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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.orm.jpa 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.springframework.orm.jpa.DefaultJpaDialect

All known Subclasses:   org.springframework.orm.jpa.vendor.OpenJpaDialect,  org.springframework.orm.jpa.vendor.HibernateJpaDialect,  org.springframework.orm.jpa.vendor.TopLinkJpaDialect,
DefaultJpaDialect
public class DefaultJpaDialect implements JpaDialect,Serializable(Code)
Default implementation of the JpaDialect interface. Used as default dialect by JpaAccessor and JpaTransactionManager .

Simply begins a standard JPA transaction in DefaultJpaDialect.beginTransaction and performs standard exception translation through EntityManagerFactoryUtils .
author:
   Juergen Hoeller
since:
   2.0
See Also:   JpaAccessor.setJpaDialect
See Also:   JpaTransactionManager.setJpaDialect





Method Summary
public  ObjectbeginTransaction(EntityManager entityManager, TransactionDefinition definition)
     This implementation invokes the standard JPA Transaction.begin method.
public  voidcleanupTransaction(Object transactionData)
     This implementation does nothing, since the default beginTransaction implementation does not require any cleanup.
public  EntityManagerFactoryPlusOperationsgetEntityManagerFactoryPlusOperations(EntityManagerFactory rawEntityManager)
    
public  EntityManagerPlusOperationsgetEntityManagerPlusOperations(EntityManager rawEntityManager)
    
public  ConnectionHandlegetJdbcConnection(EntityManager entityManager, boolean readOnly)
     This implementation always returns null, indicating that no JDBC Connection can be provided.
public  ObjectprepareTransaction(EntityManager entityManager, boolean readOnly, String name)
    
public  voidreleaseJdbcConnection(ConnectionHandle conHandle, EntityManager em)
     This implementation does nothing, assuming that the Connection will implicitly be closed with the EntityManager.
public  booleansupportsEntityManagerFactoryPlusOperations()
    
public  booleansupportsEntityManagerPlusOperations()
    
public  DataAccessExceptiontranslateExceptionIfPossible(RuntimeException ex)
     This implementation delegates to EntityManagerFactoryUtils.



Method Detail
beginTransaction
public Object beginTransaction(EntityManager entityManager, TransactionDefinition definition) throws PersistenceException, SQLException, TransactionException(Code)
This implementation invokes the standard JPA Transaction.begin method. Throws an InvalidIsolationLevelException if a non-default isolation level is set.

This implementation does not return any transaction data Object, since there is no state to be kept for a standard JPA transaction. Hence, subclasses do not have to care about the return value (null) of this implementation and are free to return their own transaction data Object.
See Also:   javax.persistence.EntityTransaction.begin
See Also:   org.springframework.transaction.InvalidIsolationLevelException
See Also:   DefaultJpaDialect.cleanupTransaction




cleanupTransaction
public void cleanupTransaction(Object transactionData)(Code)
This implementation does nothing, since the default beginTransaction implementation does not require any cleanup.
See Also:   DefaultJpaDialect.beginTransaction



getEntityManagerFactoryPlusOperations
public EntityManagerFactoryPlusOperations getEntityManagerFactoryPlusOperations(EntityManagerFactory rawEntityManager)(Code)



getEntityManagerPlusOperations
public EntityManagerPlusOperations getEntityManagerPlusOperations(EntityManager rawEntityManager)(Code)



getJdbcConnection
public ConnectionHandle getJdbcConnection(EntityManager entityManager, boolean readOnly) throws PersistenceException, SQLException(Code)
This implementation always returns null, indicating that no JDBC Connection can be provided.



prepareTransaction
public Object prepareTransaction(EntityManager entityManager, boolean readOnly, String name) throws PersistenceException(Code)



releaseJdbcConnection
public void releaseJdbcConnection(ConnectionHandle conHandle, EntityManager em) throws PersistenceException, SQLException(Code)
This implementation does nothing, assuming that the Connection will implicitly be closed with the EntityManager.

If the JPA implementation returns a Connection handle that it expects the application to close after use, the dialect implementation needs to invoke Connection.close() (or some other method with similar effect) here.
See Also:   java.sql.Connection.close




supportsEntityManagerFactoryPlusOperations
public boolean supportsEntityManagerFactoryPlusOperations()(Code)



supportsEntityManagerPlusOperations
public boolean supportsEntityManagerPlusOperations()(Code)



translateExceptionIfPossible
public DataAccessException translateExceptionIfPossible(RuntimeException ex)(Code)
This implementation delegates to EntityManagerFactoryUtils.
See Also:   EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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