org.apache.hadoop.hbase

Class RegionTransition

java.lang.Object

org.apache.hadoop.hbase.RegionTransition

@InterfaceAudience.Private
public class RegionTransition
extends Object

Current state of a region in transition. Holds state of a region as it moves through the steps that take it from offline to open, etc. Used by regionserver, master, and zk packages. Encapsulates protobuf serialization/deserialization so we don't leak generated pb outside this class. Create an instance using createRegionTransition(EventType, byte[], ServerName).

Immutable

Method Summary

Methods

Modifier and Type	Method and Description
static RegionTransition	createRegionTransition(EventType type, byte[] regionName, ServerName sn)
static RegionTransition	createRegionTransition(EventType type, byte[] regionName, ServerName sn, byte[] payload)
long	getCreateTime()
EventType	getEventType()
byte[]	getPayload()
byte[]	getRegionName()
ServerName	getServerName()
static RegionTransition	parseFrom(byte[] data)
byte[]	toByteArray()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getEventType

public EventType getEventType()

getServerName

public ServerName getServerName()

getCreateTime

public long getCreateTime()

getRegionName

public byte[] getRegionName()

Returns:

Full region name

getPayload

public byte[] getPayload()

toString

public String toString()

Overrides:

toString in class Object

createRegionTransition

public static RegionTransition createRegionTransition(EventType type,
                                      byte[] regionName,
                                      ServerName sn)

Parameters:

type -

regionName -

sn -

Returns:

a serialized pb RegionTransition

createRegionTransition

public static RegionTransition createRegionTransition(EventType type,
                                      byte[] regionName,
                                      ServerName sn,
                                      byte[] payload)

Parameters:

type -

regionName -

sn -

payload - May be null

Returns:

a serialized pb RegionTransition

parseFrom

public static RegionTransition parseFrom(byte[] data)
                                  throws DeserializationException

Parameters:

data - Serialized date to parse.

Returns:

A RegionTransition instance made of the passed data

Throws:

DeserializationException

See Also:

toByteArray()

toByteArray

public byte[] toByteArray()

Returns:

This instance serialized into a byte array

See Also:

parseFrom(byte[])