[120] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
---|
| 2 | <!--NewPage--> |
---|
| 3 | <HTML> |
---|
| 4 | <HEAD> |
---|
| 5 | <!-- Generated by javadoc (build 1.6.0_07) on Tue Sep 01 20:56:53 UTC 2009 --> |
---|
| 6 | <TITLE> |
---|
| 7 | WritableUtils (Hadoop 0.20.1 API) |
---|
| 8 | </TITLE> |
---|
| 9 | |
---|
| 10 | <META NAME="date" CONTENT="2009-09-01"> |
---|
| 11 | |
---|
| 12 | <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"> |
---|
| 13 | |
---|
| 14 | <SCRIPT type="text/javascript"> |
---|
| 15 | function windowTitle() |
---|
| 16 | { |
---|
| 17 | if (location.href.indexOf('is-external=true') == -1) { |
---|
| 18 | parent.document.title="WritableUtils (Hadoop 0.20.1 API)"; |
---|
| 19 | } |
---|
| 20 | } |
---|
| 21 | </SCRIPT> |
---|
| 22 | <NOSCRIPT> |
---|
| 23 | </NOSCRIPT> |
---|
| 24 | |
---|
| 25 | </HEAD> |
---|
| 26 | |
---|
| 27 | <BODY BGCOLOR="white" onload="windowTitle();"> |
---|
| 28 | <HR> |
---|
| 29 | |
---|
| 30 | |
---|
| 31 | <!-- ========= START OF TOP NAVBAR ======= --> |
---|
| 32 | <A NAME="navbar_top"><!-- --></A> |
---|
| 33 | <A HREF="#skip-navbar_top" title="Skip navigation links"></A> |
---|
| 34 | <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> |
---|
| 35 | <TR> |
---|
| 36 | <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> |
---|
| 37 | <A NAME="navbar_top_firstrow"><!-- --></A> |
---|
| 38 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> |
---|
| 39 | <TR ALIGN="center" VALIGN="top"> |
---|
| 40 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> |
---|
| 41 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> |
---|
| 42 | <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> |
---|
| 43 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/WritableUtils.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> |
---|
| 44 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> |
---|
| 45 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> |
---|
| 46 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> |
---|
| 47 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> |
---|
| 48 | </TR> |
---|
| 49 | </TABLE> |
---|
| 50 | </TD> |
---|
| 51 | <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> |
---|
| 52 | </EM> |
---|
| 53 | </TD> |
---|
| 54 | </TR> |
---|
| 55 | |
---|
| 56 | <TR> |
---|
| 57 | <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
---|
| 58 | <A HREF="../../../../org/apache/hadoop/io/WritableName.html" title="class in org.apache.hadoop.io"><B>PREV CLASS</B></A> |
---|
| 59 | NEXT CLASS</FONT></TD> |
---|
| 60 | <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
---|
| 61 | <A HREF="../../../../index.html?org/apache/hadoop/io/WritableUtils.html" target="_top"><B>FRAMES</B></A> |
---|
| 62 | <A HREF="WritableUtils.html" target="_top"><B>NO FRAMES</B></A> |
---|
| 63 | <SCRIPT type="text/javascript"> |
---|
| 64 | <!-- |
---|
| 65 | if(window==top) { |
---|
| 66 | document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); |
---|
| 67 | } |
---|
| 68 | //--> |
---|
| 69 | </SCRIPT> |
---|
| 70 | <NOSCRIPT> |
---|
| 71 | <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A> |
---|
| 72 | </NOSCRIPT> |
---|
| 73 | |
---|
| 74 | |
---|
| 75 | </FONT></TD> |
---|
| 76 | </TR> |
---|
| 77 | <TR> |
---|
| 78 | <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> |
---|
| 79 | SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> |
---|
| 80 | <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> |
---|
| 81 | DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> |
---|
| 82 | </TR> |
---|
| 83 | </TABLE> |
---|
| 84 | <A NAME="skip-navbar_top"></A> |
---|
| 85 | <!-- ========= END OF TOP NAVBAR ========= --> |
---|
| 86 | |
---|
| 87 | <HR> |
---|
| 88 | <!-- ======== START OF CLASS DATA ======== --> |
---|
| 89 | <H2> |
---|
| 90 | <FONT SIZE="-1"> |
---|
| 91 | org.apache.hadoop.io</FONT> |
---|
| 92 | <BR> |
---|
| 93 | Class WritableUtils</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.WritableUtils</B> |
---|
| 97 | </PRE> |
---|
| 98 | <HR> |
---|
| 99 | <DL> |
---|
| 100 | <DT><PRE>public final class <B>WritableUtils</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></DL> |
---|
| 101 | </PRE> |
---|
| 102 | |
---|
| 103 | <P> |
---|
| 104 | <HR> |
---|
| 105 | |
---|
| 106 | <P> |
---|
| 107 | |
---|
| 108 | <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
---|
| 109 | |
---|
| 110 | <A NAME="constructor_summary"><!-- --></A> |
---|
| 111 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 112 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 113 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
---|
| 114 | <B>Constructor Summary</B></FONT></TH> |
---|
| 115 | </TR> |
---|
| 116 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 117 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#WritableUtils()">WritableUtils</A></B>()</CODE> |
---|
| 118 | |
---|
| 119 | <BR> |
---|
| 120 | </TD> |
---|
| 121 | </TR> |
---|
| 122 | </TABLE> |
---|
| 123 | |
---|
| 124 | <!-- ========== METHOD SUMMARY =========== --> |
---|
| 125 | |
---|
| 126 | <A NAME="method_summary"><!-- --></A> |
---|
