//------------------------------------------------------------------------------------
/// <summary>
/// Ensure that the given property is present in the in-memory cache - if not, the
/// property is populated with its initial value from the backing store (or with a
/// default empty value if the item is not a persisted type).
/// </summary>
//------------------------------------------------------------------------------------
private ItemProperty EnsureItemProperty(string dsPropName, string publicPropName, PropType type)
{
if (publicPropName == null)
{
throw new ApplicationException();
}
ItemProperty itemProperty = null;
lock (SyncLockItemProperties)
{
if (!ItemProperties.TryGetValue(publicPropName, out itemProperty))
{
itemProperty = new ItemProperty(this, dsPropName, publicPropName, type);
if (IsPersisted)
{
itemProperty.ReadFromStore();
}
ItemProperties.Add(publicPropName, itemProperty);
}
}
return(itemProperty);
}