protected override void FireTrigger(TableEvent tableEvent, IBlock context)
{
var e = new TriggerEvent(TriggerType.Callback, TriggerInfo.TriggerName, tableEvent.Table.TableInfo.TableName, tableEvent.EventTime, tableEvent.EventType,
tableEvent.OldRowId, tableEvent.NewRow);
context.Context.RegisterEvent(e);
}
public void OnTriggerEvent(TriggerEvent trigger)
{
try {
if (listener != null)
listener(trigger);
} catch (Exception ex) {
// TODO: form a source...
systemContext.EventRegistry.Error(null, ex);
}
}
protected override ISystemContext CreateSystemContext()
{
var context = base.CreateSystemContext();
context.ListenTriggers(trigger => {
if ((trigger.TriggerEventType & TriggerEventType.After) != 0) {
afterEvent = trigger;
} else if ((trigger.TriggerEventType & TriggerEventType.Before) != 0) {
beforeEvent = trigger;
}
});
return context;
}
public static void FireTrigger(this IQueryContext context, TableEventContext tableEvent)
{
var eventSource = tableEvent.Table.FullName;
var eventType = tableEvent.EventType;
var triggers = context.Session.FindTriggers(eventSource, eventType);
foreach (var trigger in triggers) {
try {
trigger.Fire(tableEvent);
var oldRowId = tableEvent.OldRowId;
var newRow = tableEvent.NewRow;
var triggerEvent = new TriggerEvent(trigger.TriggerName, eventSource, eventType, oldRowId, newRow);
context.RegisterEvent(triggerEvent);
} catch (Exception) {
// TODO: throw a specialized exception
throw;
}
}
}
private void NotifyTriggerEvent(IQueryContext context, TableEventContext tableEvent)
{
var tableName = tableEvent.Table.FullName;
var eventType = tableEvent.EventType;
var triggerEvent = new TriggerEvent(context.Session, TriggerName, tableName, eventType, tableEvent.OldRowId,
tableEvent.NewRow);
context.RegisterEvent(triggerEvent);
}