Package org.linuxforhealth.fhir.persistence.helper

Class FHIRTransactionHelper

java.lang.Object

org.linuxforhealth.fhir.persistence.helper.FHIRTransactionHelper

public class FHIRTransactionHelper
extends java.lang.Object

This helper class is used to manage the transaction on the current thread.

Constructor Summary

Constructors

Constructor	Description
FHIRTransactionHelper(FHIRPersistenceTransaction txn)

Method Summary

Modifier and Type	Method	Description
void	begin()	If a transaction has not yet been started on this thread, then start one.
void	commit()	If we previously started a transaction on this thread using this helper instance, then commit it now.
void	end()	Same as commit, but is preferred for readability because commit() will actually do a rollback if setRollbackOnly is called on the underlying transaction
boolean	hasBegun()	Find out if we're currently in a transaction
void	rollback()	If we previously started a transaction on this thread using this helper instance, then perform a rollback now; otherwise, set the transaction as 'rollback only' to prevent it from being committed later.
void	setRollbackOnly()	Mark the current transaction for rollback.

Methods inherited from class java.lang.Object

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

Constructor Detail

FHIRTransactionHelper

public FHIRTransactionHelper(FHIRPersistenceTransaction txn)

Method Detail

begin

public void begin()
           throws FHIRPersistenceException

If a transaction has not yet been started on this thread, then start one.

Throws:

FHIRPersistenceException

commit

public void commit()
            throws FHIRPersistenceException

If we previously started a transaction on this thread using this helper instance, then commit it now.

Throws:

FHIRPersistenceException

end

public void end()
         throws FHIRPersistenceException

Same as commit, but is preferred for readability because commit() will actually do a rollback if setRollbackOnly is called on the underlying transaction

Throws:

FHIRPersistenceException

rollback

public void rollback()
              throws FHIRPersistenceException

If we previously started a transaction on this thread using this helper instance, then perform a rollback now; otherwise, set the transaction as 'rollback only' to prevent it from being committed later.

Throws:

FHIRPersistenceException

setRollbackOnly

public void setRollbackOnly()
                     throws FHIRPersistenceException

Mark the current transaction for rollback.

Throws:

FHIRPersistenceException

hasBegun

public boolean hasBegun()
                 throws FHIRPersistenceException

Find out if we're currently in a transaction

Returns:

Throws:

FHIRPersistenceException