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| 7 | PositionedReadable (Hadoop 0.20.1 API) |
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| 89 | <H2> |
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| 90 | <FONT SIZE="-1"> |
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| 91 | org.apache.hadoop.fs</FONT> |
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| 92 | <BR> |
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| 93 | Interface PositionedReadable</H2> |
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| 94 | <DL> |
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| 95 | <DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/apache/hadoop/fs/BufferedFSInputStream.html" title="class in org.apache.hadoop.fs">BufferedFSInputStream</A>, <A HREF="../../../../org/apache/hadoop/fs/FSDataInputStream.html" title="class in org.apache.hadoop.fs">FSDataInputStream</A>, <A HREF="../../../../org/apache/hadoop/fs/FSInputChecker.html" title="class in org.apache.hadoop.fs">FSInputChecker</A>, <A HREF="../../../../org/apache/hadoop/fs/FSInputStream.html" title="class in org.apache.hadoop.fs">FSInputStream</A>, <A HREF="../../../../org/apache/hadoop/fs/ftp/FTPInputStream.html" title="class in org.apache.hadoop.fs.ftp">FTPInputStream</A></DD> |
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| 96 | </DL> |
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| 97 | <HR> |
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| 98 | <DL> |
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| 99 | <DT><PRE>public interface <B>PositionedReadable</B></DL> |
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| 100 | </PRE> |
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| 101 | |
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| 102 | <P> |
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| 103 | Stream that permits positional reading. |
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| 104 | <P> |
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| 105 | |
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| 120 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 121 | <CODE> int</CODE></FONT></TD> |
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| 122 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/fs/PositionedReadable.html#read(long, byte[], int, int)">read</A></B>(long position, |
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| 123 | byte[] buffer, |
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| 124 | int offset, |
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| 125 | int length)</CODE> |
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| 126 | |
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| 127 | <BR> |
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| 128 | Read upto the specified number of bytes, from a given |
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| 129 | position within a file, and return the number of bytes read.</TD> |
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| 130 | </TR> |
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| 131 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 132 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 133 | <CODE> void</CODE></FONT></TD> |
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| 134 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/fs/PositionedReadable.html#readFully(long, byte[])">readFully</A></B>(long position, |
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| 135 | byte[] buffer)</CODE> |
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| 136 | |
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| 137 | <BR> |
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| 138 | Read number of bytes equalt to the length of the buffer, from a given |
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| 139 | position within a file.</TD> |
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| 140 | </TR> |
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| 141 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 142 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 143 | <CODE> void</CODE></FONT></TD> |
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| 144 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/fs/PositionedReadable.html#readFully(long, byte[], int, int)">readFully</A></B>(long position, |
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| 145 | byte[] buffer, |
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| 146 | int offset, |
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| 147 | int length)</CODE> |
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| 148 | |
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| 149 | <BR> |
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| 150 | Read the specified number of bytes, from a given |
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| 151 | position within a file.</TD> |
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| 152 | </TR> |
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| 153 | </TABLE> |
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| 154 | |
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| 166 | |
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| 167 | <A NAME="read(long, byte[], int, int)"><!-- --></A><H3> |
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| 168 | read</H3> |
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| 169 | <PRE> |
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| 170 | int <B>read</B>(long position, |
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| 171 | byte[] buffer, |
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| 172 | int offset, |
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| 173 | int length) |
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| 174 | 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> |
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| 175 | <DL> |
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| 176 | <DD>Read upto the specified number of bytes, from a given |
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| 177 | position within a file, and return the number of bytes read. This does not |
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| 178 | change the current offset of a file, and is thread-safe. |
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| 179 | <P> |
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| 180 | <DD><DL> |
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| 181 | |
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| 182 | <DT><B>Throws:</B> |
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| 183 | <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> |
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| 184 | </DD> |
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| 185 | </DL> |
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| 186 | <HR> |
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| 187 | |
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| 188 | <A NAME="readFully(long, byte[], int, int)"><!-- --></A><H3> |
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| 189 | readFully</H3> |
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| 190 | <PRE> |
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| 191 | void <B>readFully</B>(long position, |
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| 192 | byte[] buffer, |
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| 193 | int offset, |
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| 194 | int length) |
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| 195 | 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> |
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| 196 | <DL> |
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| 197 | <DD>Read the specified number of bytes, from a given |
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| 198 | position within a file. This does not |
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| 199 | change the current offset of a file, and is thread-safe. |
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| 200 | <P> |
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| 201 | <DD><DL> |
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| 202 | |
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| 203 | <DT><B>Throws:</B> |
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| 204 | <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> |
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| 205 | </DD> |
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| 206 | </DL> |
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| 207 | <HR> |
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| 208 | |
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| 209 | <A NAME="readFully(long, byte[])"><!-- --></A><H3> |
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| 210 | readFully</H3> |
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| 211 | <PRE> |
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| 212 | void <B>readFully</B>(long position, |
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| 213 | byte[] buffer) |
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| 214 | 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> |
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| 215 | <DL> |
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| 216 | <DD>Read number of bytes equalt to the length of the buffer, from a given |
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| 217 | position within a file. This does not |
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| 218 | change the current offset of a file, and is thread-safe. |
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| 219 | <P> |
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| 220 | <DD><DL> |
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| 221 | |
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| 222 | <DT><B>Throws:</B> |
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| 223 | <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> |
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