Tag Archives: Dream

Codeunit interfaces in AL

Nearly two and a half years ago I had a dream. It was about codeunit references and codeunit interfaces. And today, nearly two and a half years later I am still here, still having the same dream. We still cannot do codeunit interfaces in AL. But it doesn’t mean we don’t need them. We do. We badly do.

Two things triggered me to write this post about how badly we need codeunit interfaces, or any kind of polymorphism: a NAV TechDays talk, and a github project I saw.

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I had a dream: codeunit references

Polymorphism is a great thing. .NET, Java, C++ and other folks have enjoyed its benefits for a long time, some more than a quarter century already. Meanwhile, we, the meager C/AL bunch, can only dream about it and draft our little patterns that all come short of it if only by a tiny bit.

Sometimes it feels like writing code with a chalk on a blackboard. There may be no end to your imagination, but there is a very real end to what the board can do for you.

But dream we can. And let me have another dream.

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