Issue Details (XML | Word | Printable)

Type: New Feature New Feature
Status: Open Open
Priority: Major Major
Assignee: Unassigned
Reporter: Andy Jefferson
Votes: 0
Watchers: 0

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DataNucleus Store MongoDB

Schema evolution support : support field addition, change and removal

Created: 05/Apr/11 09:59 AM   Updated: 05/Apr/11 09:59 AM
Component/s: None
Affects Version/s: None
Fix Version/s: None

 Description  « Hide
During the lifecycle of a model class a user could do the following things to it
1. Add a field. Need to cater for objects in the datastore without this new field

2. Update type of field. Need to cater for migrating the data when accessed

3. Delete a field. Need to remove this redundant data from existent objects

We also have class rename as a possible scenario.

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