Whenever you put an object in a DataItem, NHibernate figures out how to save this 'Value' entity using what is called an Any mapping. As part of this Any mapping mechanism, NHibernate stores the (CLR, .NET) type of the object in a column in the database as fully qualified string. Also sometimes we map types directly, for whatever reasonexample ValueType of a dataitem.
This is all fine, until you rename a class..
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To solve this issue, we have added a custom HBM (meta)attribute in DeltaShell: oldClassName. The value of this attribute is used as an alias when resolving types. This happens automagically for Any mappingsthe any mapping of dataitem, but if you have mapped a Type column/property directly, make sure to load it using TypeUserType in your legacy mapping.
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