org.apache.hadoop.hbase.regionserver

Class RegionMergeTransactionFactory

java.lang.Object

org.apache.hadoop.hbase.regionserver.RegionMergeTransactionFactory

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
 @InterfaceStability.Evolving
public class RegionMergeTransactionFactory
extends Object

A factory for creating RegionMergeTransactions, which execute region split as a "transaction". See RegionMergeTransactionImpl

Field Summary

Fields

Modifier and Type	Field and Description
static String	MERGE_TRANSACTION_IMPL_KEY

Constructor Summary

Constructors

Constructor and Description
RegionMergeTransactionFactory(Configuration conf)

Method Summary

Modifier and Type	Method and Description
RegionMergeTransactionImpl	create(Region a, Region b, boolean forcible) Create a merge transaction
Configuration	getConf()
void	setConf(Configuration conf)

Methods inherited from class java.lang.Object

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

Field Detail

MERGE_TRANSACTION_IMPL_KEY

public static final String MERGE_TRANSACTION_IMPL_KEY

See Also:

Constant Field Values

Constructor Detail

RegionMergeTransactionFactory

public RegionMergeTransactionFactory(Configuration conf)

Method Detail

getConf

public Configuration getConf()

setConf

public void setConf(Configuration conf)

create

public RegionMergeTransactionImpl create(Region a,
                                         Region b,
                                         boolean forcible)

Create a merge transaction

Parameters:

a - region a to merge

b - region b to merge

forcible - if false, we will only merge adjacent regions

Returns:

transaction instance