Make State Machine Mongo Collection Name (MongoDbRepositoryStateMachine) Configurable

[chinthakadd]

It seems that MongoDbRepositoryStateMachine Document Entity has a hard-coded collection name. This makes it difficult for consumers who has different collection naming conventions to make it configurable.

Can we provide SPEL/ Spring Configuration or Java Config based support to override the default collection names?

spring-statemachine/spring-statemachine-data/mongodb/src/main/java/org/springframework/statemachine/data/mongodb/MongoDbRepositoryStateMachine.java

Line 28 in 1b2a868

@Document(collection = "MongoDbRepositoryStateMachine")

[ZhongceXie]

use case: since I created two state machines (order and transaction) in the same spring package, I think it's reasonable to store two state machines under the same DB with different collection names.

correct me if there is a better way to implement under such scenario.

[chinthakadd]

@ZhongceXie thank you for the comment. Yes that is a valid use-case IMO. In our case, our organization follows a standard convention of naming collection which differs from the MongoDbRepositoryStateMachine style naming. So we would like to have the flexibility to customize the name.