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7TFile.Reader.Scanner.Entry (Hadoop 0.20.1 API)
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
80<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
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87<HR>
88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.io.file.tfile</FONT>
92<BR>
93Class TFile.Reader.Scanner.Entry</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.io.file.tfile.TFile.Reader.Scanner.Entry</B>
97</PRE>
98<DL>
99<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/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</A>&gt;</DD>
100</DL>
101<DL>
102<DT><B>Enclosing class:</B><DD><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.html" title="class in org.apache.hadoop.io.file.tfile">TFile.Reader.Scanner</A></DD>
103</DL>
104<HR>
105<DL>
106<DT><PRE>public class <B>TFile.Reader.Scanner.Entry</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="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/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</A>&gt;</DL>
107</PRE>
108
109<P>
110Entry to a &lt;Key, Value&gt; pair.
111<P>
112
113<P>
114<HR>
115
116<P>
117
118<!-- ======== CONSTRUCTOR SUMMARY ======== -->
119
120<A NAME="constructor_summary"><!-- --></A>
121<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
122<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
123<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
124<B>Constructor Summary</B></FONT></TH>
125</TR>
126<TR BGCOLOR="white" CLASS="TableRowColor">
127<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#TFile.Reader.Scanner.Entry()">TFile.Reader.Scanner.Entry</A></B>()</CODE>
128
129<BR>
130&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
131</TR>
132</TABLE>
133&nbsp;
134<!-- ========== METHOD SUMMARY =========== -->
135
136<A NAME="method_summary"><!-- --></A>
137<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
138<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
139<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
140<B>Method Summary</B></FONT></TH>
141</TR>
142<TR BGCOLOR="white" CLASS="TableRowColor">
143<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
144<CODE>&nbsp;int</CODE></FONT></TD>
145<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo(byte[])">compareTo</A></B>(byte[]&nbsp;buf)</CODE>
146
147<BR>
148&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compare the entry key to another key.</TD>
149</TR>
150<TR BGCOLOR="white" CLASS="TableRowColor">
151<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
152<CODE>&nbsp;int</CODE></FONT></TD>
153<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo(byte[], int, int)">compareTo</A></B>(byte[]&nbsp;buf,
154          int&nbsp;offset,
155          int&nbsp;length)</CODE>
156
157<BR>
158&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compare the entry key to another key.</TD>
159</TR>
160<TR BGCOLOR="white" CLASS="TableRowColor">
161<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
162<CODE>&nbsp;int</CODE></FONT></TD>
163<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#compareTo(org.apache.hadoop.io.file.tfile.RawComparable)">compareTo</A></B>(<A HREF="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</A>&nbsp;key)</CODE>
164
165<BR>
166&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compare an entry with a RawComparable object.</TD>
167</TR>
168<TR BGCOLOR="white" CLASS="TableRowColor">
169<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
170<CODE>&nbsp;boolean</CODE></FONT></TD>
171<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#equals(java.lang.Object)">equals</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;other)</CODE>
172
173<BR>
174&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compare whether this and other points to the same key value.</TD>
175</TR>
176<TR BGCOLOR="white" CLASS="TableRowColor">
177<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
178<CODE>&nbsp;void</CODE></FONT></TD>
179<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#get(org.apache.hadoop.io.BytesWritable, org.apache.hadoop.io.BytesWritable)">get</A></B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;key,
180    <A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;value)</CODE>
181
182<BR>
183&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy the key and value in one shot into BytesWritables.</TD>
184</TR>
185<TR BGCOLOR="white" CLASS="TableRowColor">
186<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
187<CODE>&nbsp;int</CODE></FONT></TD>
188<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey(byte[])">getKey</A></B>(byte[]&nbsp;buf)</CODE>
189
190<BR>
191&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy the key into user supplied buffer.</TD>
192</TR>
193<TR BGCOLOR="white" CLASS="TableRowColor">
194<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
195<CODE>&nbsp;int</CODE></FONT></TD>
196<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey(byte[], int)">getKey</A></B>(byte[]&nbsp;buf,
197       int&nbsp;offset)</CODE>
198
199<BR>
200&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy the key into user supplied buffer.</TD>
201</TR>
202<TR BGCOLOR="white" CLASS="TableRowColor">
203<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
204<CODE>&nbsp;int</CODE></FONT></TD>
205<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKey(org.apache.hadoop.io.BytesWritable)">getKey</A></B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;key)</CODE>
206
207<BR>
208&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy the key into BytesWritable.</TD>
209</TR>
210<TR BGCOLOR="white" CLASS="TableRowColor">
211<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