| 127 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 128 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 129 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
---|
| 130 | <B>Method Summary</B></FONT></TH> |
---|
| 131 | </TR> |
---|
| 132 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 133 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 134 | <CODE>static |
---|
| 135 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
---|
| 136 | <TR ALIGN="right" VALIGN=""> |
---|
| 137 | <TD NOWRAP><FONT SIZE="-1"> |
---|
| 138 | <CODE><T extends <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>> |
---|
| 139 | <BR> |
---|
| 140 | T</CODE></FONT></TD> |
---|
| 141 | </TR> |
---|
| 142 | </TABLE> |
---|
| 143 | </CODE></FONT></TD> |
---|
| 144 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#clone(T, org.apache.hadoop.conf.Configuration)">clone</A></B>(T orig, |
---|
| 145 | <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf)</CODE> |
---|
| 146 | |
---|
| 147 | <BR> |
---|
| 148 | Make a copy of a writable object using serialization to a buffer.</TD> |
---|
| 149 | </TR> |
---|
| 150 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 151 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 152 | <CODE>static void</CODE></FONT></TD> |
---|
| 153 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#cloneInto(org.apache.hadoop.io.Writable, org.apache.hadoop.io.Writable)">cloneInto</A></B>(<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A> dst, |
---|
| 154 | <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A> src)</CODE> |
---|
| 155 | |
---|
| 156 | <BR> |
---|
| 157 | <B>Deprecated.</B> <I>use ReflectionUtils.cloneInto instead.</I></TD> |
---|
| 158 | </TR> |
---|
| 159 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 160 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 161 | <CODE>static int</CODE></FONT></TD> |
---|
| 162 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#decodeVIntSize(byte)">decodeVIntSize</A></B>(byte value)</CODE> |
---|
| 163 | |
---|
| 164 | <BR> |
---|
| 165 | Parse the first byte of a vint/vlong to determine the number of bytes</TD> |
---|
| 166 | </TR> |
---|
| 167 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 168 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 169 | <CODE>static void</CODE></FONT></TD> |
---|
| 170 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#displayByteArray(byte[])">displayByteArray</A></B>(byte[] record)</CODE> |
---|
| 171 | |
---|
| 172 | <BR> |
---|
| 173 | </TD> |
---|
| 174 | </TR> |
---|
| 175 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 176 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 177 | <CODE>static int</CODE></FONT></TD> |
---|
| 178 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#getVIntSize(long)">getVIntSize</A></B>(long i)</CODE> |
---|
| 179 | |
---|
| 180 | <BR> |
---|
| 181 | Get the encoded length if an integer is stored in a variable-length format</TD> |
---|
| 182 | </TR> |
---|
| 183 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 184 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 185 | <CODE>static boolean</CODE></FONT></TD> |
---|
| 186 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#isNegativeVInt(byte)">isNegativeVInt</A></B>(byte value)</CODE> |
---|
| 187 | |
---|
| 188 | <BR> |
---|
| 189 | Given the first byte of a vint/vlong, determine the sign</TD> |
---|
| 190 | </TR> |
---|
| 191 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 192 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 193 | <CODE>static byte[]</CODE></FONT></TD> |
---|
| 194 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readCompressedByteArray(java.io.DataInput)">readCompressedByteArray</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> in)</CODE> |
---|
| 195 | |
---|
| 196 | <BR> |
---|
| 197 | </TD> |
---|
| 198 | </TR> |
---|
| 199 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 200 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 201 | <CODE>static <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> |
---|
| 202 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readCompressedString(java.io.DataInput)">readCompressedString</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> in)</CODE> |
---|
| 203 | |
---|
| 204 | <BR> |
---|
| 205 | </TD> |
---|
| 206 | </TR> |
---|
| 207 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 208 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 209 | <CODE>static <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> |
---|
| 210 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readCompressedStringArray(java.io.DataInput)">readCompressedStringArray</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> in)</CODE> |
---|
| 211 | |
---|
| 212 | <BR> |
---|
| 213 | </TD> |
---|
| 214 | </TR> |
---|
| 215 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 216 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 217 | <CODE>static |
---|
| 218 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
---|
| 219 | <TR ALIGN="right" VALIGN=""> |
---|
| 220 | <TD NOWRAP><FONT SIZE="-1"> |
---|
| 221 | <CODE><T extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A><T>> |
---|
