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7CompressionOutputStream (Hadoop 0.20.1 API)
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91org.apache.hadoop.io.compress</FONT>
92<BR>
93Class CompressionOutputStream</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">java.io.OutputStream</A>
97      <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.io.compress.CompressionOutputStream</B>
98</PRE>
99<DL>
100<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Flushable.html?is-external=true" title="class or interface in java.io">Flushable</A></DD>
101</DL>
102<DL>
103<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../org/apache/hadoop/io/compress/CompressorStream.html" title="class in org.apache.hadoop.io.compress">CompressorStream</A></DD>
104</DL>
105<HR>
106<DL>
107<DT><PRE>public abstract class <B>CompressionOutputStream</B><DT>extends <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></DL>
108</PRE>
109
110<P>
111A compression output stream.
112<P>
113
114<P>
115<HR>
116
117<P>
118<!-- =========== FIELD SUMMARY =========== -->
119
120<A NAME="field_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>Field Summary</B></FONT></TH>
125</TR>
126<TR BGCOLOR="white" CLASS="TableRowColor">
127<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
128<CODE>protected &nbsp;<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></CODE></FONT></TD>
129<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#out">out</A></B></CODE>
130
131<BR>
132&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The output stream to be compressed.</TD>
133</TR>
134</TABLE>
135&nbsp;
136<!-- ======== CONSTRUCTOR SUMMARY ======== -->
137
138<A NAME="constructor_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>Constructor 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>protected </CODE></FONT></TD>
147<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#CompressionOutputStream(java.io.OutputStream)">CompressionOutputStream</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>
148
149<BR>
150&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a compression output stream that writes
151 the compressed bytes to the given stream.</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/io/compress/CompressionOutputStream.html#close()">close</A></B>()</CODE>
167
168<BR>
169&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
170</TR>
171<TR BGCOLOR="white" CLASS="TableRowColor">
172<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
173<CODE>abstract &nbsp;void</CODE></FONT></TD>
174<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#finish()">finish</A></B>()</CODE>
175
176<BR>
177&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Finishes writing compressed data to the output stream
178 without closing the underlying stream.</TD>
179</TR>
180<TR BGCOLOR="white" CLASS="TableRowColor">
181<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
182<CODE>&nbsp;void</CODE></FONT></TD>
183<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#flush()">flush</A></B>()</CODE>
184
185<BR>
186&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
187</TR>
188<TR BGCOLOR="white" CLASS="TableRowColor">
189<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
190<CODE>abstract &nbsp;void</CODE></FONT></TD>
191<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#resetState()">resetState</A></B>()</CODE>
192
193<BR>
194&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reset the compression to the initial state.</TD>
195</TR>
196<TR BGCOLOR="white" CLASS="TableRowColor">
197<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
198<CODE>abstract &nbsp;void</CODE></FONT></TD>
199<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/io/compress/CompressionOutputStream.html#write(byte[], int, int)">write</A></B>(byte[]&nbsp;b,
200      int&nbsp;off,
201      int&nbsp;len)</CODE>
202
203<BR>
204&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Write compressed bytes to the stream.</TD>
205</TR>
206</TABLE>
207&nbsp;<A NAME="methods_inherited_from_class_java.io.OutputStream"><!-- --></A>
208<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
209<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
210<TH ALIGN="left"><B>Methods inherited from class java.io.<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></B></TH>
211</TR>
212<TR BGCOLOR="white" CLASS="TableRowColor">
213<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true#write(byte[])" title="class or interface in java.io">write</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true#write(int)" title="class or interface in java.io">write</A></CODE></TD>
214</TR>
215</TABLE>
216&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
217<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
218<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
219<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>
220</TR>
221<TR BGCOLOR="white" CLASS="TableRowColor">
222<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>
223</TR>
224</TABLE>
225&nbsp;
226<P>
227
228<!-- ============ FIELD DETAIL =========== -->
229
230<A NAME="field_detail"><!-- --></A>
231<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
232<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
233<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
234<B>Field Detail</B></FONT></TH>
235</TR>
236</TABLE>
237
238<A NAME="out"><!-- --></A><H3>
239out</H3>
240<PRE>
241protected final <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> <B>out</B></PRE>
242<DL>
243<DD>The output stream to be compressed.
