com.pivotal.gemfirexd.hadoop.mapreduce

Class Key

java.lang.Object

com.pivotal.gemfirexd.hadoop.mapreduce.Key

All Implemented Interfaces:

Comparable<Key>, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable<Key>

Direct Known Subclasses:

Key

public class Key
extends Object
implements org.apache.hadoop.io.WritableComparable<Key>

A hadoop serializable representation of a changed row's primary key. The key object is created by input format for internal use and is provided to user as a reference to the event. It cannot be and should not be used for updating data in database.

Constructor Summary

Constructors

Constructor and Description
Key()

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(Key k)
byte[]	getKey()
void	readFields(DataInput in)
void	setKey(byte[] k)
void	write(DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

Key

public Key()

Method Detail

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

compareTo

public final int compareTo(Key k)

Specified by:

compareTo in interface Comparable<Key>

setKey

public final void setKey(byte[] k)

getKey

public final byte[] getKey()