| 222 | <BR> |
---|
| 223 | T</CODE></FONT></TD> |
---|
| 224 | </TR> |
---|
| 225 | </TABLE> |
---|
| 226 | </CODE></FONT></TD> |
---|
| 227 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readEnum(java.io.DataInput, java.lang.Class)">readEnum</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> in, |
---|
| 228 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><T> enumType)</CODE> |
---|
| 229 | |
---|
| 230 | <BR> |
---|
| 231 | Read an Enum value from DataInput, Enums are read and written |
---|
| 232 | using String values.</TD> |
---|
| 233 | </TR> |
---|
| 234 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 235 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 236 | <CODE>static <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> |
---|
| 237 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readString(java.io.DataInput)">readString</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> in)</CODE> |
---|
| 238 | |
---|
| 239 | <BR> |
---|
| 240 | </TD> |
---|
| 241 | </TR> |
---|
| 242 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 243 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 244 | <CODE>static <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> |
---|
| 245 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readStringArray(java.io.DataInput)">readStringArray</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> in)</CODE> |
---|
| 246 | |
---|
| 247 | <BR> |
---|
| 248 | </TD> |
---|
| 249 | </TR> |
---|
| 250 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 251 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 252 | <CODE>static int</CODE></FONT></TD> |
---|
| 253 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readVInt(java.io.DataInput)">readVInt</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> stream)</CODE> |
---|
| 254 | |
---|
| 255 | <BR> |
---|
| 256 | Reads a zero-compressed encoded integer from input stream and returns it.</TD> |
---|
| 257 | </TR> |
---|
| 258 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 259 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 260 | <CODE>static long</CODE></FONT></TD> |
---|
| 261 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#readVLong(java.io.DataInput)">readVLong</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> stream)</CODE> |
---|
| 262 | |
---|
| 263 | <BR> |
---|
| 264 | Reads a zero-compressed encoded long from input stream and returns it.</TD> |
---|
| 265 | </TR> |
---|
| 266 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 267 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 268 | <CODE>static void</CODE></FONT></TD> |
---|
| 269 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#skipCompressedByteArray(java.io.DataInput)">skipCompressedByteArray</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> in)</CODE> |
---|
| 270 | |
---|
| 271 | <BR> |
---|
| 272 | </TD> |
---|
| 273 | </TR> |
---|
| 274 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 275 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 276 | <CODE>static void</CODE></FONT></TD> |
---|
| 277 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#skipFully(java.io.DataInput, int)">skipFully</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> in, |
---|
| 278 | int len)</CODE> |
---|
| 279 | |
---|
| 280 | <BR> |
---|
| 281 | Skip <i>len</i> number of bytes in input stream<i>in</i></TD> |
---|
| 282 | </TR> |
---|
| 283 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 284 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 285 | <CODE>static byte[]</CODE></FONT></TD> |
---|
| 286 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#toByteArray(org.apache.hadoop.io.Writable...)">toByteArray</A></B>(<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>... writables)</CODE> |
---|
| 287 | |
---|
| 288 | <BR> |
---|
| 289 | Convert writables to a byte array</TD> |
---|
| 290 | </TR> |
---|
| 291 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 292 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 293 | <CODE>static int</CODE></FONT></TD> |
---|
| 294 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeCompressedByteArray(java.io.DataOutput, byte[])">writeCompressedByteArray</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> out, |
---|
| 295 | byte[] bytes)</CODE> |
---|
| 296 | |
---|
| 297 | <BR> |
---|
| 298 | </TD> |
---|
| 299 | </TR> |
---|
| 300 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 301 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 302 | <CODE>static int</CODE></FONT></TD> |
---|
| 303 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeCompressedString(java.io.DataOutput, java.lang.String)">writeCompressedString</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> out, |
---|
| 304 | <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> s)</CODE> |
---|
| 305 | |
---|
| 306 | <BR> |
---|
| 307 | </TD> |
---|
| 308 | </TR> |
---|
| 309 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 310 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 311 | <CODE>static void</CODE></FONT></TD> |
---|
