[FEATURE REQUEST] Support auto-incrementing numeric ID for a document

[pk-218]

In Spring Data JPA, we have @GeneratedValue to create an auto-incrementing ID for our entity. However, Spring Data MongoDB does not support it. Currently there is a hacky approach to support this [1] by creating another collection that stores a sequence number.

This feature can be useful when migrating from a relational database that supports @GeneratedValue to MongoDB where a lot of the application logic has been modelled around the auto-incrementing ID. Also emphasis on the ID being numeric as the data type can be Long/Integer and easily supported, whereas switching to @Id in a @Document would mean a hexadecimal ObjectId of type String which means a lot of type conversions in the codebase.

[1] - https://www.baeldung.com/spring-boot-mongodb-auto-generated-field

[christophstrobl]

Thank you for getting in touch. This issue looks similar to the request raised via #1842. Therefore I'll be closing this one as duplicate. Please feel free to leave a comment/upvote on the other ticket or reopen this one if you feel they are not related.