Dao.SessionTracker

java.lang.Object

tenapull.data.persistence.Dao.SessionTracker

Enclosing class:: Dao<POJO extends DbPojo>

protected static class Dao.SessionTracker
extends java.lang.Object

Session tracker used to track the daos and invocations that are using an open session

Field Summary

Fields
Modifier and Type	Field	Description
`protected org.hibernate.Session`	`session`	The Session being tracked
`protected java.util.List<Dao>`	`sharers`	All daos which are sharing this session.
`protected java.lang.Thread`	`thread`	The Thread on which this session is being used

Method Summary

Modifier and Type	Method	Description
`protected void`	`done(Dao dao)`	The way for a dao to indicate that the current method is finished with its used of this session, so can be removed from the sharers list.
`protected void`	`failed(java.lang.Throwable e, Dao dao)`	Method to invoke when there is a DB failure.
`protected org.hibernate.Transaction`	`getTransaction()`	Gets the transaction for the current session, or creates it if one does not yet exist

Methods inherited from class java.lang.Object

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

Field Details
- session
  
  protected final org.hibernate.Session session
  
  The Session being tracked
- thread
  
  protected final java.lang.Thread thread
  
  The Thread on which this session is being used
- sharers
  
  protected java.util.List<Dao> sharers
  
  All daos which are sharing this session. The same dao may appear multiple times if its methods using the session are being invoked sequentially through the call stack, before it closes its role in the session. The session is not actually closed and the transaction committed until this list has been emptied
Method Details
- done
  
  protected void done(Dao dao)
  
  The way for a dao to indicate that the current method is finished with its used of this session, so can be removed from the sharers list. Once the sharers list reaches zero, the session will be closed
  
  Parameters:
  
  dao - the dao
- getTransaction
  
  protected org.hibernate.Transaction getTransaction()
  
  Gets the transaction for the current session, or creates it if one does not yet exist
  
  Returns:
  
  the transaction
- failed
  
  protected void failed(java.lang.Throwable e, Dao dao) throws DbException
  
  Method to invoke when there is a DB failure. This will rollback the transaction, log the exception, wrap the exception with a DbException, and then throw it back up the call stack.
  
  Parameters:
  
  e - the e
  
  dao - the dao
  
  Throws:
  
  DbException - the db exception