| 312 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeCompressedStringArray(java.io.DataOutput, java.lang.String[])">writeCompressedStringArray</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> out, |
---|
| 313 | <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>[] s)</CODE> |
---|
| 314 | |
---|
| 315 | <BR> |
---|
| 316 | </TD> |
---|
| 317 | </TR> |
---|
| 318 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 319 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 320 | <CODE>static void</CODE></FONT></TD> |
---|
| 321 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeEnum(java.io.DataOutput, java.lang.Enum)">writeEnum</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> out, |
---|
| 322 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A><?> enumVal)</CODE> |
---|
| 323 | |
---|
| 324 | <BR> |
---|
| 325 | writes String value of enum to DataOutput.</TD> |
---|
| 326 | </TR> |
---|
| 327 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 328 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 329 | <CODE>static void</CODE></FONT></TD> |
---|
| 330 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeString(java.io.DataOutput, java.lang.String)">writeString</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> out, |
---|
| 331 | <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> s)</CODE> |
---|
| 332 | |
---|
| 333 | <BR> |
---|
| 334 | </TD> |
---|
| 335 | </TR> |
---|
| 336 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 337 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 338 | <CODE>static void</CODE></FONT></TD> |
---|
| 339 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeStringArray(java.io.DataOutput, java.lang.String[])">writeStringArray</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> out, |
---|
| 340 | <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>[] s)</CODE> |
---|
| 341 | |
---|
| 342 | <BR> |
---|
| 343 | </TD> |
---|
| 344 | </TR> |
---|
| 345 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 346 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 347 | <CODE>static void</CODE></FONT></TD> |
---|
| 348 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeVInt(java.io.DataOutput, int)">writeVInt</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> stream, |
---|
| 349 | int i)</CODE> |
---|
| 350 | |
---|
| 351 | <BR> |
---|
| 352 | Serializes an integer to a binary stream with zero-compressed encoding.</TD> |
---|
| 353 | </TR> |
---|
| 354 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 355 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 356 | <CODE>static void</CODE></FONT></TD> |
---|
| 357 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/WritableUtils.html#writeVLong(java.io.DataOutput, long)">writeVLong</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> stream, |
---|
| 358 | long i)</CODE> |
---|
| 359 | |
---|
| 360 | <BR> |
---|
| 361 | Serializes a long to a binary stream with zero-compressed encoding.</TD> |
---|
| 362 | </TR> |
---|
| 363 | </TABLE> |
---|
| 364 | <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
---|
| 365 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 366 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
---|
| 367 | <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> |
---|
| 368 | </TR> |
---|
| 369 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 370 | <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> |
---|
| 371 | </TR> |
---|
| 372 | </TABLE> |
---|
| 373 | |
---|
| 374 | <P> |
---|
| 375 | |
---|
| 376 | <!-- ========= CONSTRUCTOR DETAIL ======== --> |
---|
| 377 | |
---|
| 378 | <A NAME="constructor_detail"><!-- --></A> |
---|
| 379 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 380 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 381 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
---|
| 382 | <B>Constructor Detail</B></FONT></TH> |
---|
| 383 | </TR> |
---|
| 384 | </TABLE> |
---|
| 385 | |
---|
| 386 | <A NAME="WritableUtils()"><!-- --></A><H3> |
---|
| 387 | WritableUtils</H3> |
---|
| 388 | <PRE> |
---|
| 389 | public <B>WritableUtils</B>()</PRE> |
---|
| 390 | <DL> |
---|
| 391 | </DL> |
---|
| 392 | |
---|
| 393 | <!-- ============ METHOD DETAIL ========== --> |
---|
| 394 | |
---|
| 395 | <A NAME="method_detail"><!-- --></A> |
---|
| 396 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 397 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 398 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
---|
| 399 | <B>Method Detail</B></FONT></TH> |
---|
| 400 | </TR> |
---|
| 401 | </TABLE> |
---|
| 402 | |
---|
| 403 | <A NAME="readCompressedByteArray(java.io.DataInput)"><!-- --></A><H3> |
---|
| 404 | readCompressedByteArray</H3> |
---|
| 405 | <PRE> |
---|
| 406 | public static byte[] <B>readCompressedByteArray</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> in) |
---|
| 407 | 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> |
---|
| 408 | <DL> |
---|
| 409 | <DD><DL> |
---|
| 410 | |
---|
| 411 | <DT><B>Throws:</B> |
---|
| 412 | <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> |
---|
| 413 | </DD> |
---|
| 414 | </DL> |
---|
| 415 | <HR> |
---|
| 416 | |
---|
| 417 | <A NAME="skipCompressedByteArray(java.io.DataInput)"><!-- --></A><H3> |
---|
| 418 | skipCompressedByteArray</H3> |
---|
| 419 | <PRE> |
---|
| 420 | public static void <B>skipCompressedByteArray</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> in) |
---|
| 421 | 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> |
---|
| 422 | <DL> |
---|
| 423 | <DD><DL> |
---|
| 424 | |
---|
| 425 | <DT><B>Throws:</B> |
---|
| 426 | <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> |
---|
| 427 | </DD> |
---|
| 428 | </DL> |
---|
| 429 | <HR> |
---|
| 430 | |
---|
| 431 | <A NAME="writeCompressedByteArray(java.io.DataOutput, byte[])"><!-- --></A><H3> |
---|
| 432 | writeCompressedByteArray</H3> |
---|
| 433 | <PRE> |
---|
| 434 | public static int <B>writeCompressedByteArray</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> out, |
---|
| 435 | byte[] bytes) |
---|
| 436 | 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> |
---|
| 437 | <DL> |
---|
| 438 | <DD><DL> |
---|
| 439 | |
---|
| 440 | <DT><B>Throws:</B> |
---|
| 441 | <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> |
---|
| 442 | </DD> |
---|
| 443 | </DL> |
---|
| 444 | <HR> |
---|
| 445 | |
---|
| 446 | <A NAME="readCompressedString(java.io.DataInput)"><!-- --></A><H3> |
---|
| 447 | readCompressedString</H3> |
---|
| 448 | <PRE> |
---|
| 449 | public static <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>readCompressedString</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> in) |
---|
| 450 | 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> |
---|
| 451 | <DL> |
---|
| 452 | <DD><DL> |
---|
| 453 | |
---|
| 454 | <DT><B>Throws:</B> |
---|
| 455 | <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> |
---|
| 456 | </DD> |
---|
| 457 | </DL> |
---|
| 458 | <HR> |
---|
| 459 | |
---|
| 460 | <A NAME="writeCompressedString(java.io.DataOutput, java.lang.String)"><!-- --></A><H3> |
---|
| 461 | writeCompressedString</H3> |
---|
| 462 | <PRE> |
---|
| 463 | public static int <B>writeCompressedString</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> out, |
---|
| 464 | <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> s) |
---|
| 465 | 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> |
---|
| 466 | <DL> |
---|
| 467 | <DD><DL> |
---|
| 468 | |
---|
| 469 | <DT><B>Throws:</B> |
---|
| 470 | <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> |
---|
| 471 | </DD> |
---|
| 472 | </DL> |
---|
| 473 | <HR> |
---|
| 474 | |
---|
| 475 | <A NAME="writeString(java.io.DataOutput, java.lang.String)"><!-- --></A><H3> |
---|
| 476 | writeString</H3> |
---|
| 477 | <PRE> |
---|
| 478 | public static void <B>writeString</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> out, |
---|
| 479 | <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> s) |
---|
| 480 | 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> |
---|
| 481 | <DL> |
---|
| 482 | <DD><DL> |
---|
| 483 | |
---|
| 484 | <DT><B>Throws:</B> |
---|
| 485 | <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> |
---|
| 486 | </DD> |
---|
| 487 | </DL> |
---|
| 488 | <HR> |
---|
| 489 | |
---|
| 490 | <A NAME="readString(java.io.DataInput)"><!-- --></A><H3> |
---|
| 491 | readString</H3> |
---|
| 492 | <PRE> |
---|
| 493 | public static <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>readString</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> in) |
---|
| 494 | 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> |
---|
| 495 | <DL> |
---|
| 496 | <DD><DL> |
---|
| 497 | |
---|
| 498 | <DT><B>Throws:</B> |
---|
| 499 | <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> |
---|
| 500 | </DD> |
---|
| 501 | </DL> |
---|
| 502 | <HR> |
---|
| 503 | |
---|
| 504 | <A NAME="writeStringArray(java.io.DataOutput, java.lang.String[])"><!-- --></A><H3> |
---|
| 505 | writeStringArray</H3> |
---|
| 506 | <PRE> |
---|
| 507 | public static void <B>writeStringArray</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> out, |
---|
| 508 | <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>[] s) |
---|
| 509 | 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> |
---|
| 510 | <DL> |
---|
| 511 | <DD><DL> |
---|
| 512 | |
---|
| 513 | <DT><B>Throws:</B> |
---|
| 514 | <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> |
---|
| 515 | </DD> |
---|
| 516 | </DL> |
---|
| 517 | <HR> |
---|
| 518 | |
---|
| 519 | <A NAME="writeCompressedStringArray(java.io.DataOutput, java.lang.String[])"><!-- --></A><H3> |
---|
| 520 | writeCompressedStringArray</H3> |
---|
| 521 | <PRE> |
---|
| 522 | public static void <B>writeCompressedStringArray</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> out, |
---|
| 523 | <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>[] s) |
---|
| 524 | 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> |
---|
| 525 | <DL> |
---|
| 526 | <DD><DL> |
---|
| 527 | |
---|
| 528 | <DT><B>Throws:</B> |
---|
| 529 | <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> |
---|
| 530 | </DD> |
---|
| 531 | </DL> |
---|
| 532 | <HR> |
---|
| 533 | |
---|
| 534 | <A NAME="readStringArray(java.io.DataInput)"><!-- --></A><H3> |
---|
| 535 | readStringArray</H3> |
---|
| 536 | <PRE> |
---|
