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DATAMONGO-2075 - Open up MongoTransactionManager to allow transaction commit customization and commit retry.

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Original pull request: #606.
This commit is contained in:
Christoph Strobl
2018-08-29 14:57:17 +02:00
committed by Mark Paluch
parent a991b96518
commit 04e53316c6
2 changed files with 52 additions and 9 deletions
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8
src/main/asciidoc/reference/client-session-transactions.adoc
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@@ -315,6 +315,14 @@ MongoDB does *not* support collection operations, such as collection creation, w
affects the on the fly collection creation that happens on first usage. Therefore make sure to have all required
structures in place.
*Transient Errors*
MongoDB can add special labels to errors raised during a transactional execution. Those may indicate transient failures
that might vanish by simply retrying the operation.
We highly recommend https://github.com/spring-projects/spring-retry[Spring Retry] for those purposes. Nevertheless
one may override `MongoTransactionManager#doCommit(MongoTransactionObject)` to implement a https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation[Retry Commit Operation]
behaviour as outlined in the MongoDB reference manual.
*Count*
MongoDB `count` operates upon collection statistics which may not reflect the actual situation within a transaction.