eu.stratosphere.example.java.record.sort.terasort

Class TeraValue

java.lang.Object

eu.stratosphere.example.java.record.sort.terasort.TeraValue

All Implemented Interfaces:

IOReadableWritable, Value, Serializable

public final class TeraValue
extends Object
implements Value

An integer number according to the rules of Jim Gray's sorting benchmark has a length of 100 bytes. The first 10 bytes represent the key for the sort process, the rest is the value. The final byte of a 100 byte integer is always the newline character.

This class is a wrapper for the value part of the integer number.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	VALUE_SIZE The size of the value in bytes.

Constructor Summary

Constructors

Constructor and Description
TeraValue() Default constructor required for serialization/deserialization.
TeraValue(byte[] srcBuf, int offset) Constructs a new value object.

Method Summary

Methods

Modifier and Type	Method and Description
void	copyToBuffer(byte[] buf) Copies the value to the given byte buffer.
void	read(DataInput in)
void	setValue(byte[] data, int offset) Sets the value of this value object.
String	toString()
void	write(DataOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

VALUE_SIZE

public static final int VALUE_SIZE

The size of the value in bytes.

See Also:

Constant Field Values

Constructor Detail

TeraValue

public TeraValue(byte[] srcBuf,
         int offset)

Constructs a new value object. The value points to the subsequence in the given array, i.e. it is sharing the byte array.

Parameters:

srcBuf - The source buffer to read the value from.

offset - The offset in the byte array where the value subsequence starts.

TeraValue

public TeraValue()

Default constructor required for serialization/deserialization.

Method Detail

setValue

public void setValue(byte[] data,
            int offset)

Sets the value of this value object. This value will point to the subsequence in the given array, i.e. it is sharing the byte array.

Parameters:

data - The source buffer to read the value from.

offset - The offset in the byte array where the value subsequence starts.

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface IOReadableWritable

Throws:

IOException

read

public void read(DataInput in)
          throws IOException

Specified by:

read in interface IOReadableWritable

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

copyToBuffer

public void copyToBuffer(byte[] buf)

Copies the value to the given byte buffer.

Parameters:

buf - the buffer to copy the value to