| 537 | public static <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>readStringArray</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> in) |
---|
| 538 | 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> |
---|
| 539 | <DL> |
---|
| 540 | <DD><DL> |
---|
| 541 | |
---|
| 542 | <DT><B>Throws:</B> |
---|
| 543 | <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> |
---|
| 544 | </DD> |
---|
| 545 | </DL> |
---|
| 546 | <HR> |
---|
| 547 | |
---|
| 548 | <A NAME="readCompressedStringArray(java.io.DataInput)"><!-- --></A><H3> |
---|
| 549 | readCompressedStringArray</H3> |
---|
| 550 | <PRE> |
---|
| 551 | public static <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>readCompressedStringArray</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> in) |
---|
| 552 | 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> |
---|
| 553 | <DL> |
---|
| 554 | <DD><DL> |
---|
| 555 | |
---|
| 556 | <DT><B>Throws:</B> |
---|
| 557 | <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> |
---|
| 558 | </DD> |
---|
| 559 | </DL> |
---|
| 560 | <HR> |
---|
| 561 | |
---|
| 562 | <A NAME="displayByteArray(byte[])"><!-- --></A><H3> |
---|
| 563 | displayByteArray</H3> |
---|
| 564 | <PRE> |
---|
| 565 | public static void <B>displayByteArray</B>(byte[] record)</PRE> |
---|
| 566 | <DL> |
---|
| 567 | <DD><DL> |
---|
| 568 | </DL> |
---|
| 569 | </DD> |
---|
| 570 | </DL> |
---|
| 571 | <HR> |
---|
| 572 | |
---|
| 573 | <A NAME="clone(org.apache.hadoop.io.Writable,org.apache.hadoop.conf.Configuration)"><!-- --></A><A NAME="clone(T, org.apache.hadoop.conf.Configuration)"><!-- --></A><H3> |
---|
| 574 | clone</H3> |
---|
| 575 | <PRE> |
---|
| 576 | public static <T extends <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>> T <B>clone</B>(T orig, |
---|
| 577 | <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf)</PRE> |
---|
| 578 | <DL> |
---|
| 579 | <DD>Make a copy of a writable object using serialization to a buffer. |
---|
| 580 | <P> |
---|
| 581 | <DD><DL> |
---|
| 582 | <DT><B>Parameters:</B><DD><CODE>orig</CODE> - The object to copy |
---|
| 583 | <DT><B>Returns:</B><DD>The copied object</DL> |
---|
| 584 | </DD> |
---|
| 585 | </DL> |
---|
| 586 | <HR> |
---|
| 587 | |
---|
| 588 | <A NAME="cloneInto(org.apache.hadoop.io.Writable, org.apache.hadoop.io.Writable)"><!-- --></A><H3> |
---|
| 589 | cloneInto</H3> |
---|
| 590 | <PRE> |
---|
| 591 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 592 | </FONT>public static void <B>cloneInto</B>(<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A> dst, |
---|
| 593 | <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A> src) |
---|
| 594 | 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> |
---|
| 595 | <DL> |
---|
| 596 | <DD><B>Deprecated.</B> <I>use ReflectionUtils.cloneInto instead.</I> |
---|
| 597 | <P> |
---|
| 598 | <DD>Make a copy of the writable object using serialiation to a buffer |
---|
| 599 | <P> |
---|
| 600 | <DD><DL> |
---|
| 601 | <DT><B>Parameters:</B><DD><CODE>dst</CODE> - the object to copy from<DD><CODE>src</CODE> - the object to copy into, which is destroyed |
---|
| 602 | <DT><B>Throws:</B> |
---|
| 603 | <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> |
---|
| 604 | </DD> |
---|
| 605 | </DL> |
---|
| 606 | <HR> |
---|
| 607 | |
---|
| 608 | <A NAME="writeVInt(java.io.DataOutput, int)"><!-- --></A><H3> |
---|
| 609 | writeVInt</H3> |
---|
| 610 | <PRE> |
---|
| 611 | public static void <B>writeVInt</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> stream, |
---|
| 612 | int i) |
---|
| 613 | 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> |
---|
| 614 | <DL> |
---|
| 615 | <DD>Serializes an integer to a binary stream with zero-compressed encoding. |
---|
| 616 | For -120 <= i <= 127, only one byte is used with the actual value. |
---|
| 617 | For other values of i, the first byte value indicates whether the |
---|
| 618 | integer is positive or negative, and the number of bytes that follow. |
---|
| 619 | If the first byte value v is between -121 and -124, the following integer |
---|
| 620 | is positive, with number of bytes that follow are -(v+120). |
---|
| 621 | If the first byte value v is between -125 and -128, the following integer |
---|
| 622 | is negative, with number of bytes that follow are -(v+124). Bytes are |
---|
| 623 | stored in the high-non-zero-byte-first order. |
---|
| 624 | <P> |
---|
| 625 | <DD><DL> |
---|
| 626 | <DT><B>Parameters:</B><DD><CODE>stream</CODE> - Binary output stream<DD><CODE>i</CODE> - Integer to be serialized |
---|
| 627 | <DT><B>Throws:</B> |
---|
| 628 | <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> |
---|
| 629 | </DD> |
---|
| 630 | </DL> |
---|
| 631 | <HR> |
---|
| 632 | |
---|
| 633 | <A NAME="writeVLong(java.io.DataOutput, long)"><!-- --></A><H3> |
---|
| 634 | writeVLong</H3> |
---|
| 635 | <PRE> |
---|
| 636 | public static void <B>writeVLong</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> stream, |
---|
| 637 | long i) |
---|
| 638 | 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> |
---|
| 639 | <DL> |
---|
| 640 | <DD>Serializes a long to a binary stream with zero-compressed encoding. |
---|
| 641 | For -112 <= i <= 127, only one byte is used with the actual value. |
