I use the class below to access mysql. after a few queries, the application
pool of IIS 7.5 increases to around 1 GB of RAM. I checked that the dispose
method of the class is always executed. Why is this happening? And 'normal
connections mysql remain in 'sleep' ?
Thank you
JK
public class RepositoryBase: IDisposable
{
protected ISession _session = null;
protected ITransaction _transaction = null;
public Boolean extension_transaction = false;
public RepositoryBase(string connectionString)
{
_session =
NHibernateMultipleHelper.GetCurrentSession(connectionString);
_transaction = _session.BeginTransaction();
}
public RepositoryBase(ISession session)
{
_session = session;
}
#region Transaction and Session Management Methods
public void BeginTransaction()
{
_transaction = _session.BeginTransaction();
}
public void CommitTransaction()
{
// _transaction will be replaced with a new transaction
// by NHibernate, but we will close to keep a consistent state.
_transaction.Commit();
CloseTransaction();
}
public virtual object GetById(Type objType, object objId)
{
return _session.Get(objType, objId);
}
public void RollbackTransaction()
{
// _session must be closed and disposed after a transaction
// rollback to keep a consistent state.
_transaction.Rollback();
CloseTransaction();
CloseSession();
}
private void CloseTransaction()
{
_transaction.Dispose();
_transaction = null;
}
private void CloseSession()
{
_session.Clear();
_session.Close();
_session.Dispose();
_session = null;
}
#endregion
#region IRepository Members
public virtual IQuery getSQLQuerySession(ref IQuery query, string sql)
{
return _session.CreateSQLQuery(sql);
}
public virtual IQuery getQuerySession(ref IQuery query, string sql)
{
return _session.CreateQuery(sql);
}
public virtual IQuery setQuerySession(string sql)
{
return _session.CreateQuery(sql);
}
public virtual void Save(object obj)
{
_session.SaveOrUpdate(obj);
}
public virtual void Persist(object obj)
{
_session.Persist(obj);
}
public virtual void Delete(object obj)
{
_session.Delete(obj);
}
public virtual void Evict(object obj) {
_session.Evict(obj);
}
#endregion
#region IDisposable Members
public void Dispose()
{
if (_transaction != null)
{
// Commit transaction by default, unless user explicitly rolls
it back.
// To rollback transaction by default, unless user explicitly
commits,
// comment out the line below.
CommitTransaction();
}
if (_session != null)
{
_session.Flush(); // commit session transactions
CloseSession();
}
}
#endregion
}
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