/// <summary>
/// Loads the entity or set of entities from the thunk represented by the thunk's entity id(s).
/// </summary>
/// <returns></returns>
public object Load()
{
if (id != null)
{
return(context.GetList <R>().GetEntityById(id.Value));
}
else
{
return(context.GetList <R>().GetEntitiesById(ids));
}
}
/// <summary>
/// Creates an entity reference for deferred loading.
/// </summary>
/// <param name="context">Context used to load the entity.</param>
/// <param name="id">Primary key of the entity to be loaded.</param>
internal EntityRef(SharePointDataContext context, int id)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
_list = context.GetList <T>();
_id = id;
_entity = default(T);
_loaded = false;
}
/// <summary>
/// Creates a set of entity references for lazy loading.
/// </summary>
/// <param name="context">Context used to load the entities.</param>
/// <param name="ids">Primary keys of the entities to be loaded.</param>
/// <param name="onAdd">Action to take when an entity is added to the set.</param>
/// <param name="onRemove">Action to take when an entity is removed from the set.</param>
internal EntitySet(SharePointDataContext context, int[] ids, Action <T> onAdd, Action <T> onRemove)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (ids == null)
{
throw new ArgumentNullException("ids");
}
_list = context.GetList <T>();
_ids = ids;
_entities = null;
_loaded = false;
_onAdd = onAdd;
_onRemove = onRemove;
}