---|
| 642 | For other values of i, the first byte value indicates whether the |
---|
| 643 | long is positive or negative, and the number of bytes that follow. |
---|
| 644 | If the first byte value v is between -113 and -120, the following long |
---|
| 645 | is positive, with number of bytes that follow are -(v+112). |
---|
| 646 | If the first byte value v is between -121 and -128, the following long |
---|
| 647 | is negative, with number of bytes that follow are -(v+120). Bytes are |
---|
| 648 | stored in the high-non-zero-byte-first order. |
---|
| 649 | <P> |
---|
| 650 | <DD><DL> |
---|
| 651 | <DT><B>Parameters:</B><DD><CODE>stream</CODE> - Binary output stream<DD><CODE>i</CODE> - Long to be serialized |
---|
| 652 | <DT><B>Throws:</B> |
---|
| 653 | <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> |
---|
| 654 | </DD> |
---|
| 655 | </DL> |
---|
| 656 | <HR> |
---|
| 657 | |
---|
| 658 | <A NAME="readVLong(java.io.DataInput)"><!-- --></A><H3> |
---|
| 659 | readVLong</H3> |
---|
| 660 | <PRE> |
---|
| 661 | public static long <B>readVLong</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> stream) |
---|
| 662 | 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> |
---|
| 663 | <DL> |
---|
| 664 | <DD>Reads a zero-compressed encoded long from input stream and returns it. |
---|
| 665 | <P> |
---|
| 666 | <DD><DL> |
---|
| 667 | <DT><B>Parameters:</B><DD><CODE>stream</CODE> - Binary input stream |
---|
| 668 | <DT><B>Returns:</B><DD>deserialized long from stream. |
---|
| 669 | <DT><B>Throws:</B> |
---|
| 670 | <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> |
---|
| 671 | </DD> |
---|
| 672 | </DL> |
---|
| 673 | <HR> |
---|
| 674 | |
---|
| 675 | <A NAME="readVInt(java.io.DataInput)"><!-- --></A><H3> |
---|
| 676 | readVInt</H3> |
---|
| 677 | <PRE> |
---|
| 678 | public static int <B>readVInt</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> stream) |
---|
| 679 | 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> |
---|
| 680 | <DL> |
---|
| 681 | <DD>Reads a zero-compressed encoded integer from input stream and returns it. |
---|
| 682 | <P> |
---|
| 683 | <DD><DL> |
---|
| 684 | <DT><B>Parameters:</B><DD><CODE>stream</CODE> - Binary input stream |
---|
| 685 | <DT><B>Returns:</B><DD>deserialized integer from stream. |
---|
| 686 | <DT><B>Throws:</B> |
---|
| 687 | <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> |
---|
| 688 | </DD> |
---|
| 689 | </DL> |
---|
| 690 | <HR> |
---|
| 691 | |
---|
| 692 | <A NAME="isNegativeVInt(byte)"><!-- --></A><H3> |
---|
| 693 | isNegativeVInt</H3> |
---|
| 694 | <PRE> |
---|
| 695 | public static boolean <B>isNegativeVInt</B>(byte value)</PRE> |
---|
| 696 | <DL> |
---|
| 697 | <DD>Given the first byte of a vint/vlong, determine the sign |
---|
| 698 | <P> |
---|
| 699 | <DD><DL> |
---|
| 700 | <DT><B>Parameters:</B><DD><CODE>value</CODE> - the first byte |
---|
| 701 | <DT><B>Returns:</B><DD>is the value negative</DL> |
---|
| 702 | </DD> |
---|
| 703 | </DL> |
---|
| 704 | <HR> |
---|
| 705 | |
---|
| 706 | <A NAME="decodeVIntSize(byte)"><!-- --></A><H3> |
---|
| 707 | decodeVIntSize</H3> |
---|
| 708 | <PRE> |
---|
| 709 | public static int <B>decodeVIntSize</B>(byte value)</PRE> |
---|
| 710 | <DL> |
---|
| 711 | <DD>Parse the first byte of a vint/vlong to determine the number of bytes |
---|
| 712 | <P> |
---|
| 713 | <DD><DL> |
---|
| 714 | <DT><B>Parameters:</B><DD><CODE>value</CODE> - the first byte of the vint/vlong |
---|
| 715 | <DT><B>Returns:</B><DD>the total number of bytes (1 to 9)</DL> |
---|
| 716 | </DD> |
---|
| 717 | </DL> |
---|
| 718 | <HR> |
---|
| 719 | |
---|
| 720 | <A NAME="getVIntSize(long)"><!-- --></A><H3> |
---|
| 721 | getVIntSize</H3> |
---|
| 722 | <PRE> |
---|
| 723 | public static int <B>getVIntSize</B>(long i)</PRE> |
---|
| 724 | <DL> |
---|
| 725 | <DD>Get the encoded length if an integer is stored in a variable-length format |
---|
| 726 | <P> |
---|
| 727 | <DD><DL> |
---|
| 728 | |
---|
| 729 | <DT><B>Returns:</B><DD>the encoded length</DL> |
---|
| 730 | </DD> |
---|
| 731 | </DL> |
---|
| 732 | <HR> |
---|
| 733 | |
---|
| 734 | <A NAME="readEnum(java.io.DataInput, java.lang.Class)"><!-- --></A><H3> |
---|
| 735 | readEnum</H3> |
---|
| 736 | <PRE> |
---|
| 737 | public static <T extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A><T>> T <B>readEnum</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> in, |
---|
| 738 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><T> enumType) |
---|
| 739 | 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> |
---|
| 740 | <DL> |
---|
| 741 | <DD>Read an Enum value from DataInput, Enums are read and written |
---|
| 742 | using String values. |
---|
| 743 | <P> |
---|
| 744 | <DD><DL> |
---|
| 745 | <DT><B>Type Parameters:</B><DD><CODE>T</CODE> - Enum type<DT><B>Parameters:</B><DD><CODE>in</CODE> - DataInput to read from<DD><CODE>enumType</CODE> - Class type of Enum |
---|
| 746 | <DT><B>Returns:</B><DD>Enum represented by String read from DataInput |
---|
| 747 | <DT><B>Throws:</B> |
---|
| 748 | <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> |
---|
| 749 | </DD> |