212<CODE>&nbsp;int</CODE></FONT></TD>
213<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKeyLength()">getKeyLength</A></B>()</CODE>
214
215<BR>
216&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the length of the key.</TD>
217</TR>
218<TR BGCOLOR="white" CLASS="TableRowColor">
219<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
220<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</A></CODE></FONT></TD>
221<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getKeyStream()">getKeyStream</A></B>()</CODE>
222
223<BR>
224&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Streaming access to the key.</TD>
225</TR>
226<TR BGCOLOR="white" CLASS="TableRowColor">
227<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
228<CODE>&nbsp;int</CODE></FONT></TD>
229<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[])">getValue</A></B>(byte[]&nbsp;buf)</CODE>
230
231<BR>
232&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy value into user-supplied buffer.</TD>
233</TR>
234<TR BGCOLOR="white" CLASS="TableRowColor">
235<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
236<CODE>&nbsp;int</CODE></FONT></TD>
237<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[], int)">getValue</A></B>(byte[]&nbsp;buf,
238         int&nbsp;offset)</CODE>
239
240<BR>
241&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy value into user-supplied buffer.</TD>
242</TR>
243<TR BGCOLOR="white" CLASS="TableRowColor">
244<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
245<CODE>&nbsp;long</CODE></FONT></TD>
246<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(org.apache.hadoop.io.BytesWritable)">getValue</A></B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;value)</CODE>
247
248<BR>
249&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy the value into BytesWritable.</TD>
250</TR>
251<TR BGCOLOR="white" CLASS="TableRowColor">
252<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
253<CODE>&nbsp;int</CODE></FONT></TD>
254<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueLength()">getValueLength</A></B>()</CODE>
255
256<BR>
257&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the length of the value.</TD>
258</TR>
259<TR BGCOLOR="white" CLASS="TableRowColor">
260<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
261<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</A></CODE></FONT></TD>
262<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream()">getValueStream</A></B>()</CODE>
263
264<BR>
265&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stream access to value.</TD>
266</TR>
267<TR BGCOLOR="white" CLASS="TableRowColor">
268<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
269<CODE>&nbsp;int</CODE></FONT></TD>
270<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#hashCode()">hashCode</A></B>()</CODE>
271
272<BR>
273&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
274</TR>
275<TR BGCOLOR="white" CLASS="TableRowColor">
276<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
277<CODE>&nbsp;boolean</CODE></FONT></TD>
278<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#isValueLengthKnown()">isValueLengthKnown</A></B>()</CODE>
279
280<BR>
281&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check whether it is safe to call getValueLength().</TD>
282</TR>
283<TR BGCOLOR="white" CLASS="TableRowColor">
284<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
285<CODE>&nbsp;int</CODE></FONT></TD>
286<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#writeKey(java.io.OutputStream)">writeKey</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;out)</CODE>
287
288<BR>
289&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writing the key to the output stream.</TD>
290</TR>
291<TR BGCOLOR="white" CLASS="TableRowColor">
292<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
293<CODE>&nbsp;long</CODE></FONT></TD>
294<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#writeValue(java.io.OutputStream)">writeValue</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;out)</CODE>
295
296<BR>
297&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writing the value to the output stream.</TD>
298</TR>
299</TABLE>
300&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
301<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
302<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
303<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>
304</TR>
305<TR BGCOLOR="white" CLASS="TableRowColor">
306<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#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#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>
307</TR>
308</TABLE>
309&nbsp;
310<P>
311
312<!-- ========= CONSTRUCTOR DETAIL ======== -->
313
314<A NAME="constructor_detail"><!-- --></A>
315<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
316<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
317<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
318<B>Constructor Detail</B></FONT></TH>
319</TR>
320</TABLE>
321
322<A NAME="TFile.Reader.Scanner.Entry()"><!-- --></A><H3>
323TFile.Reader.Scanner.Entry</H3>
324<PRE>
325public <B>TFile.Reader.Scanner.Entry</B>()</PRE>
326<DL>
327</DL>
328
329<!-- ============ METHOD DETAIL ========== -->
330
331<A NAME="method_detail"><!-- --></A>
332<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
333<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
334<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
335<B>Method Detail</B></FONT></TH>
336</TR>
337</TABLE>
338
339<A NAME="getKeyLength()"><!-- --></A><H3>
340getKeyLength</H3>
341<PRE>
342public int <B>getKeyLength</B>()</PRE>
343<DL>
344<DD>Get the length of the key.
