Quynh Nguyen created JAMES-2183:
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Summary: Flags consistency when sharing mailbox
Key: JAMES-2183
URL: https://issues.apache.org/jira/browse/JAMES-2183
Project: James Server
Issue Type: Improvement
Reporter: Quynh Nguyen
Today, the Flags of a message are stored on the associations between the
message and its mailboxes.
As JMAP makes messages Top Level Domain objects, that might be in several
mailboxes, then we might need to merge several flags into a single one.
1/ We need to build a CRDT (Commutative) transformation for combining flags
together. The idea here is that the way we will reduce multiple set of flags
into only one set of flags will not depend of the order of the set.
For instance if the message is marked as important in one mailbox but not the
other, the GetMessages should return it as important.
For instance if the message is marked as unread in one mailbox but not the
other, the GetMessages should return it as read.
We need this transformation to be not order dependant.
2/ We need more testing to understand the state of different flags in James:
Especially, does GetMessageList in a specific mailbox reports messages being
flags (when the message is also marked as not flagged elsewhere?).
We might want to test SetFlags behaviour on such messages (in several mailboxes
with different flags).
2/ From the current state of flags in James, do you think we can improve our
handling of flags inconsistencies?
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