User story

When using a custom history event handler (or via the Spring event bridge, which is one such implementation) to listen to HistoricVariableUpdateEventEntity, I want access to the deserialized variable value.

Background information

The HistoricVariableUpdateEventEntity is not offering a method “Object getValue()”, like the one defined in the class HistoricDetailVariableInstanceUpdateEntity. This makes it fairly hard to access a derialized version of the value (users can attempt the deserialization themselves with the value fields).

Acceptance criteria

• A method can be used to access the deserialized value when listening to HistoricVariableUpdateEventEntity