345<P>
346<DD><DL>
347</DL>
348</DD>
349<DD><DL>
350
351<DT><B>Returns:</B><DD>the length of the key.</DL>
352</DD>
353</DL>
354<HR>
355
356<A NAME="get(org.apache.hadoop.io.BytesWritable, org.apache.hadoop.io.BytesWritable)"><!-- --></A><H3>
357get</H3>
358<PRE>
359public void <B>get</B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;key,
360                <A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;value)
361         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>
362<DL>
363<DD>Copy the key and value in one shot into BytesWritables. This is
364 equivalent to getKey(key); getValue(value);
365<P>
366<DD><DL>
367</DL>
368</DD>
369<DD><DL>
370<DT><B>Parameters:</B><DD><CODE>key</CODE> - BytesWritable to hold key.<DD><CODE>value</CODE> - BytesWritable to hold value
371<DT><B>Throws:</B>
372<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>
373</DD>
374</DL>
375<HR>
376
377<A NAME="getKey(org.apache.hadoop.io.BytesWritable)"><!-- --></A><H3>
378getKey</H3>
379<PRE>
380public int <B>getKey</B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;key)
381           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>
382<DL>
383<DD>Copy the key into BytesWritable. The input BytesWritable will be
384 automatically resized to the actual key size.
385<P>
386<DD><DL>
387</DL>
388</DD>
389<DD><DL>
390<DT><B>Parameters:</B><DD><CODE>key</CODE> - BytesWritable to hold the key.
391<DT><B>Throws:</B>
392<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>
393</DD>
394</DL>
395<HR>
396
397<A NAME="getValue(org.apache.hadoop.io.BytesWritable)"><!-- --></A><H3>
398getValue</H3>
399<PRE>
400public long <B>getValue</B>(<A HREF="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&nbsp;value)
401              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>
402<DL>
403<DD>Copy the value into BytesWritable. The input BytesWritable will be
404 automatically resized to the actual value size. The implementation
405 directly uses the buffer inside BytesWritable for storing the value.
406 The call does not require the value length to be known.
407<P>
408<DD><DL>
409</DL>
410</DD>
411<DD><DL>
412<DT><B>Parameters:</B><DD><CODE>value</CODE> -
413<DT><B>Throws:</B>
414<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>
415</DD>
416</DL>
417<HR>
418
419<A NAME="writeKey(java.io.OutputStream)"><!-- --></A><H3>
420writeKey</H3>
421<PRE>
422public int <B>writeKey</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;out)
423             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>
424<DL>
425<DD>Writing the key to the output stream. This method avoids copying key
426 buffer from Scanner into user buffer, then writing to the output
427 stream.
428<P>
429<DD><DL>
430</DL>
431</DD>
432<DD><DL>
433<DT><B>Parameters:</B><DD><CODE>out</CODE> - The output stream
434<DT><B>Returns:</B><DD>the length of the key.
435<DT><B>Throws:</B>
436<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>
437</DD>
438</DL>
439<HR>
440
441<A NAME="writeValue(java.io.OutputStream)"><!-- --></A><H3>
442writeValue</H3>
443<PRE>
444public long <B>writeValue</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;out)
445                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>
446<DL>
447<DD>Writing the value to the output stream. This method avoids copying
448 value data from Scanner into user buffer, then writing to the output
449 stream. It does not require the value length to be known.
450<P>
451<DD><DL>
452</DL>
453</DD>
454<DD><DL>
455<DT><B>Parameters:</B><DD><CODE>out</CODE> - The output stream
456<DT><B>Returns:</B><DD>the length of the value
457<DT><B>Throws:</B>
458<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>
459</DD>
460</DL>
461<HR>
462
463<A NAME="getKey(byte[])"><!-- --></A><H3>
464getKey</H3>
465<PRE>
466public int <B>getKey</B>(byte[]&nbsp;buf)
467           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>
468<DL>
469<DD>Copy the key into user supplied buffer.
470<P>
471<DD><DL>
472</DL>
473</DD>
474<DD><DL>
475<DT><B>Parameters:</B><DD><CODE>buf</CODE> - The buffer supplied by user. The length of the buffer must
476          not be shorter than the key length.
