[ATLAS-1230] Update AtlasTypeRegistry to support batch, atomic type updates

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8-incubating
• Assignee: Madhan Neethiraj
• Reporter: Madhan Neethiraj
• Created: 18/Oct/16 23:01
• Updated: 19/Oct/16 09:50
• Resolved: 19/Oct/16 09:50

Description

AtlasTypeRegistry includes methods to get/add/update types in the system. While adding a bunch of types in a call, any failures might leave the registry in inconsistent state - and such registry state can cause errors later. Changes to the registry should be performed via a well defined API call i.e. not via multiple APIs like add/update/delete types. An approach similar to current typesystem, by using a transient registry, would be helpful. With this, AtlasTypeRegistry will support only read methods and all the changes will be made available via createTransientTypeRegistry()/commitTransientTypeRegistry() calls. TransientTypeRegistry will support methods to add/update types