org.apache.hadoop.hive.serde2.binarysortable

Class InputByteBuffer

java.lang.Object

org.apache.hadoop.hive.serde2.binarysortable.InputByteBuffer

public class InputByteBuffer
extends Object

This class is much more efficient than ByteArrayInputStream because none of the methods are synchronized.

Constructor Summary

Constructors

Constructor and Description
InputByteBuffer()

Method Summary

Modifier and Type	Method and Description
String	dumpHex() Return the bytes in hex format.
byte[]	getData() Returns the underlying byte array.
int	getEnd()
boolean	isEof()
byte	read()
byte	read(boolean invert) Read one byte from the byte buffer.
void	reset(byte[] data, int start, int end) Reset the byte buffer to the given byte range.
void	seek(int position) Set the current position.
int	tell() Return the current position.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InputByteBuffer

public InputByteBuffer()

Method Detail

reset

public void reset(byte[] data,
                  int start,
                  int end)

Reset the byte buffer to the given byte range.

read

public final byte read()
                throws IOException

Throws:

IOException

read

public final byte read(boolean invert)
                throws IOException

Read one byte from the byte buffer. Final method to help inlining.

Parameters:

invert - whether we want to invert all the bits.

Throws:

IOException

tell

public final int tell()

Return the current position. Final method to help inlining.

seek

public final void seek(int position)

Set the current position. Final method to help inlining.

getEnd

public final int getEnd()

isEof

public final boolean isEof()

getData

public final byte[] getData()

Returns the underlying byte array.

dumpHex

public String dumpHex()

Return the bytes in hex format.