477<DT><B>Returns:</B><DD>The length of the key.
478<DT><B>Throws:</B>
479<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>
480</DD>
481</DL>
482<HR>
483
484<A NAME="getKey(byte[], int)"><!-- --></A><H3>
485getKey</H3>
486<PRE>
487public int <B>getKey</B>(byte[]&nbsp;buf,
488                  int&nbsp;offset)
489           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>
490<DL>
491<DD>Copy the key into user supplied buffer.
492<P>
493<DD><DL>
494</DL>
495</DD>
496<DD><DL>
497<DT><B>Parameters:</B><DD><CODE>buf</CODE> - The buffer supplied by user.<DD><CODE>offset</CODE> - The starting offset of the user buffer where we should copy
498          the key into. Requiring the key-length + offset no greater
499          than the buffer length.
500<DT><B>Returns:</B><DD>The length of the key.
501<DT><B>Throws:</B>
502<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>
503</DD>
504</DL>
505<HR>
506
507<A NAME="getKeyStream()"><!-- --></A><H3>
508getKeyStream</H3>
509<PRE>
510public <A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</A> <B>getKeyStream</B>()</PRE>
511<DL>
512<DD>Streaming access to the key. Useful for desrializing the key into
513 user objects.
514<P>
515<DD><DL>
516</DL>
517</DD>
518<DD><DL>
519
520<DT><B>Returns:</B><DD>The input stream.</DL>
521</DD>
522</DL>
523<HR>
524
525<A NAME="getValueLength()"><!-- --></A><H3>
526getValueLength</H3>
527<PRE>
528public int <B>getValueLength</B>()</PRE>
529<DL>
530<DD>Get the length of the value. isValueLengthKnown() must be tested
531 true.
532<P>
533<DD><DL>
534</DL>
535</DD>
536<DD><DL>
537
538<DT><B>Returns:</B><DD>the length of the value.</DL>
539</DD>
540</DL>
541<HR>
542
543<A NAME="getValue(byte[])"><!-- --></A><H3>
544getValue</H3>
545<PRE>
546public int <B>getValue</B>(byte[]&nbsp;buf)
547             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>
548<DL>
549<DD>Copy value into user-supplied buffer. User supplied buffer must be
550 large enough to hold the whole value. The value part of the key-value
551 pair pointed by the current cursor is not cached and can only be
552 examined once. Calling any of the following functions more than once
553 without moving the cursor will result in exception:
554 <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[])"><CODE>getValue(byte[])</CODE></A>, <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[], int)"><CODE>getValue(byte[], int)</CODE></A>,
555 <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream()"><CODE>getValueStream()</CODE></A>.
556<P>
557<DD><DL>
558</DL>
559</DD>
560<DD><DL>
561
562<DT><B>Returns:</B><DD>the length of the value. Does not require
563         isValueLengthKnown() to be true.
564<DT><B>Throws:</B>
565<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>
566</DD>
567</DL>
568<HR>
569
570<A NAME="getValue(byte[], int)"><!-- --></A><H3>
571getValue</H3>
572<PRE>
573public int <B>getValue</B>(byte[]&nbsp;buf,
574                    int&nbsp;offset)
575             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>
576<DL>
577<DD>Copy value into user-supplied buffer. User supplied buffer must be
578 large enough to hold the whole value (starting from the offset). The
579 value part of the key-value pair pointed by the current cursor is not
580 cached and can only be examined once. Calling any of the following
581 functions more than once without moving the cursor will result in
582 exception: <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[])"><CODE>getValue(byte[])</CODE></A>, <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[], int)"><CODE>getValue(byte[], int)</CODE></A>,
583 <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream()"><CODE>getValueStream()</CODE></A>.
584<P>
585<DD><DL>
586</DL>
587</DD>
588<DD><DL>
589
590<DT><B>Returns:</B><DD>the length of the value. Does not require
591         isValueLengthKnown() to be true.
592<DT><B>Throws:</B>
593<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>
594</DD>
595</DL>
596<HR>
597
598<A NAME="getValueStream()"><!-- --></A><H3>
599getValueStream</H3>
600<PRE>
601public <A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInputStream.html?is-external=true" title="class or interface in java.io">DataInputStream</A> <B>getValueStream</B>()
602                               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>
603<DL>
604<DD>Stream access to value. The value part of the key-value pair pointed
605 by the current cursor is not cached and can only be examined once.