---|
| 750 | </DL> |
---|
| 751 | <HR> |
---|
| 752 | |
---|
| 753 | <A NAME="writeEnum(java.io.DataOutput, java.lang.Enum)"><!-- --></A><H3> |
---|
| 754 | writeEnum</H3> |
---|
| 755 | <PRE> |
---|
| 756 | public static void <B>writeEnum</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> out, |
---|
| 757 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A><?> enumVal) |
---|
| 758 | 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> |
---|
| 759 | <DL> |
---|
| 760 | <DD>writes String value of enum to DataOutput. |
---|
| 761 | <P> |
---|
| 762 | <DD><DL> |
---|
| 763 | <DT><B>Parameters:</B><DD><CODE>out</CODE> - Dataoutput stream<DD><CODE>enumVal</CODE> - enum value |
---|
| 764 | <DT><B>Throws:</B> |
---|
| 765 | <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> |
---|
| 766 | </DD> |
---|
| 767 | </DL> |
---|
| 768 | <HR> |
---|
| 769 | |
---|
| 770 | <A NAME="skipFully(java.io.DataInput, int)"><!-- --></A><H3> |
---|
| 771 | skipFully</H3> |
---|
| 772 | <PRE> |
---|
| 773 | public static void <B>skipFully</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> in, |
---|
| 774 | int len) |
---|
| 775 | 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> |
---|
| 776 | <DL> |
---|
| 777 | <DD>Skip <i>len</i> number of bytes in input stream<i>in</i> |
---|
| 778 | <P> |
---|
| 779 | <DD><DL> |
---|
| 780 | <DT><B>Parameters:</B><DD><CODE>in</CODE> - input stream<DD><CODE>len</CODE> - number of bytes to skip |
---|
| 781 | <DT><B>Throws:</B> |
---|
| 782 | <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> - when skipped less number of bytes</DL> |
---|
| 783 | </DD> |
---|
| 784 | </DL> |
---|
| 785 | <HR> |
---|
| 786 | |
---|
| 787 | <A NAME="toByteArray(org.apache.hadoop.io.Writable...)"><!-- --></A><H3> |
---|
| 788 | toByteArray</H3> |
---|
| 789 | <PRE> |
---|
| 790 | public static byte[] <B>toByteArray</B>(<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>... writables)</PRE> |
---|
| 791 | <DL> |
---|
| 792 | <DD>Convert writables to a byte array |
---|
| 793 | <P> |
---|
| 794 | <DD><DL> |
---|
| 795 | </DL> |
---|
| 796 | </DD> |
---|
| 797 | </DL> |
---|
| 798 | <!-- ========= END OF CLASS DATA ========= --> |
---|
| 799 | <HR> |
---|
| 800 | |
---|
| 801 | |
---|
| 802 | <!-- ======= START OF BOTTOM NAVBAR ====== --> |
---|
| 803 | <A NAME="navbar_bottom"><!-- --></A> |
---|
| 804 | <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> |
---|
| 805 | <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> |
---|
| 806 | <TR> |
---|
| 807 | <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> |
---|
| 808 | <A NAME="navbar_bottom_firstrow"><!-- --></A> |
---|
| 809 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> |
---|
| 810 | <TR ALIGN="center" VALIGN="top"> |
---|
| 811 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> |
---|
| 812 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> |
---|
| 813 | <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> |
---|
| 814 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/WritableUtils.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> |
---|
| 815 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> |
---|
| 816 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> |
---|
| 817 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> |
---|
| 818 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> |
---|
| 819 | </TR> |
---|
| 820 | </TABLE> |
---|
| 821 | </TD> |
---|
| 822 | <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> |
---|
| 823 | </EM> |
---|
| 824 | </TD> |
---|
| 825 | </TR> |
---|
| 826 | |
---|
| 827 | <TR> |
---|
| 828 | <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
---|
| 829 | <A HREF="../../../../org/apache/hadoop/io/WritableName.html" title="class in org.apache.hadoop.io"><B>PREV CLASS</B></A> |
---|
| 830 | NEXT CLASS</FONT></TD> |
---|
| 831 | <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
---|
| 832 | <A HREF="../../../../index.html?org/apache/hadoop/io/WritableUtils.html" target="_top"><B>FRAMES</B></A> |
---|
| 833 | <A HREF="WritableUtils.html" target="_top"><B>NO FRAMES</B></A> |
---|
| 834 | <SCRIPT type="text/javascript"> |
---|
| 835 | <!-- |
---|
| 836 | if(window==top) { |
---|
| 837 | document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); |
---|
| 838 | } |
---|
| 839 | //--> |
---|
| 840 | </SCRIPT> |
---|
| 841 | <NOSCRIPT> |
---|
| 842 | <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A> |
---|
| 843 | </NOSCRIPT> |
---|
| 844 | |
---|
| 845 | |
---|
| 846 | </FONT></TD> |
---|
| 847 | </TR> |
---|
| 848 | <TR> |
---|
| 849 | <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> |
---|
| 850 | SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> |
---|
| 851 | <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> |
---|
| 852 | DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> |
---|
| 853 | </TR> |
---|
| 854 | </TABLE> |
---|
| 855 | <A NAME="skip-navbar_bottom"></A> |
---|
| 856 | <!-- ======== END OF BOTTOM NAVBAR ======= --> |
---|
| 857 | |
---|
| 858 | <HR> |
---|
| 859 | Copyright © 2009 The Apache Software Foundation |
---|
| 860 | </BODY> |
---|
| 861 | </HTML> |
---|