workavia-mail-front/docs/adr/0027-use-tuplekey-store-data-cache.md

27. Use TupleKey store data cache

Date: 2023-04-27

Status

Accepted

Context

• Multiple accounts login at the same time in the same browser. The accounts will use the same database (IndexDatabase).

Decision

• Use unique parameters (AccountId, UserName, ObjectId(MailboxId/EmailId/StateType) to form a unique key for storage (called TupleKey).
• TupleKey has the format: ObjectId | AccountId | User;
• HiveDatabase includes many Box. Each box is a Map<Key, Object> with key=TupleKey.

Consequences

• The correct mailbox and email lists are obtained for each account