606 Calling any of the following functions more than once without moving
607 the cursor will result in exception: <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[])"><CODE>getValue(byte[])</CODE></A>,
608 <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValue(byte[], int)"><CODE>getValue(byte[], int)</CODE></A>, <A HREF="../../../../../../org/apache/hadoop/io/file/tfile/TFile.Reader.Scanner.Entry.html#getValueStream()"><CODE>getValueStream()</CODE></A>.
609<P>
610<DD><DL>
611</DL>
612</DD>
613<DD><DL>
614
615<DT><B>Returns:</B><DD>The input stream for reading the value.
616<DT><B>Throws:</B>
617<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>
618</DD>
619</DL>
620<HR>
621
622<A NAME="isValueLengthKnown()"><!-- --></A><H3>
623isValueLengthKnown</H3>
624<PRE>
625public boolean <B>isValueLengthKnown</B>()</PRE>
626<DL>
627<DD>Check whether it is safe to call getValueLength().
628<P>
629<DD><DL>
630</DL>
631</DD>
632<DD><DL>
633
634<DT><B>Returns:</B><DD>true if value length is known before hand. Values less than
635         the chunk size will always have their lengths known before
636         hand. Values that are written out as a whole (with advertised
637         length up-front) will always have their lengths known in
638         read.</DL>
639</DD>
640</DL>
641<HR>
642
643<A NAME="compareTo(byte[])"><!-- --></A><H3>
644compareTo</H3>
645<PRE>
646public int <B>compareTo</B>(byte[]&nbsp;buf)</PRE>
647<DL>
648<DD>Compare the entry key to another key. Synonymous to compareTo(key, 0,
649 key.length).
650<P>
651<DD><DL>
652</DL>
653</DD>
654<DD><DL>
655<DT><B>Parameters:</B><DD><CODE>buf</CODE> - The key buffer.
656<DT><B>Returns:</B><DD>comparison result between the entry key with the input key.</DL>
657</DD>
658</DL>
659<HR>
660
661<A NAME="compareTo(byte[], int, int)"><!-- --></A><H3>
662compareTo</H3>
663<PRE>
664public int <B>compareTo</B>(byte[]&nbsp;buf,
665                     int&nbsp;offset,
666                     int&nbsp;length)</PRE>
667<DL>
668<DD>Compare the entry key to another key. Synonymous to compareTo(new
669 ByteArray(buf, offset, length)
670<P>
671<DD><DL>
672</DL>
673</DD>
674<DD><DL>
675<DT><B>Parameters:</B><DD><CODE>buf</CODE> - The key buffer<DD><CODE>offset</CODE> - offset into the key buffer.<DD><CODE>length</CODE> - the length of the key.
676<DT><B>Returns:</B><DD>comparison result between the entry key with the input key.</DL>
677</DD>
678</DL>
679<HR>
680
681<A NAME="compareTo(org.apache.hadoop.io.file.tfile.RawComparable)"><!-- --></A><H3>
682compareTo</H3>
683<PRE>
684public int <B>compareTo</B>(<A HREF="../../../../../../org/apache/hadoop/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</A>&nbsp;key)</PRE>
685<DL>
686<DD>Compare an entry with a RawComparable object. This is useful when
687 Entries are stored in a collection, and we want to compare a user
688 supplied key.
689<P>
690<DD><DL>
691<DT><B>Specified by:</B><DD><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> in interface <CODE><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/io/file/tfile/RawComparable.html" title="interface in org.apache.hadoop.io.file.tfile">RawComparable</A>&gt;</CODE></DL>
692</DD>
693<DD><DL>
694</DL>
695</DD>
696</DL>
697<HR>
698
699<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
700equals</H3>
701<PRE>
702public boolean <B>equals</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;other)</PRE>
703<DL>
704<DD>Compare whether this and other points to the same key value.
705<P>
706<DD><DL>
707<DT><B>Overrides:</B><DD><CODE><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></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>
708</DD>
709<DD><DL>
710</DL>
711</DD>
712</DL>
713<HR>
714
715<A NAME="hashCode()"><!-- --></A><H3>
716hashCode</H3>
717<PRE>
718public int <B>hashCode</B>()</PRE>
719<DL>
720<DD><DL>
721<DT><B>Overrides:</B><DD><CODE><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></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>
722</DD>
723<DD><DL>
724</DL>
725</DD>
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