODE>&nbsp;void</CODE></FONT></TD>
178<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#clear()">clear</A></B>()</CODE>
179
180<BR>
181&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close datasources, but do not release internal resources.</TD>
182</TR>
183<TR BGCOLOR="white" CLASS="TableRowColor">
184<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
185<CODE>&nbsp;void</CODE></FONT></TD>
186<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#close()">close</A></B>()</CODE>
187
188<BR>
189&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close datasources and release resources.</TD>
190</TR>
191<TR BGCOLOR="white" CLASS="TableRowColor">
192<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
193<CODE>&nbsp;boolean</CODE></FONT></TD>
194<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#hasNext()">hasNext</A></B>()</CODE>
195
196<BR>
197&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;True if a call to next may return a value.</TD>
198</TR>
199<TR BGCOLOR="white" CLASS="TableRowColor">
200<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
201<CODE>&nbsp;boolean</CODE></FONT></TD>
202<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#next(X)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;val)</CODE>
203
204<BR>
205&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Assign next value to actual.</TD>
206</TR>
207<TR BGCOLOR="white" CLASS="TableRowColor">
208<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
209<CODE>&nbsp;boolean</CODE></FONT></TD>
210<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#replay(X)">replay</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;val)</CODE>
211
212<BR>
213&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Assign last value returned to actual.</TD>
214</TR>
215<TR BGCOLOR="white" CLASS="TableRowColor">
216<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
217<CODE>&nbsp;void</CODE></FONT></TD>
218<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html#reset()">reset</A></B>()</CODE>
219
220<BR>
221&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set iterator to return to the start of its range.</TD>
222</TR>
223</TABLE>
224&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
225<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
226<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
227<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>
228</TR>
229<TR BGCOLOR="white" CLASS="TableRowColor">
230<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>
231</TR>
232</TABLE>
233&nbsp;
234<P>
235
236<!-- ========= CONSTRUCTOR DETAIL ======== -->
237
238<A NAME="constructor_detail"><!-- --></A>
239<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
240<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
241<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
242<B>Constructor Detail</B></FONT></TH>
243</TR>
244</TABLE>
245
246<A NAME="ArrayListBackedIterator()"><!-- --></A><H3>
247ArrayListBackedIterator</H3>
248<PRE>
249public <B>ArrayListBackedIterator</B>()</PRE>
250<DL>
251</DL>
252<HR>
253
254<A NAME="ArrayListBackedIterator(java.util.ArrayList)"><!-- --></A><H3>
255ArrayListBackedIterator</H3>
256<PRE>
257public <B>ArrayListBackedIterator</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&gt;&nbsp;data)</PRE>
258<DL>
259</DL>
260
261<!-- ============ METHOD DETAIL ========== -->
262
263<A NAME="method_detail"><!-- --></A>
264<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
265<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
266<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
267<B>Method Detail</B></FONT></TH>
268</TR>
269</TABLE>
270
271<A NAME="hasNext()"><!-- --></A><H3>
272hasNext</H3>
273<PRE>
274public boolean <B>hasNext</B>()</PRE>
275<DL>
276<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#hasNext()">ResetableIterator</A></CODE></B></DD>
277<DD>True if a call to next may return a value. This is permitted false
278 positives, but not false negatives.
279<P>
280<DD><DL>
281<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
282</DD>
283<DD><DL>
284</DL>
285</DD>
286</DL>
287<HR>
288
289<A NAME="next(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="next(X)"><!-- --></A><H3>
290next</H3>
291<PRE>
292public boolean <B>next</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;val)
293             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>
294<DL>
295<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#next(T)">ResetableIterator</A></CODE></B></DD>
296<DD>Assign next value to actual.
297 It is required that elements added to a ResetableIterator be returned in
298 the same order after a call to <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#reset()"><CODE>ResetableIterator.reset()</CODE></A> (FIFO).
299
300 Note that a call to this may fail for nested joins (i.e. more elements
301 available, but none satisfying the constraints of the join)
302<P>
303<DD><DL>
304<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
305</DD>
306<DD><DL>
307
308<DT><B>Throws:</B>
309<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>
310</DD>
311</DL>
312<HR>
313
314<A NAME="replay(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="replay(X)"><!-- --></A><H3>
315replay</H3>
316<PRE>
317public boolean <B>replay</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;val)
318               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>
319<DL>
320<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#replay(T)">ResetableIterator</A></CODE></B></DD>
321<DD>Assign last value returned to actual.
322<P>
323<DD><DL>
324<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
325</DD>
326<DD><DL>
327
328<DT><B>Throws:</B>
329<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>
330</DD>
331</DL>
332<HR>
333
334<A NAME="reset()"><!-- --></A><H3>
335reset</H3>
336<PRE>
337public void <B>reset</B>()</PRE>
338<DL>
339<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#reset()">ResetableIterator</A></CODE></B></DD>
340<DD>Set iterator to return to the start of its range. Must be called after
341 calling <A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#add(T)"><CODE>ResetableIterator.add(T)</CODE></A> to avoid a ConcurrentModificationException.
342<P>
343<DD><DL>
344<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
345</DD>
346<DD><DL>
347</DL>
348</DD>
349</DL>
350<HR>
351
352<A NAME="add(org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="add(X)"><!-- --></A><H3>
353add</H3>
354<PRE>
355public void <B>add</B>(<A HREF="../../../../../org/apache/hadoop/mapred/join/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A>&nbsp;item)
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><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#add(T)">ResetableIterator</A></CODE></B></DD>
359<DD>Add an element to the collection of elements to iterate over.
360<P>
361<DD><DL>
362<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
363</DD>
364<DD><DL>
365
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="close()"><!-- --></A><H3>
373close</H3>
374<PRE>
375public void <B>close</B>()
376           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>
377<DL>
378<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#close()">ResetableIterator</A></CODE></B></DD>
379<DD>Close datasources and release resources. Calling methods on the iterator
380 after calling close has undefined behavior.
381<P>
382<DD><DL>
383<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
384</DD>
385<DD><DL>
386
387<DT><B>Throws:</B>
388<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>
389</DD>
390</DL>
391<HR>
392
393<A NAME="clear()"><!-- --></A><H3>
394clear</H3>
395<PRE>
396public void <B>clear</B>()</PRE>
397<DL>
398<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/join/ResetableIterator.html#clear()">ResetableIterator</A></CODE></B></DD>
399<DD>Close datasources, but do not release internal resources. Calling this
400 method should permit the object to be reused with a different datasource.
401<P>
402<DD><DL>
403<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/ArrayListBackedIterator.html" title="type parameter in ArrayListBackedIterator">X</A> extends <A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
404</DD>
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