org.apache.hadoop.hive.metastore.txn.jdbc

Class TransactionContext

java.lang.Object

org.apache.hadoop.hive.metastore.txn.jdbc.TransactionContext

All Implemented Interfaces:

Flushable, AutoCloseable, org.springframework.transaction.SavepointManager, org.springframework.transaction.TransactionExecution, org.springframework.transaction.TransactionStatus

public class TransactionContext
extends Object
implements org.springframework.transaction.TransactionStatus, AutoCloseable

Wraps the TransactionStatus object into an AutoCloseable object to allow using it in try-with-resources block. If the TransactionExecution.isCompleted() is false upon exiting the try block, the transaction will rolled back, otherwise nothing happens. In other words: This wrapper automatically rolls back uncommitted transactions, but the commit needs to be done manually using TransactionContextManager.commit(TransactionContext) method.

Method Summary

Modifier and Type	Method and Description
void	close()
Object	createSavepoint()
void	flush()
boolean	hasSavepoint()
boolean	isCompleted()
boolean	isNewTransaction()
boolean	isRollbackOnly()
void	releaseSavepoint(Object savepoint)
void	rollbackToSavepoint(Object savepoint)
void	setRollbackOnly()

Methods inherited from class java.lang.Object

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

Method Detail

hasSavepoint

public boolean hasSavepoint()

Specified by:

hasSavepoint in interface org.springframework.transaction.TransactionStatus

flush

public void flush()

Specified by:

flush in interface Flushable

Specified by:

flush in interface org.springframework.transaction.TransactionStatus

createSavepoint

@NonNull
public Object createSavepoint()
                                throws org.springframework.transaction.TransactionException

Specified by:

createSavepoint in interface org.springframework.transaction.SavepointManager

Throws:

org.springframework.transaction.TransactionException

rollbackToSavepoint

public void rollbackToSavepoint(@NonNull
                                Object savepoint)
                         throws org.springframework.transaction.TransactionException

Specified by:

rollbackToSavepoint in interface org.springframework.transaction.SavepointManager

Throws:

org.springframework.transaction.TransactionException

releaseSavepoint

public void releaseSavepoint(@NonNull
                             Object savepoint)
                      throws org.springframework.transaction.TransactionException

Specified by:

releaseSavepoint in interface org.springframework.transaction.SavepointManager

Throws:

org.springframework.transaction.TransactionException

isNewTransaction

public boolean isNewTransaction()

Specified by:

isNewTransaction in interface org.springframework.transaction.TransactionExecution

setRollbackOnly

public void setRollbackOnly()

Specified by:

setRollbackOnly in interface org.springframework.transaction.TransactionExecution

isRollbackOnly

public boolean isRollbackOnly()

Specified by:

isRollbackOnly in interface org.springframework.transaction.TransactionExecution

isCompleted

public boolean isCompleted()

Specified by:

isCompleted in interface org.springframework.transaction.TransactionExecution

close

public void close()

Specified by:

close in interface AutoCloseable

See Also:

class level javadoc.