ValidationSteps in Entities

ValidationSteps types

The validationSteps of an Entity should contain exactly one contentValidation.

Internally, the ValidationStep that contains the contentValidation is refered to as the "contentValidationStep", or the "mid validationStep".

The validationSteps that are before the contentValidationStep are refered to as the "early validationSteps".

The validationSteps that are after the contentValidationStep are refered to as the "late validationSteps"..

Example : An Entity that has 5 validationSteps, and the third one contains the contentValidation :

Default validationSteps names

The name parameter of the ValidationStep is optional. If you omit it, it will be replaced by a default name :

For early validationSteps

	Default name	Example
1	Early1	InvalidPersonEarly1
2	Early2	InvalidPersonEarly2
3	Early3	InvalidPersonEarly3
...	...	...

If there's only one early validationStep, then its default name is 'Early' (instead of 'Early1').

For the content validationStep

Default name	Example
Mid	InvalidPersonMid

For late validationSteps

	Default name	Example
1	Late1	InvalidPersonLate1
2	Late2	InvalidPersonLate2
3	Late3	InvalidPersonLate3
...	...	...

If there's only one late validationStep, then its default name is 'Late' (instead of 'Late1').

Valid Param Transformations

During the contentValidationStep, the contentValidation is processed. So, if the Entity passes the contentValidationStep, it means that all the modddels it holds are valid.

As a result, the union-cases that come after the contentValidationStep all hold the valid version of the modddels. We call this the Valid param transformations.

For example : Let's say we have a Person SimpleEntity that has two fields : Age age and FullName name. This entity has 4 validationSteps named from 'Step1' to 'Step4', the second being the contentValidationStep.

All the union-cases after InvalidPersonStep2 will hold the valid version of the modddels : ValidAge age and ValidFullName name. These union-cases are :

• The ones matching the "late" validationSteps : InvalidPersonStep3 and InvalidPersonStep4

• The "valid" union-case : ValidPerson.