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James Dempsey and the Breakpoints
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Modelin' Man
Modelin' Man, I'm a Modelin' Man They say 'Are you in modelin'?', I say 'Oh yes I am' There's no catwalk involved in the modelin' I do. There's no demand for me to try that kind of modelin' too.
Some people want a data model for a new application Don't want to write a lot a code, simply use configuration To refine their data model with each new iteration As they build a prototype with persistence automation.
Some people want to date a model, but prefer one in fashion. If you date a data model, that's an interesting passion. If you're a dreamer with a schema you can usually cash in, Though you ain't got the looks and your clothes they are clashin'.
Modelin' Man, I'm a Modelin' Man Let me lay it all out so that you'll understand You'll have the terminology and concepts at your command So you can also be a modelin' woman or man
Now, the Managed Object Model, also known as the MOM Describes the data model your app acts upon You can build your data model as pretty as you please Adding items to the model known as entities.
An entity's All right by me It's what a thing's supposed to be What type, what sort, what class, what kind Whatever you might have in mind You pick a name, map to a class Now your model's growing fast You work some more and come to grips With attributes and relationships.
Find more lyrics at ※ Mojim.com Oh baby, now you're modeling too. Oh baby, what more for a Modelin' Man to do?
An attribute or relationship is known as a property No, not the kind that they use in Monopoly Use the words with precision, don't use 'em sloppily Or confusion will ensue like episodes of Three's Company.
Modelin' Man, I'm a Modelin' Man They say 'Are you in modeling?', I say 'Oh yes I am' There's no photographers involved in the modelin' I do, I got turned down by everyone I sent my headshot to.
An attribute's a simple value, string, number, or date Or a big old blob of data that's containing some state. You can mark it transient if you don't care about its fate Otherwise it will persist in data stores that you create.
Two entities can be connected, kinda joined at the hip, The formal name for this arrangement is a relationship. One object references another so it can't give it the slip, The inverse reference is maintained for a convenient round trip.
Modelin' Man, I'm a Modelin' Man They say 'Are you in modelin'?' I say 'Oh Yes, I am' But don't come knockin' if it's rockin' in the back of my van, I'm probably wrestling with relationships I don't quite understand.
Modelin' Man, I'm a Modelin' Man They say 'Are you in modelin'?' I say 'Oh Yes, I am' It's not too glamorous at all, this kind of modelin' it's true, But I'd like to see a supermodel build the apps that we do.
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