private void fireTriggersForObject(DomainObjectData xobj, XTriggerFireTimes fireTime, IXExecutionContext context)
{
if (m_triggersForObjects.Length > 0)
{
foreach (XTriggerDescription trigger in m_triggersForObjects)
{
if (isTriggerMatchForObject(trigger, xobj, fireTime))
{
trigger.ExecuteTrigger(xobj.Context, xobj, context);
}
}
}
if (m_triggersForGroups.Length > 0)
{
ArrayList aObjectTypes = new ArrayList();
foreach (XTriggerDescription trigger in m_triggersForGroups)
{
if (trigger.ObjectType == xobj.ObjectType && aObjectTypes.IndexOf(xobj.ObjectType) == -1)
{
aObjectTypes.Add(xobj.ObjectType);
trigger.ExecuteTrigger(xobj.Context, xobj, context);
}
}
}
}
public XTriggerDefinitionAttribute(XTriggerActions action, XTriggerFireTimes when, XTriggerFireTypes fireType, string sObjectType)
{
m_action = action;
m_when = when;
m_fireType = fireType;
m_sObjectType = sObjectType;
}
public XTriggerArgs(XTriggerActions action, XTriggerFireTimes fireTimes, XTriggerFireTypes eventType, DomainObjectDataSet dataSet, DomainObjectData xobj)
{
m_action = action;
m_fireTime = fireTimes;
m_fireType = eventType;
m_dataSet = dataSet;
m_xobj = xobj;
}
public XTriggerDescription(XTriggerActions action, XTriggerFireTimes fireTimes, XTriggerFireTypes eventType, string sObjectType, XDotNetClassDescription factory)
{
m_action = action;
m_fireTime = fireTimes;
m_fireType = eventType;
m_sObjectType = sObjectType;
m_factory = factory;
if (!m_factory.Metaclass.IsSubclassOf(typeof(XTrigger)))
{
throw new ArgumentException(
String.Format(
"Класс {0} не является наследником XTrigger и не может быть использован в качестве триггера",
factory.Metaclass.Name
)
);
}
Type type = factory.Metaclass;
object[] attrs = type.GetCustomAttributes(typeof(XTriggerDefinitionAttribute), false);
if (attrs.Length > 0)
{
XTriggerDefinitionAttribute attr = (XTriggerDefinitionAttribute)attrs[0];
if (m_action == XTriggerActions.Unspecified)
{
m_action = attr.Action;
}
if (m_fireTime == XTriggerFireTimes.Unspecified)
{
m_fireTime = attr.When;
}
if (m_fireType == XTriggerFireTypes.Unspecified)
{
m_fireType = attr.FireType;
}
if (m_sObjectType == null || m_sObjectType.Length == 0)
{
m_sObjectType = attr.ObjectType;
}
}
if (m_action == XTriggerActions.Unspecified)
{
throw new ApplicationException("Не полностью специфицированное описание триггера " + type.Name + ": не задано действие (XTriggerActions)");
}
if (m_fireTime == XTriggerFireTimes.Unspecified)
{
throw new ApplicationException("Не полностью специфицированное описание триггера " + type.Name + ": не задано время срабатывания (XTriggerFireTimes)");
}
if (m_fireType == XTriggerFireTypes.Unspecified)
{
throw new ApplicationException("Не полностью специфицированное описание триггера " + type.Name + ": не задан тип срабатывания (XTriggerFireTypes)");
}
if ((m_sObjectType == null || m_sObjectType.Length == 0) && m_fireType != XTriggerFireTypes.ForWholeDataSet)
{
throw new ApplicationException("Не полностью специфицированное описание триггера " + type.Name + ": не задано наименование типа объекта");
}
}
public XTriggerConfiguration(string sAction, string sWhen, string sFireType, string sObjectType, string sClassName)
{
try
{
if (sAction == null || sAction.Length == 0)
{
Action = XTriggerActions.Unspecified;
}
else
{
Action = (XTriggerActions)Enum.Parse(typeof(XTriggerActions), sAction);
}
}
catch
{
throw new ArgumentException("Некорректное значение перечисления XTriggerActions: " + sAction);
}
try
{
if (sWhen == null || sWhen.Length == 0)
{
FireTime = XTriggerFireTimes.Unspecified;
}
else
{
FireTime = (XTriggerFireTimes)Enum.Parse(typeof(XTriggerFireTimes), sWhen);
}
}
catch
{
throw new ArgumentException("Некорректное значение перечисления XTriggerFireTimes: " + sWhen);
}
try
{
if (sFireType == null || sFireType.Length == 0)
{
FireType = XTriggerFireTypes.Unspecified;
}
else
{
FireType = (XTriggerFireTypes)Enum.Parse(typeof(XTriggerFireTypes), sFireType);
}
}
catch
{
throw new ArgumentException("Некорректное значение перечисления XTriggerFireTypes:" + sFireType);
}
if (sClassName == null || sClassName.Length == 0)
{
throw new ArgumentException("не задано наименование класса триггера");
}
ClassName = sClassName;
ObjectType = sObjectType;
}
public void FireTriggers(DomainObjectDataSet dataSet, XTriggerFireTimes fireTime, IXExecutionContext context)
{
if (m_triggersForObjects.Length == 0 && m_triggersForGroups.Length == 0 && m_triggersForWholeDataSet.Length == 0)
{
return;
}
if (m_triggersForObjects.Length + m_triggersForGroups.Length > 0)
{
IEnumerator enumerator = dataSet.GetModifiedObjectsEnumerator(false);
while (enumerator.MoveNext())
{
DomainObjectData xobj = (DomainObjectData)enumerator.Current;
fireTriggersForObject(xobj, fireTime, context);
}
}
if (m_triggersForWholeDataSet.Length > 0)
{
foreach (XTriggerDescription trigger in m_triggersForWholeDataSet)
{
trigger.ExecuteTrigger(dataSet, null, context);
}
}
}
private bool isTriggerMatchForObject(XTriggerDescription trigger, DomainObjectData xobj, XTriggerFireTimes fireTime)
{
if ((trigger.ObjectType == "*" || trigger.ObjectType == xobj.ObjectType) && trigger.FireTime == fireTime)
{
if (xobj.IsNew && (trigger.Action & XTriggerActions.Insert) > 0)
{
return(true);
}
else if (xobj.ToDelete && (trigger.Action & XTriggerActions.Delete) > 0)
{
return(true);
}
else if (!xobj.ToDelete && !xobj.IsNew && (trigger.Action & XTriggerActions.Update) > 0)
{
return(true);
}
}
return(false);
}
