public virtual void EnsurePropertyIsLoaded(object obj, IPropertyMap propertyMap)
{
IObjectManager om = this.Context.ObjectManager;
IPersistenceEngine pe = this.Context.PersistenceEngine;
ObjectStatus objStatus;
PropertyStatus propStatus;
objStatus = om.GetObjectStatus(obj);
if (objStatus != ObjectStatus.Deleted)
{
if (objStatus == ObjectStatus.NotLoaded)
{
pe.LoadObject(ref obj);
if (pe == null)
{
throw new ObjectNotFoundException("Object not found!"); // do not localize
}
}
propStatus = om.GetPropertyStatus(obj, propertyMap.Name);
if (propStatus == PropertyStatus.NotLoaded)
{
pe.LoadProperty(obj, propertyMap.Name);
}
}
else
{
//We really ought to throw an exception here...
}
}
//[DebuggerStepThrough()]
protected virtual void DoNotifyPropertySet(object obj, string propertyName, ref object value, object oldValue, bool hasOldValue, ref bool cancel)
{
IContext ctx = this.Context;
IObjectManager om = ctx.ObjectManager;
IPersistenceEngine pe = ctx.PersistenceEngine;
PropertyCancelEventArgs e;
if (hasOldValue)
{
e = new PropertyCancelEventArgs(obj, propertyName, value, oldValue, this.Context.ObjectManager.GetNullValueStatus(obj, propertyName));
}
else
{
e = new PropertyCancelEventArgs(obj, propertyName, value, this.Context.ObjectManager.GetPropertyValue(obj, propertyName), this.Context.ObjectManager.GetNullValueStatus(obj, propertyName));
}
this.Context.EventManager.OnWritingProperty(this, e);
if (e.Cancel)
{
cancel = true;
return;
}
value = e.NewValue;
IClassMap classMap = ctx.DomainMap.MustGetClassMap(obj.GetType());
IPropertyMap propertyMap;
string prevId;
string newId;
propertyMap = classMap.MustGetPropertyMap(propertyName);
if (propertyMap.ReferenceType != ReferenceType.None && value != null)
{
if (propertyMap.ReferenceType == ReferenceType.OneToMany || propertyMap.ReferenceType == ReferenceType.OneToOne)
{
//parent object
IInterceptable ivalue = value as IInterceptable;
if (ivalue == null)
{
throw new NPersistException(string.Format("Object is not a NPersist managed object, do not use 'new' on Entities. (Property='{0}', Owner={1})", propertyName, obj));
}
else
{
if (ivalue.GetInterceptor().Context != this.Context)
{
throw new NPersistException(string.Format("Object does not belong to the same context object as the property owner. (Property='{0}', Owner={1})", propertyName, obj));
}
ObjectStatus valueObjectStatus = om.GetObjectStatus(value);
if (valueObjectStatus == ObjectStatus.UpForDeletion || valueObjectStatus == ObjectStatus.Deleted)
{
throw new DeletedObjectException(string.Format("Object has been deleted. (Object={0})", value), value);
}
}
}
else if (propertyMap.ReferenceType == ReferenceType.ManyToOne || propertyMap.ReferenceType == ReferenceType.ManyToMany)
{
IInterceptableList ivalue = value as IInterceptableList;
if (ivalue == null)
{
throw new NPersistException(string.Format("List is not a NPersist managed list, do not use 'new' to initialize lists, NPersist does this for you. (Property='{0}', Owner={1})", propertyName, obj));
}
else if (ivalue.Interceptable.GetInterceptor().Context != this.Context)
{
throw new NPersistException(string.Format("List does not belong to the same context object as the property owner. (Property='{0}', Owner={1})", propertyName, obj));
}
}
}
if (propertyMap.IsReadOnly)
{
//Let read-only inverse properties through
if (!(propertyMap.ReferenceType != ReferenceType.None && propertyMap.Inverse.Length > 0 && propertyMap.NoInverseManagement == false))
{
//Special - if someone forgot to make their ManyOne read-only,
//why bug them about it? (so don't add an "else" with an exception...)
if (propertyMap.ReferenceType != ReferenceType.ManyToOne)
{
throw new ReadOnlyException("Property '" + classMap.Name + "." + propertyName + "' is read-only!"); // do not localize
}
}
}
PropertyStatus propStatus = PropertyStatus.Clean;
ObjectStatus objStatus = om.GetObjectStatus(obj);
bool hasPropertyStatus = false;
if (objStatus == ObjectStatus.Deleted)
{
throw new DeletedObjectException("The object has been deleted!", obj, propertyName); // do not localize
}
else if (objStatus == ObjectStatus.UpForDeletion)
{
throw new DeletedObjectException("The object has been registered as up for deletion!", obj, propertyName); // do not localize
}
this.Context.ObjectCloner.EnsureIsClonedIfEditing(obj);
if (objStatus == ObjectStatus.UpForCreation)
{
}
else if (objStatus == ObjectStatus.Clean)
{
propStatus = om.GetPropertyStatus(obj, propertyName);
if (propStatus == PropertyStatus.NotLoaded)
{
pe.LoadProperty(obj, propertyName);
}
if (!(hasOldValue))
{
if (!(om.ComparePropertyValues(obj, propertyName, value, om.GetPropertyValue(obj, propertyName))))
{
this.Context.UnitOfWork.RegisterDirty(obj);
}
}
}
else if (objStatus == ObjectStatus.NotLoaded)
{
propertyMap = this.Context.DomainMap.MustGetClassMap(obj.GetType()).MustGetPropertyMap(propertyName);
if (!(propertyMap.IsIdentity))
{
propStatus = this.Context.ObjectManager.GetPropertyStatus(obj, propertyName);
hasPropertyStatus = true;
//it would be sweet to be able to determine beforehand if this property would be part of the span
//that is loaded with LoadObject and only call LoadObject if that is the case....
if (propStatus == PropertyStatus.NotLoaded)
{
hasPropertyStatus = false;
//this.Context.PersistenceEngine.LoadObject(ref obj);
this.Context.IdentityMap.LoadObject(ref obj, true);
if (obj == null)
{
throw new ObjectNotFoundException("Object not found!"); // do not localize
}
}
if (!hasPropertyStatus)
{
propStatus = om.GetPropertyStatus(obj, propertyName);
}
if (propStatus == PropertyStatus.NotLoaded)
{
pe.LoadProperty(obj, propertyName);
}
}
if (!(hasOldValue))
{
if (!(om.ComparePropertyValues(obj, propertyName, value, om.GetPropertyValue(obj, propertyName))))
{
this.Context.UnitOfWork.RegisterDirty(obj);
}
}
}
else if (objStatus == ObjectStatus.Dirty)
{
propStatus = om.GetPropertyStatus(obj, propertyName);
if (propStatus == PropertyStatus.NotLoaded)
{
pe.LoadProperty(obj, propertyName);
}
}
if (propertyMap.IsIdentity)
{
prevId = om.GetObjectIdentity(obj);
newId = om.GetObjectIdentity(obj, propertyMap, value);
if (prevId != newId)
{
ctx.IdentityMap.UpdateIdentity(obj, prevId, newId);
}
}
om.SetNullValueStatus(obj, propertyName, false);
om.SetUpdatedStatus(obj, propertyName, true);
if (hasOldValue)
{
ctx.InverseManager.NotifyPropertySet(obj, propertyName, value, oldValue);
ctx.UnitOfWork.RegisterDirty(obj);
}
else
{
ctx.InverseManager.NotifyPropertySet(obj, propertyName, value);
}
}