B4J Library [B4X]A Hierarchical Class Generator

If you have a class structure described as follows:

B4X:
    Dim tree As String = _
        $"
            PersonHood
                PersonalInfo
                    VitalStats
                        FullName.String
                        PreferredGender.String
                        Birthdate.Long
                    Contact
                        Address.String
                        Phones.List
                        Emails.List
                    Financial
                        Incomes.List
                        Banks.List
                        CreditCards.List
                        Assets.List
                    Employment
                        Employers.List
                    History
                        EducationStages.List
                        HealthConditions.List
                        PastEmployements.List
                        LegalSituations.List
                LifeRoles
                    ParentOf.List
                    SpousePartnerOf.List
                    SiblingOf.List
                    ChildOf.List
        "$
And you want to be able to do this on all B4X Platforms:
B4X:
    Dim WiL As clsPersonHood = PersonHood.New(PersonalInfo.New( _
            VitalStats.New("William Lancee", "Male", DateTime.DateParse("1946-11-19")), _
            Contact.New("205 XXXXXX St., Toronto, ON, Canada"), _
            Financial.New, Employment.New, History.New), LifeRoles.New)
    WiL.Phones.Add("1-(xxx) xxx-xxx1")
    WiL.Phones.Add("1-(xxx) xxx-xxx2")
    WiL.Phones.Add("1-(xxx) xxx-xxx3")   
            
    Log(WiL.FullName)                                '    William Lancee
    Log(WiL.PersonalInfo.FullName)                    '    William Lancee
    Log(WiL.PersonalInfo.VitalStats.FullName)        '    William Lancee
    
    WiL.FullName = "WiL"
    Log(WiL.FullName)                                '    WiL
    Log(WiL.PersonalInfo.FullName)                    '    WiL
    Log(WiL.PersonalInfo.VitalStats.FullName)        '    WiL
    
    WiL.Phones.Add("1-(xxx) xxx-xxx4")
    Log(WiL.Phones.Get(WiL.Phones.Size - 1))        '    1-(xxx) xxx-xxx4
    WiL.Phones.RemoveAt(WiL.Phones.Size - 1)
    Log(WiL.Phones.Get(WiL.Phones.Size - 1))        '    1-(xxx) xxx-xxx3

    Log(DateTime.Date(WiL.Birthdate))                '    1946-11-19                'fake
You can achieve this manually, but the process has many repetitive parts, and it can be frustrating.
So here is a 'classGenerator' class that displays the class tree as a graph and generates the necessary classes.
They are saved in the parent directory of a B4XPages project, so that they can be easily added as Existing Modules.
The Log will have the two sections that are needed for the B4XMainPage (one in Class_Global and one in Initialize)

Notes:
1. You can look at each class and add Class-specific Methods and Delegates to other Methods
2. You can remove "setters" to make properties read-only (i.e. equivalent to Constants)
3. You can remove "getters" to limit access to properties
4. The 'New' Subs takes advantage of the fact that classes can spawn instances of themselves - this avoids endless initializations
5. The generator class displays class trees in B4J and B4A, but since it accesses the project folder, classes should be generated in B4J
6. The demo shows a relatively 'Simple' tree, but it generates 8 classes with a total of 582 lines of code
7. Please use (or not) any or all of these techniques in any way you like.

Comments are welcome.
 

Attachments

  • classGen.zip
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