244<P>
245<DL>
246</DL>
247</DL>
248
249<!-- ========= CONSTRUCTOR DETAIL ======== -->
250
251<A NAME="constructor_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>Constructor Detail</B></FONT></TH>
256</TR>
257</TABLE>
258
259<A NAME="CompressionOutputStream(java.io.OutputStream)"><!-- --></A><H3>
260CompressionOutputStream</H3>
261<PRE>
262protected <B>CompressionOutputStream</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)</PRE>
263<DL>
264<DD>Create a compression output stream that writes
265 the compressed bytes to the given stream.
266<P>
267<DL>
268<DT><B>Parameters:</B><DD><CODE>out</CODE> - </DL>
269</DL>
270
271<!-- ============ METHOD DETAIL ========== -->
272
273<A NAME="method_detail"><!-- --></A>
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275<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
276<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
277<B>Method Detail</B></FONT></TH>
278</TR>
279</TABLE>
280
281<A NAME="close()"><!-- --></A><H3>
282close</H3>
283<PRE>
284public void <B>close</B>()
285           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>
286<DL>
287<DD><DL>
288<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Closeable.html?is-external=true#close()" title="class or interface in java.io">close</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true#close()" title="class or interface in java.io">close</A></CODE> in class <CODE><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></CODE></DL>
289</DD>
290<DD><DL>
291
292<DT><B>Throws:</B>
293<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>
294</DD>
295</DL>
296<HR>
297
298<A NAME="flush()"><!-- --></A><H3>
299flush</H3>
300<PRE>
301public void <B>flush</B>()
302           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>
303<DL>
304<DD><DL>
305<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Flushable.html?is-external=true#flush()" title="class or interface in java.io">flush</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/Flushable.html?is-external=true" title="class or interface in java.io">Flushable</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true#flush()" title="class or interface in java.io">flush</A></CODE> in class <CODE><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></CODE></DL>
306</DD>
307<DD><DL>
308
309<DT><B>Throws:</B>
310<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>
311</DD>
312</DL>
313<HR>
314
315<A NAME="write(byte[], int, int)"><!-- --></A><H3>
316write</H3>
317<PRE>
318public abstract void <B>write</B>(byte[]&nbsp;b,
319                           int&nbsp;off,
320                           int&nbsp;len)
321                    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>
322<DL>
323<DD>Write compressed bytes to the stream.
324 Made abstract to prevent leakage to underlying stream.
325<P>
326<DD><DL>
327<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true#write(byte[], int, int)" title="class or interface in java.io">write</A></CODE> in class <CODE><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></CODE></DL>
328</DD>
329<DD><DL>
330
331<DT><B>Throws:</B>
332<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>
333</DD>
334</DL>
335<HR>
336
337<A NAME="finish()"><!-- --></A><H3>
338finish</H3>
339<PRE>
340public abstract void <B>finish</B>()
341                     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>
342<DL>
343<DD>Finishes writing compressed data to the output stream
344 without closing the underlying stream.
345<P>
346<DD><DL>
347
348<DT><B>Throws:</B>
349<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>
350</DD>
351</DL>
352<HR>
353
354<A NAME="resetState()"><!-- --></A><H3>
355resetState</H3>
356<PRE>
357public abstract void <B>resetState</B>()
358                         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>
359<DL>
360<DD>Reset the compression to the initial state.
361 Does not reset the underlying stream.
362<P>
363<DD><DL>
364
365<DT><B>Throws:</B>
366<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>
367</DD>
368</DL>
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