Hello Fineracters, I am migrating the project's ORM from Hibernate to OpenJPA and I want to use this thread to discuss issues related to it.
I have started building on the progress made by Isaac Kamga and I am currently changing the ORM to connect to PostgreSQL. I am working on the migration in this order 1. Postgres Library - https://github.com/ebenezergraham/fineract-cn-postgresql/commit/c10a1e77c3a290c1faa671621baf6c6037ba260a 2. Provisioner Service - https://github.com/ebenezergraham/fineract-cn-provisioner/tree/FINCN-2 3. Customer Service - https://github.com/ebenezergraham/fineract-cn-customer/tree/FINCN-2 *Entity enhancement blocker* I would like to know if anyone has experience on how to dynamically enhance entity classes for OpenJPA. Unlike hibernate, OpenJPA requires entity classes to be enhanced for monitoring purposes (read more here http://openjpa.apache.org/entity-enhancement.html). OpenJPA does not provide documentation on how to configure the enhancement with spring or gradle. I would appreciate it if someone could share their experience on how to handle this (a better way of doing this https://openjpa.apache.org/enhancement-with-maven.html with gradle or a plugin). The above issue has led to this error(full log here: https://pastebin.com/kGQu4qLH) Error creating bean with name 'jpaMappingContext': Invocation of init > method failed; nested exception is <openjpa-2.4.1-r422266:1730418 fatal > user error> org.apache.openjpa.util.MetaDataException: The type "class > org.apache.fineract.cn.customer.internal.repository.PortraitEntity" has not > been enhanced. *Issues Removing Hibernate Validator* OpenJPA and Javax validation combined does not provide all of the validations supported by Hibernate. I believe this is why the hibernate validator was used in the first place. However, there are a few cases eg: @NotBlank and @ScriptAssert used in Anubis https://github.com/ebenezergraham/fineract-cn-anubis/blob/b454a2729c5044a310413c4ce938b3760bb417c9/api/src/main/java/org/apache/fineract/cn/anubis/api/v1/domain/PermittableEndpoint.java#L29 . The approach I have taken is to write new validators to complement Javax validators. eg: A custom NotBlank validator in the Lang Library: https://github.com/ebenezergraham/fineract-cn-lang/commit/efb00532d3ae2ed5a24dac154c52d7581f27539f. Even though these validations are a few, I am not convinced of how it will scale. I'm open to suggestions. PS: I noticed that the out/ directory has not been ignored. Is there a special reason for this? If not, I will add them to the .gitignore file as I make the migrations in each service. This is because new contributors might mistakenly push compiled code onto GitHub. Looking forward to hearing from you. Warm Regards, Graham.
