SQLDependency thread
- by user171523
i am in the process implementing SQLdepenency i would like to know in case of Dependency Handler exeuctues will it spun a different thred from main Process ? What will happen when the event handler triggers? Do i need to worry about any multithreds issues?
public void CreateSqlDependency()
{
try
{
using (SqlConnection connection = (SqlConnection)DBFactory.GetDBFactoryConnection(Constants.SQL_PROVIDER_NAME))
{
SqlCommand command = (SqlCommand)DBFactory.GetCommand(Constants.SQL_PROVIDER_NAME);
command.CommandText = watchQuery;
command.CommandType = CommandType.Text;
SqlDependency dependency = new SqlDependency(command);
//Create the callback object
dependency.OnChange += new OnChangeEventHandler(this.QueueChangeNotificationHandler);
SqlDependency.Start(connectionString);
DataTable dataTable = DBFactory.ExecuteSPReDT(command);
}
}
catch (SqlException sqlExp)
{
throw sqlExp;
}
catch (Exception ex)
{
throw ex;
}
}
public void QueueChangeNotificationHandler(object caller, SqlNotificationEventArgs e)
{
if(e.Info == SqlNotificationInfo.Insert)
Fire();
}
