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5<!-- Generated by javadoc (build 1.6.0_07) on Tue Sep 01 20:56:59 UTC 2009 -->
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7IntermediateForm (Hadoop 0.20.1 API)
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90<FONT SIZE="-1">
91org.apache.hadoop.contrib.index.mapred</FONT>
92<BR>
93Class IntermediateForm</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.contrib.index.mapred.IntermediateForm</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DD>
100</DL>
101<HR>
102<DL>
103<DT><PRE>public class <B>IntermediateForm</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/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DL>
104</PRE>
105
106<P>
107An intermediate form for one or more parsed Lucene documents and/or
108 delete terms. It actually uses Lucene file format as the format for
109 the intermediate form by using RAM dir files.
110 
111 Note: If process(*) is ever called, closeWriter() should be called.
112 Otherwise, no need to call closeWriter().
113<P>
114
115<P>
116<HR>
117
118<P>
119
120<!-- ======== CONSTRUCTOR SUMMARY ======== -->
121
122<A NAME="constructor_summary"><!-- --></A>
123<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
124<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
125<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
126<B>Constructor Summary</B></FONT></TH>
127</TR>
128<TR BGCOLOR="white" CLASS="TableRowColor">
129<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#IntermediateForm()">IntermediateForm</A></B>()</CODE>
130
131<BR>
132&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor</TD>
133</TR>
134</TABLE>
135&nbsp;
136<!-- ========== METHOD SUMMARY =========== -->
137
138<A NAME="method_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>Method Summary</B></FONT></TH>
143</TR>
144<TR BGCOLOR="white" CLASS="TableRowColor">
145<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
146<CODE>&nbsp;void</CODE></FONT></TD>
147<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#closeWriter()">closeWriter</A></B>()</CODE>
148
149<BR>
150&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close the Lucene index writer associated with the intermediate form,
151 if created.</TD>
152</TR>
153<TR BGCOLOR="white" CLASS="TableRowColor">
154<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
155<CODE>&nbsp;void</CODE></FONT></TD>
156<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#configure(org.apache.hadoop.contrib.index.mapred.IndexUpdateConfiguration)">configure</A></B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IndexUpdateConfiguration.html" title="class in org.apache.hadoop.contrib.index.mapred">IndexUpdateConfiguration</A>&nbsp;iconf)</CODE>
157
158<BR>
159&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Configure using an index update configuration.</TD>
160</TR>
161<TR BGCOLOR="white" CLASS="TableRowColor">
162<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
163<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A>&lt;org.apache.lucene.index.Term&gt;</CODE></FONT></TD>
164<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#deleteTermIterator()">deleteTermIterator</A></B>()</CODE>
165
166<BR>
167&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get an iterator for the delete terms in the intermediate form.</TD>
168</TR>
169<TR BGCOLOR="white" CLASS="TableRowColor">
170<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
171<CODE>&nbsp;org.apache.lucene.store.Directory</CODE></FONT></TD>
172<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#getDirectory()">getDirectory</A></B>()</CODE>
173
174<BR>
175&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the ram directory of the intermediate form.</TD>
176</TR>
177<TR BGCOLOR="white" CLASS="TableRowColor">
178<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
179<CODE>&nbsp;void</CODE></FONT></TD>
180<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#process(org.apache.hadoop.contrib.index.mapred.DocumentAndOp, org.apache.lucene.analysis.Analyzer)">process</A></B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/DocumentAndOp.html" title="class in org.apache.hadoop.contrib.index.mapred">DocumentAndOp</A>&nbsp;doc,
181        org.apache.lucene.analysis.Analyzer&nbsp;analyzer)</CODE>
182
183<BR>
184&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method is used by the index update mapper and process a document
185 operation into the current intermediate form.</TD>
186</TR>
187<TR BGCOLOR="white" CLASS="TableRowColor">
188<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
189<CODE>&nbsp;void</CODE></FONT></TD>
190<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#process(org.apache.hadoop.contrib.index.mapred.IntermediateForm)">process</A></B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html" title="class in org.apache.hadoop.contrib.index.mapred">IntermediateForm</A>&nbsp;form)</CODE>
191
192<BR>
193&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method is used by the index update combiner and process an
194 intermediate form into the current intermediate form.</TD>
195</TR>
196<TR BGCOLOR="white" CLASS="TableRowColor">
197<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
198<CODE>&nbsp;void</CODE></FONT></TD>
199<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#readFields(java.io.DataInput)">readFields</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)</CODE>
200
201<BR>
202&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deserialize the fields of this object from <code>in</code>.</TD>
203</TR>
204<TR BGCOLOR="white" CLASS="TableRowColor">
205<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
206<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
207<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#toString()">toString</A></B>()</CODE>
208
209<BR>
210&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
211</TR>
212<TR BGCOLOR="white" CLASS="TableRowColor">
213<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
214<CODE>&nbsp;void</CODE></FONT></TD>
215<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html#write(java.io.DataOutput)">write</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A>&nbsp;out)</CODE>
216
217<BR>
218&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Serialize the fields of this object to <code>out</code>.</TD>
219</TR>
220</TABLE>
221&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
222<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
223<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
224<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>
225</TR>
226<TR BGCOLOR="white" CLASS="TableRowColor">
227<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#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>
228</TR>
229</TABLE>
230&nbsp;
231<P>
232
233<!-- ========= CONSTRUCTOR DETAIL ======== -->
234
235<A NAME="constructor_detail"><!-- --></A>
236<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
237<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
238<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
239<B>Constructor Detail</B></FONT></TH>
240</TR>
241</TABLE>
242
243<A NAME="IntermediateForm()"><!-- --></A><H3>
244IntermediateForm</H3>
245<PRE>
246public <B>IntermediateForm</B>()
247                 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>
248<DL>
249<DD>Constructor
250<P>
251<DL>
252
253<DT><B>Throws:</B>
254<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>
255</DL>
256
257<!-- ============ METHOD DETAIL ========== -->
258
259<A NAME="method_detail"><!-- --></A>
260<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
261<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
262<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
263<B>Method Detail</B></FONT></TH>
264</TR>
265</TABLE>
266
267<A NAME="configure(org.apache.hadoop.contrib.index.mapred.IndexUpdateConfiguration)"><!-- --></A><H3>
268configure</H3>
269<PRE>
270public void <B>configure</B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IndexUpdateConfiguration.html" title="class in org.apache.hadoop.contrib.index.mapred">IndexUpdateConfiguration</A>&nbsp;iconf)</PRE>
271<DL>
272<DD>Configure using an index update configuration.
