org.apache.hudi.client.transaction

Class TransactionManager

java.lang.Object

org.apache.hudi.client.transaction.TransactionManager

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DirectMarkerTransactionManager

public class TransactionManager
extends Object
implements Serializable

This class allows clients to start and end transactions. Anything done between a start and end transaction is guaranteed to be atomic.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Option<HoodieInstant>	currentTxnOwnerInstant
protected boolean	isLockRequired
protected LockManager	lockManager
protected static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Modifier	Constructor and Description
	TransactionManager(HoodieWriteConfig config, org.apache.hadoop.fs.FileSystem fs)
protected	TransactionManager(LockManager lockManager, boolean isLockRequired)

Method Summary

Modifier and Type	Method and Description
void	beginTransaction(Option<HoodieInstant> newTxnOwnerInstant, Option<HoodieInstant> lastCompletedTxnOwnerInstant)
void	close()
void	endTransaction(Option<HoodieInstant> currentTxnOwnerInstant)
Option<HoodieInstant>	getCurrentTransactionOwner()
Option<HoodieInstant>	getLastCompletedTransactionOwner()
LockManager	getLockManager()
boolean	isLockRequired()
protected boolean	reset(Option<HoodieInstant> callerInstant, Option<HoodieInstant> newTxnOwnerInstant, Option<HoodieInstant> lastCompletedTxnOwnerInstant)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

lockManager

protected final LockManager lockManager

isLockRequired

protected final boolean isLockRequired

currentTxnOwnerInstant

protected Option<HoodieInstant> currentTxnOwnerInstant

Constructor Detail

TransactionManager

public TransactionManager(HoodieWriteConfig config,
                          org.apache.hadoop.fs.FileSystem fs)

TransactionManager

protected TransactionManager(LockManager lockManager,
                             boolean isLockRequired)

Method Detail

beginTransaction

public void beginTransaction(Option<HoodieInstant> newTxnOwnerInstant,
                             Option<HoodieInstant> lastCompletedTxnOwnerInstant)

endTransaction

public void endTransaction(Option<HoodieInstant> currentTxnOwnerInstant)

reset

protected boolean reset(Option<HoodieInstant> callerInstant,
                        Option<HoodieInstant> newTxnOwnerInstant,
                        Option<HoodieInstant> lastCompletedTxnOwnerInstant)

close

public void close()

getLockManager

public LockManager getLockManager()

getLastCompletedTransactionOwner

public Option<HoodieInstant> getLastCompletedTransactionOwner()

getCurrentTransactionOwner

public Option<HoodieInstant> getCurrentTransactionOwner()

isLockRequired

public boolean isLockRequired()