/// <summary>
/// Applies the value changes created by the constructor to the underlying object, using the requested modification type to define how to apply the new values
/// </summary>
/// <param name="hologram">The object to apply the changes to</param>
/// <param name="valueChanges">The value changes to apply</param>
/// <param name="modificationType">The type of modification to apply to the object</param>
protected void ApplyValueChanges(MAObjectHologram hologram, IList <ValueChange> valueChanges, AcmaAttributeModificationType modificationType)
{
switch (modificationType)
{
case AcmaAttributeModificationType.Add:
hologram.UpdateAttributeValue(this.Attribute, valueChanges);
break;
case AcmaAttributeModificationType.Replace:
hologram.SetAttributeValue(this.Attribute, valueChanges.Select(t => t.Value).ToList <object>());
break;
case AcmaAttributeModificationType.Delete:
hologram.UpdateAttributeValue(this.Attribute, valueChanges);
break;
default:
throw new InvalidOperationException("The specified modification type is unsupported for this constructor");
}
}
/// <summary>
/// Removes a reference to the source object on the specified target object
/// </summary>
/// <param name="sourceObject">The object to remove the reference to</param>
/// <param name="targetObject">The object to remove the reference from</param>
private void RemoveReference(MAObjectHologram sourceObject, MAObjectHologram targetObject)
{
if (this.BackLinkAttribute.IsMultivalued)
{
targetObject.UpdateAttributeValue(this.BackLinkAttribute, new List <ValueChange>()
{
ValueChange.CreateValueDelete(sourceObject.ObjectID)
});
}
else
{
targetObject.DeleteAttribute(this.BackLinkAttribute);
}
}
/// <summary>
/// Adds a reference to the source object on the specified target object
/// </summary>
/// <param name="sourceObject">The object to add a reference to</param>
/// <param name="targetObject">The object to add the reference on</param>
private void AddReference(MAObjectHologram sourceObject, MAObjectHologram targetObject)
{
if (this.BackLinkAttribute.IsMultivalued)
{
if (!targetObject.HasAttributeValue(this.BackLinkAttribute, sourceObject.ObjectID))
{
targetObject.UpdateAttributeValue(this.BackLinkAttribute, new List <ValueChange>()
{
ValueChange.CreateValueAdd(sourceObject.ObjectID)
});
}
}
else
{
targetObject.SetAttributeValue(this.BackLinkAttribute, sourceObject.ObjectID);
}
}
