java.lang.Object

com.isomorphic.jpa.EMFProviderLMT

com.isomorphic.jpa.EMFProviderNoTransactions

All Implemented Interfaces:: EMFProviderInterface

public class EMFProviderNoTransactions extends EMFProviderLMT

EMF provider for Google Application Engine mode without transactions usage.

Name of persistence unit can be read from jpa.persistenceUnitName property. EntityManagerFactory is created in static initialization block and used to create EntityManager objects.

Field Summary

Fields inherited from class com.isomorphic.jpa.EMFProviderLMT
emf

Fields inherited from interface com.isomorphic.jpa.EMFProviderInterface
ENTITY_MANAGER, ENTITY_MANAGER_FACTORY, JPA_ENTITY_MANAGER, JPA_ENTITY_MANAGER_FACTORY, JPA_PERSISTENCE_UNIT_NAME, JPA_TRANSACTION, PERSISTENCE_UNIT_NAME, TRANSACTION
Constructor Summary

Constructors

Constructor

Description

EMFProviderNoTransactions()

Creates new EMF provider.

EMFProviderNoTransactions(String persistenceUnitName)

Creates new EMF provider with specified persistence unit name.

EMFProviderNoTransactions(Properties config)

Creates new EMF provider.
Method Summary

Modifier and Type

Method

Description

void

commitTransaction(Object tx)

Does nothing - transactions are not used.

Object

getTransaction(jakarta.persistence.EntityManager em)

Transactions are not used - always returns null.

void

rollbackTransaction(Object tx)

Does nothing - transactions are not used.

Methods inherited from class com.isomorphic.jpa.EMFProviderLMT
get, getEntityManager, returnEntityManager

Constructor Details
- EMFProviderNoTransactions
  
  public EMFProviderNoTransactions()
  
  Creates new EMF provider. Name of persistence unit is read from jpa.persistenceUnitName property.
- EMFProviderNoTransactions
  
  public EMFProviderNoTransactions(Properties config)
  
  Creates new EMF provider. Name of persistence unit is read from provided persistenceUnitName property.
  
  Parameters:
  
  config - Properties for provider configuration.
- EMFProviderNoTransactions
  
  public EMFProviderNoTransactions(String persistenceUnitName)
  
  Creates new EMF provider with specified persistence unit name.
  
  Parameters:
  
  persistenceUnitName - String name of persistence unit.
Method Details
- getTransaction
  
  public Object getTransaction(jakarta.persistence.EntityManager em) throws Exception
  
  Transactions are not used - always returns null.
  
  Specified by:
  
  getTransaction in interface EMFProviderInterface
  
  Overrides:
  
  getTransaction in class EMFProviderLMT
  
  Parameters:
  
  em - EntityManager needed if joining to existing transaction or starting transaction locally.
  
  Returns:
  
  Object always returns null.
  
  Throws:
  
  jakarta.persistence.PersistenceException - if unable to acquire or open transaction.
  
  Exception - if unable to acquire or open transaction.
- commitTransaction
  
  public void commitTransaction(Object tx) throws Exception
  
  Does nothing - transactions are not used.
  
  Specified by:
  
  commitTransaction in interface EMFProviderInterface
  
  Overrides:
  
  commitTransaction in class EMFProviderLMT
  
  Parameters:
  
  tx - Object transaction to be commited.
  
  Throws:
  
  Exception - occured while committing transaction.
- rollbackTransaction
  
  public void rollbackTransaction(Object tx)
  
  Does nothing - transactions are not used.
  
  Specified by:
  
  rollbackTransaction in interface EMFProviderInterface
  
  Overrides:
  
  rollbackTransaction in class EMFProviderLMT
  
  Parameters:
  
  tx - Object transaction to be rolled back.

Class EMFProviderNoTransactions

Field Summary

Fields inherited from class com.isomorphic.jpa.EMFProviderLMT

Fields inherited from interface com.isomorphic.jpa.EMFProviderInterface

Constructor Summary

Method Summary

Methods inherited from class com.isomorphic.jpa.EMFProviderLMT

Constructor Details

EMFProviderNoTransactions

EMFProviderNoTransactions

EMFProviderNoTransactions

Method Details

getTransaction

commitTransaction

rollbackTransaction