/// <summary>
/// Called by the QuartzScheduler before the <see cref="IJobStore" /> is
/// used, in order to give it a chance to Initialize.
/// </summary>
public virtual void Initialize(ITypeLoadHelper loadHelper, ISchedulerSignaler s)
{
if (dataSource == null)
{
throw new SchedulerConfigException("DataSource name not set.");
}
typeLoadHelper = loadHelper;
schedSignaler = s;
// If the user hasn't specified an explicit lock handler, then
// choose one based on CMT/Clustered/UseDBLocks.
if (LockHandler == null)
{
// If the user hasn't specified an explicit lock handler,
// then we *must* use DB locks with clustering
if (Clustered)
{
UseDBLocks = true;
}
if (UseDBLocks)
{
if (Delegate is SqlServerDelegate)
{
if (SelectWithLockSQL == null)
{
const string DefaultLockSql = "SELECT * FROM {0}LOCKS WITH (UPDLOCK,ROWLOCK) WHERE " + ColumnSchedulerName + " = {1} AND LOCK_NAME = @lockName";
Log.InfoFormat("Detected usage of SqlServerDelegate - defaulting 'selectWithLockSQL' to '" + DefaultLockSql + "'.", TablePrefix, "'" + InstanceName + "'");
SelectWithLockSQL = DefaultLockSql;
}
}
Log.Info("Using db table-based data access locking (synchronization).");
LockHandler = new StdRowLockSemaphore(TablePrefix, InstanceName, SelectWithLockSQL, DbProvider);
}
else
{
Log.Info("Using thread monitor-based data access locking (synchronization).");
LockHandler = new SimpleSemaphore();
}
}
else
{
// be ready to give a friendly warning if SQL Server is used and sub-optimal locking
if (LockHandler is UpdateLockRowSemaphore && Delegate is SqlServerDelegate)
{
Log.Warn("Detected usage of SqlServerDelegate and UpdateLockRowSemaphore, removing 'quartz.jobStore.lockHandler.type' would allow more efficient SQL Server specific (UPDLOCK,ROWLOCK) row access");
}
// be ready to give a friendly warning if SQL Server provider and wrong delegate
if (DbProvider != null && DbProvider.Metadata.ConnectionType == typeof(SqlConnection) && !(Delegate is SqlServerDelegate))
{
Log.Warn("Detected usage of SQL Server provider without SqlServerDelegate, SqlServerDelegate would provide better performance");
}
}
}
/// <summary>
/// Called by the QuartzScheduler before the <see cref="IJobStore" /> is
/// used, in order to give it a chance to Initialize.
/// </summary>
public virtual void Initialize(ITypeLoadHelper loadHelper, ISchedulerSignaler s)
{
if (dataSource == null)
{
throw new SchedulerConfigException("DataSource name not set.");
}
typeLoadHelper = loadHelper;
schedSignaler = s;
// If the user hasn't specified an explicit lock handler, then
// choose one based on CMT/Clustered/UseDBLocks.
if (LockHandler == null)
{
// If the user hasn't specified an explicit lock handler,
// then we *must* use DB locks with clustering
if (Clustered)
{
UseDBLocks = true;
}
if (UseDBLocks)
{
if (Delegate is SqlServerDelegate)
{
if (SelectWithLockSQL == null)
{
const string DefaultLockSql = "SELECT * FROM {0}LOCKS WITH (UPDLOCK,ROWLOCK) WHERE " + ColumnSchedulerName + " = {1} AND LOCK_NAME = @lockName";
Log.Info("Detected usage of MSSQLDelegate - defaulting 'selectWithLockSQL' to '" + DefaultLockSql + "'.");
SelectWithLockSQL = DefaultLockSql;
}
}
Log.Info("Using db table-based data access locking (synchronization).");
LockHandler = new StdRowLockSemaphore(TablePrefix, InstanceName, SelectWithLockSQL, DbProvider);
}
else
{
Log.Info("Using thread monitor-based data access locking (synchronization).");
LockHandler = new SimpleSemaphore();
}
}
}
/// <summary>
/// Called by the QuartzScheduler before the <see cref="IJobStore" /> is
/// used, in order to give it a chance to Initialize.
/// </summary>
public virtual void Initialize(ITypeLoadHelper loadHelper, ISchedulerSignaler s)
{
if (dataSource == null)
{
throw new SchedulerConfigException("DataSource name not set.");
}
typeLoadHelper = loadHelper;
signaler = s;
// If the user hasn't specified an explicit lock handler, then
// choose one based on CMT/Clustered/UseDBLocks.
if (LockHandler == null)
{
// If the user hasn't specified an explicit lock handler,
// then we *must* use DB locks with clustering
if (Clustered)
{
UseDBLocks = true;
}
if (UseDBLocks)
{
Log.Info("Using db table-based data access locking (synchronization).");
LockHandler = new StdRowLockSemaphore(TablePrefix, SelectWithLockSQL, DbProvider);
}
else
{
Log.Info("Using thread monitor-based data access locking (synchronization).");
LockHandler = new SimpleSemaphore();
}
}
}
