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| <h2 title="Class Utils" class="title">Class Utils</h2> |
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| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
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| <br> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a> |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class <span class="typeNameLabel">Utils</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Various utility functions for Hadoop record I/O runtime.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static char[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#hexchars">hexchars</a></span></code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#compareBytes-byte:A-int-int-byte:A-int-int-">compareBytes</a></span>(byte[] b1, |
| int s1, |
| int l1, |
| byte[] b2, |
| int s2, |
| int l2)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Lexicographic order of binary data.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#getVIntSize-long-">getVIntSize</a></span>(long i)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Get the encoded length if an integer is stored in a variable-length format</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readDouble-byte:A-int-">readDouble</a></span>(byte[] bytes, |
| int start)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Parse a double from a byte array.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readFloat-byte:A-int-">readFloat</a></span>(byte[] bytes, |
| int start)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Parse a float from a byte array.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readVInt-byte:A-int-">readVInt</a></span>(byte[] bytes, |
| int start)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded integer from a byte array and returns it.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readVInt-java.io.DataInput-">readVInt</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded integer from a stream and returns it.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readVLong-byte:A-int-">readVLong</a></span>(byte[] bytes, |
| int start)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded long from a byte array and returns it.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#readVLong-java.io.DataInput-">readVLong</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded long from a stream and return it.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#writeVInt-java.io.DataOutput-int-">writeVInt</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> stream, |
| int i)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Serializes an int to a binary stream with zero-compressed encoding.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/record/Utils.html#writeVLong-java.io.DataOutput-long-">writeVLong</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> stream, |
| long i)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Serializes a long to a binary stream with zero-compressed encoding.</div> |
| </td> |
| </tr> |
| </table> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"> |
| <h4>hexchars</h4> |
| <pre>public static final char[] hexchars</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <ul class="blockList"> |
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| <h4>readFloat</h4> |
| <pre>public static float readFloat(byte[] bytes, |
| int start)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Parse a float from a byte array.</div> |
| </li> |
| </ul> |
| <a name="readDouble-byte:A-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readDouble</h4> |
| <pre>public static double readDouble(byte[] bytes, |
| int start)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Parse a double from a byte array.</div> |
| </li> |
| </ul> |
| <a name="readVLong-byte:A-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readVLong</h4> |
| <pre>public static long readVLong(byte[] bytes, |
| int start) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded long from a byte array and returns it.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>bytes</code> - byte array with decode long</dd> |
| <dd><code>start</code> - starting index</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deserialized long</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| </a> |
| <ul class="blockList"> |
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| <h4>readVInt</h4> |
| <pre>public static int readVInt(byte[] bytes, |
| int start) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded integer from a byte array and returns it.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>bytes</code> - byte array with the encoded integer</dd> |
| <dd><code>start</code> - start index</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deserialized integer</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>readVLong</h4> |
| <pre>public static long readVLong(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded long from a stream and return it.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>in</code> - input stream</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deserialized long</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readVInt-java.io.DataInput-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readVInt</h4> |
| <pre>public static int readVInt(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Reads a zero-compressed encoded integer from a stream and returns it.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>in</code> - input stream</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deserialized integer</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getVIntSize-long-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getVIntSize</h4> |
| <pre>public static int getVIntSize(long i)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Get the encoded length if an integer is stored in a variable-length format</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the encoded length</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="writeVLong-java.io.DataOutput-long-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>writeVLong</h4> |
| <pre>public static void writeVLong(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> stream, |
| long i) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Serializes a long to a binary stream with zero-compressed encoding. |
| For -112 <= i <= 127, only one byte is used with the actual |
| value. For other values of i, the first byte value indicates whether the |
| long is positive or negative, and the number of bytes that follow. |
| If the first byte value v is between -113 and -120, the following long |
| is positive, with number of bytes that follow are -(v+112). |
| If the first byte value v is between -121 and -128, the following long |
| is negative, with number of bytes that follow are -(v+120). Bytes are |
| stored in the high-non-zero-byte-first order.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stream</code> - Binary output stream</dd> |
| <dd><code>i</code> - Long to be serialized</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
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| <a name="writeVInt-java.io.DataOutput-int-"> |
| <!-- --> |
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| <h4>writeVInt</h4> |
| <pre>public static void writeVInt(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> stream, |
| int i) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Serializes an int to a binary stream with zero-compressed encoding.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stream</code> - Binary output stream</dd> |
| <dd><code>i</code> - int to be serialized</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <a name="compareBytes-byte:A-int-int-byte:A-int-int-"> |
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| <h4>compareBytes</h4> |
| <pre>public static int compareBytes(byte[] b1, |
| int s1, |
| int l1, |
| byte[] b2, |
| int s2, |
| int l2)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Lexicographic order of binary data.</div> |
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