js.transaction.hibernate

Class TransactionImpl

java.lang.Object

js.transaction.hibernate.TransactionImpl

All Implemented Interfaces:

js.transaction.Transaction

final class TransactionImpl
extends Object
implements js.transaction.Transaction

Transaction implementation for Hibernate session.

Version:

draft

Author:

Iulian Rotaru

Field Summary

Fields

Modifier and Type	Field and Description
private HibernateAdapter	adapter Hibernate session factory adapter.
private boolean	closed Flag indicating that transaction was closes and is not longer legal to operate on it.
private int	nestingLevel Nesting level count used to allow for nesting transactions.
private boolean	readOnly A read only transaction does not explicitly begin or commit/rollback but rely on database (driver).
private org.hibernate.Session	session Hibernate session.
private org.hibernate.Transaction	transaction Hibernate transaction.
private boolean	unused Flag to detect if transaction working unit is actually using transactional session.

Constructor Summary

Constructors

Constructor and Description
TransactionImpl(HibernateAdapter adapter, int transactionTimeout, boolean readOnly) Create transaction instance.

Method Summary

Modifier and Type	Method and Description
boolean	close()
void	commit()
protected void	finalize()
<T> T	getSession()
void	incrementTransactionNestingLevel() Increment transaction nesting level.
void	rollback()
boolean	unused()

Methods inherited from class java.lang.Object

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

Field Detail

adapter

private final HibernateAdapter adapter

Hibernate session factory adapter.

session

private final org.hibernate.Session session

Hibernate session.

transaction

private org.hibernate.Transaction transaction

Hibernate transaction.

nestingLevel

private int nestingLevel

Nesting level count used to allow for nesting transactions. HibernateAdapter.createTransaction(boolean) increments this counter if a transaction is already present on current thread but avoid creating a new one. On close() decrement nesting level and perform the actual close only if nesting level is 0.

readOnly

private final boolean readOnly

A read only transaction does not explicitly begin or commit/rollback but rely on database (driver).

unused

private boolean unused

Flag to detect if transaction working unit is actually using transactional session.

closed

private boolean closed

Flag indicating that transaction was closes and is not longer legal to operate on it.

Constructor Detail

TransactionImpl

public TransactionImpl(HibernateAdapter adapter,
                       int transactionTimeout,
                       boolean readOnly)

Create transaction instance.

Parameters:

adapter - Hibernate adapter,

transactionTimeout - transaction timeout, seconds,

readOnly - flag true for read-only transactions.

Method Detail

commit

public void commit()

Specified by:

commit in interface js.transaction.Transaction

rollback

public void rollback()

Specified by:

rollback in interface js.transaction.Transaction

close

public boolean close()

Specified by:

close in interface js.transaction.Transaction

unused

public boolean unused()

Specified by:

unused in interface js.transaction.Transaction

getSession

public <T> T getSession()

Specified by:

getSession in interface js.transaction.Transaction

incrementTransactionNestingLevel

public void incrementTransactionNestingLevel()

Increment transaction nesting level. Invoked from HibernateAdapter.createTransaction(boolean).

See Also:

nestingLevel

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable