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Annotations

1. StateMachine

Declared over a field of a class/entity. E.g.

2. TransitionValidatorHandler

Annotated over a class with two variables

  1. entity
  2. field Generally the consumer class lists all the validator methods which are executed while postUpdate event

3. TransitionValidator

Annotated over a method. This validates and makes sure the new state is a valid transition on top of the normal config check. The purpose of this method is to do external checks which config can't do.

4. PostUpdateActionHandler

Annotated over a class with two variables

  1. entity
  2. field

5. PostUpdateAction

IMPORTANT: function signature which makes use of this annotation must follow a signature described below While executing this function from this hibernate layer all these values will be passed.

    fun postUpdateHandlerMethod(entityId: Long, oldFieldValue: Any, newFieldValue: Any)

This annotation picks up functions and executes OUTSIDE of transaction boundary on both of the following events

  1. Post Update
  2. Post Insert: For post insert oldValue will always be empty ("") string