273<P>
274<DD><DL>
275</DL>
276</DD>
277<DD><DL>
278<DT><B>Parameters:</B><DD><CODE>iconf</CODE> - the index update configuration</DL>
279</DD>
280</DL>
281<HR>
282
283<A NAME="getDirectory()"><!-- --></A><H3>
284getDirectory</H3>
285<PRE>
286public org.apache.lucene.store.Directory <B>getDirectory</B>()</PRE>
287<DL>
288<DD>Get the ram directory of the intermediate form.
289<P>
290<DD><DL>
291</DL>
292</DD>
293<DD><DL>
294
295<DT><B>Returns:</B><DD>the ram directory</DL>
296</DD>
297</DL>
298<HR>
299
300<A NAME="deleteTermIterator()"><!-- --></A><H3>
301deleteTermIterator</H3>
302<PRE>
303public <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A>&lt;org.apache.lucene.index.Term&gt; <B>deleteTermIterator</B>()</PRE>
304<DL>
305<DD>Get an iterator for the delete terms in the intermediate form.
306<P>
307<DD><DL>
308</DL>
309</DD>
310<DD><DL>
311
312<DT><B>Returns:</B><DD>an iterator for the delete terms</DL>
313</DD>
314</DL>
315<HR>
316
317<A NAME="process(org.apache.hadoop.contrib.index.mapred.DocumentAndOp, org.apache.lucene.analysis.Analyzer)"><!-- --></A><H3>
318process</H3>
319<PRE>
320public void <B>process</B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/DocumentAndOp.html" title="class in org.apache.hadoop.contrib.index.mapred">DocumentAndOp</A>&nbsp;doc,
321                    org.apache.lucene.analysis.Analyzer&nbsp;analyzer)
322             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>
323<DL>
324<DD>This method is used by the index update mapper and process a document
325 operation into the current intermediate form.
326<P>
327<DD><DL>
328</DL>
329</DD>
330<DD><DL>
331<DT><B>Parameters:</B><DD><CODE>doc</CODE> - input document operation<DD><CODE>analyzer</CODE> - the analyzer
332<DT><B>Throws:</B>
333<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>
334</DD>
335</DL>
336<HR>
337
338<A NAME="process(org.apache.hadoop.contrib.index.mapred.IntermediateForm)"><!-- --></A><H3>
339process</H3>
340<PRE>
341public void <B>process</B>(<A HREF="../../../../../../org/apache/hadoop/contrib/index/mapred/IntermediateForm.html" title="class in org.apache.hadoop.contrib.index.mapred">IntermediateForm</A>&nbsp;form)
342             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>
343<DL>
344<DD>This method is used by the index update combiner and process an
345 intermediate form into the current intermediate form. More specifically,
346 the input intermediate forms are a single-document ram index and/or a
347 single delete term.
348<P>
349<DD><DL>
350</DL>
351</DD>
352<DD><DL>
353<DT><B>Parameters:</B><DD><CODE>form</CODE> - the input intermediate form
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="closeWriter()"><!-- --></A><H3>
361closeWriter</H3>
362<PRE>
363public void <B>closeWriter</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>Close the Lucene index writer associated with the intermediate form,
367 if created. Do not close the ram directory. In fact, there is no need
368 to close a ram directory.
369<P>
370<DD><DL>
371</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="toString()"><!-- --></A><H3>
382toString</H3>
383<PRE>
384public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
385<DL>
386<DD><DL>
387<DT><B>Overrides:</B><DD><CODE><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></CODE> in class <CODE><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></CODE></DL>
388</DD>
389<DD><DL>
390</DL>
391</DD>
392</DL>
393<HR>
394
395<A NAME="write(java.io.DataOutput)"><!-- --></A><H3>
396write</H3>
397<PRE>
398public void <B>write</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A>&nbsp;out)
399           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>
400<DL>
401<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">Writable</A></CODE></B></DD>
402<DD>Serialize the fields of this object to <code>out</code>.
403<P>
404<DD><DL>
405<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">write</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
406</DD>
407<DD><DL>
408<DT><B>Parameters:</B><DD><CODE>out</CODE> - <code>DataOuput</code> to serialize this object into.
409<DT><B>Throws:</B>
410<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>
411</DD>
412</DL>
413<HR>
414
415<A NAME="readFields(java.io.DataInput)"><!-- --></A><H3>
416readFields</H3>
417<PRE>
418public void <B>readFields</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)
419                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>
420<DL>
421<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">Writable</A></CODE></B></DD>
422<DD>Deserialize the fields of this object from <code>in</code>. 
423 
424 <p>For efficiency, implementations should attempt to re-use storage in the
425 existing object where possible.</p>
426<P>
427<DD><DL>
428<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">readFields</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
429</DD>
430<DD><DL>
431<DT><B>Parameters:</B><DD><CODE>in</CODE> - <code>DataInput</code> to deseriablize this object from.
432<DT><B>Throws:</B>
433<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>
434</DD>
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