au.com.cybersearch2.classyjpa.transaction

Class EntityTransactionImpl

java.lang.Object

au.com.cybersearch2.classyjpa.transaction.EntityTransactionImpl

All Implemented Interfaces:

javax.persistence.EntityTransaction

public class EntityTransactionImpl
extends Object
implements javax.persistence.EntityTransaction

EntityTransactionImpl Implements javax.persistence.EntityTransaction. Database connection management is delegated to TransactionState class.

Author:

Andrew Bowley 03/05/2014 Code originates from com.j256.ormlite.misc.TransactionManager by graywatson Note on OrmLite autocommit Sqlite does not support auto-commit. The various JDBC drivers seem to implement it with the use of a transaction. Therefore there will be no attempt to save and restore auto-commit state as it just interferes with the transaction in progress.

Field Summary

Fields

Modifier and Type	Field and Description
static String	TAG

Constructor Summary

Constructors

Constructor and Description
EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource) Construct a ClassyEntityTransaction instance
EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource, TransactionCallable onPreCommit) Construct a ClassyEntityTransaction instance
EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource, TransactionCallable onPreCommit, Callable<Boolean> onPostCommit) Construct a ClassyEntityTransaction instance

Method Summary

Methods

Modifier and Type	Method and Description
void	begin() Start the resource transaction.
void	commit() Commit the current transaction, writing any unflushed changes to the database.
boolean	getRollbackOnly() Determine whether the current transaction has been marked for rollback.
boolean	isActive() Indicate whether a transaction is in progress.
void	rollback() Roll back the current transaction
void	setRollbackOnly() Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Methods inherited from class java.lang.Object

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

Field Detail

TAG

public static final String TAG

See Also:

Constant Field Values

Constructor Detail

EntityTransactionImpl

public EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource)

Construct a ClassyEntityTransaction instance

Parameters:

connectionSource - ConnectionSource to be used for database operations

EntityTransactionImpl

public EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource,
                     TransactionCallable onPreCommit)

Construct a ClassyEntityTransaction instance

Parameters:

connectionSource - ConnectionSource to be used for database operations

onPreCommit - Callable of return type Boolean to invoke on commit() called

EntityTransactionImpl

public EntityTransactionImpl(com.j256.ormlite.support.ConnectionSource connectionSource,
                     TransactionCallable onPreCommit,
                     Callable<Boolean> onPostCommit)

Construct a ClassyEntityTransaction instance

Parameters:

connectionSource - ConnectionSource to be used for database operations

onPreCommit - Callable of return type Boolean to invoke on commit() called

onPostCommit - Callable of return type Boolean to invoke after commit() called and transaction committed. OnPostCommit should just do clean up, auditing and other non-essential operations. NOTE: The post-commit call will not occur if onPreCommit is called and fails. The onPreCommit parameter may be null.

Method Detail

begin

public void begin()

Start the resource transaction.

Specified by:

begin in interface javax.persistence.EntityTransaction

Throws:

IllegalStateException - if isActive() is true.

commit

public void commit()

Commit the current transaction, writing any unflushed changes to the database.

Specified by:

commit in interface javax.persistence.EntityTransaction

Throws:

IllegalStateException - if isActive() is false.

RollbackException - if the commit fails.

getRollbackOnly

public boolean getRollbackOnly()

Determine whether the current transaction has been marked for rollback.

Specified by:

getRollbackOnly in interface javax.persistence.EntityTransaction

Throws:

IllegalStateException - if isActive() is false.

isActive

public boolean isActive()

Indicate whether a transaction is in progress.

Specified by:

isActive in interface javax.persistence.EntityTransaction

Throws:

javax.persistence.PersistenceException - if an unexpected error condition is encountered.

rollback

public void rollback()

Roll back the current transaction

Specified by:

rollback in interface javax.persistence.EntityTransaction

Throws:

IllegalStateException - if isActive() is false.

javax.persistence.PersistenceException - if an unexpected error condition is encountered.

setRollbackOnly

public void setRollbackOnly()

Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Specified by:

setRollbackOnly in interface javax.persistence.EntityTransaction

Throws:

IllegalStateException - if isActive() is false.