protected ModelProperty(string name, Type type, Type declaringType)
{
this.Name = name;
this.Type = type;
this.DeclaringType = declaringType;
this.opposite = null;
}
void INotifyModelClass.OnAddValue(ModelProperty property, object value, bool firstCall)
{
bool added = false;
if (property.IsCollection)
{
IModelCollection collection = this.GetValue(property) as IModelCollection;
if (collection != null)
{
if (value != null && collection.Add(value))
{
added = true;
}
else if (value != null && firstCall)
{
added = true;
}
}
}
else
{
object oldValue = this.GetValue(property);
if (value != oldValue)
{
if (oldValue != null)
{
(this as INotifyModelClass).OnRemoveValue(property, oldValue, false);
}
this.values[property] = value;
added = value != null;
}
else
{
added = value != null && firstCall;
}
}
if (added)
{
ModelProperty oppositeProperty = property.Opposite;
if (oppositeProperty != null)
{
INotifyModelClass oppositeObject = value as INotifyModelClass;
if (oppositeObject != null)
{
oppositeObject.OnAddValue(oppositeProperty, this, false);
}
}
}
}
public object GetValue(ModelProperty property)
{
object value;
if (this.values.TryGetValue(property, out value))
{
return value;
}
else
{
Func<object> initializer;
if (this.initializers.TryGetValue(property, out initializer))
{
value = initializer();
this.values[property] = value;
if (!property.IsCollection)
{
(this as INotifyModelClass).OnAddValue(property, value, true);
}
return value;
}
}
return null;
}
public static void LazyInit(ModelClass obj, ModelProperty property, Func<object> value)
{
obj.initializers.Add(property, value);
}
public void SetValue(ModelProperty property, object newValue)
{
object oldValue;
if (this.values.TryGetValue(property, out oldValue))
{
if (newValue == oldValue) return;
}
if (property.IsCollection)
{
this.values[property] = newValue;
}
else
{
(this as INotifyModelClass).OnAddValue(property, newValue, true);
}
}
public void LazyInit(ModelProperty property, Func<object> value)
{
this.initializers.Add(property, value);
}
public ModelCollectionBase(IModelClass owner, ModelProperty ownerProperty)
{
this.Owner = owner;
this.OwnerProperty = ownerProperty;
}
protected static ModelProperty RegisterProperty(Type declaringType, string name, ModelProperty property)
{
Dictionary<string, ModelProperty> propertyList;
if (!ModelProperty.properties.TryGetValue(declaringType, out propertyList))
{
propertyList = new Dictionary<string, ModelProperty>();
ModelProperty.properties.Add(declaringType, propertyList);
}
propertyList.Add(name, property);
return property;
}
