Entity constraints validation using SpringData mongo repository

[ssharma]

Hi,

I am using SpringData for mongoDb and have defined marker repository interfaces for my entities. All repositories extend a custom parent repository. I need to perform validation on my entities before saving them.

Since repository implementations are proxied at runtime I don't have a handle to write validate method in each repository. How do I ensure validation is invoked on each entity prior to save?

I have other requirements too where few child repositories may choose to override behavior of some methods.

- Auto generating GUID for all entities that are being saved. Logic to generate the id resides with the repository.



Thanks,
Sid

[Oliver Gierke]

As the repository infrastructure uses MongoTemplate have a look at the events [0] we support and implement a custom event listener.

[0] http://static.springsource.org/sprin...e-summary.html

[ssharma]

Thanks Oliver. I will flirt with BeforeSaveEvent<E>.

-Sid