Package org.apache.hadoop.io.file.tfile

Class ByteArray

java.lang.Object

org.apache.hadoop.io.file.tfile.ByteArray

All Implemented Interfaces:

RawComparable

@Private
@Unstable
public final class ByteArray
extends java.lang.Object
implements RawComparable

Adaptor class to wrap byte-array backed objects (including java byte array) as RawComparable objects.

Constructor Summary

Constructors

Constructor	Description
ByteArray(byte[] buffer)	Wrap a whole byte array as a RawComparable.
ByteArray(byte[] buffer, int offset, int len)	Wrap a partial byte array as a RawComparable.
ByteArray(BytesWritable other)	Constructing a ByteArray from a BytesWritable.

Method Summary

Modifier and Type	Method	Description
byte[]	buffer()	Get the underlying byte array.
int	offset()	Get the offset of the first byte in the byte array.
int	size()	Get the size of the byte range in the byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteArray

public ByteArray(BytesWritable other)

Constructing a ByteArray from a BytesWritable.

Parameters:

other - other.

ByteArray

public ByteArray(byte[] buffer)

Wrap a whole byte array as a RawComparable.

Parameters:

buffer - the byte array buffer.

ByteArray

public ByteArray(byte[] buffer,
                 int offset,
                 int len)

Wrap a partial byte array as a RawComparable.

Parameters:

buffer - the byte array buffer.

offset - the starting offset

len - the length of the consecutive bytes to be wrapped.

Method Detail

buffer

public byte[] buffer()

Description copied from interface: RawComparable

Get the underlying byte array.

Specified by:

buffer in interface RawComparable

Returns:

the underlying buffer.

offset

public int offset()

Description copied from interface: RawComparable

Get the offset of the first byte in the byte array.

Specified by:

offset in interface RawComparable

Returns:

the offset in the buffer.

size

public int size()

Description copied from interface: RawComparable

Get the size of the byte range in the byte array.

Specified by:

size in interface RawComparable

Returns:

the size of the byte array.