Get Object persistence : beyond object-oriented databases PDF

By Roger Sessions

ISBN-10: 0131924362

ISBN-13: 9780131924369

For object-oriented programmers, program builders imposing power items, and datastore prone desirous to plug into this carrier. This publication describes the thing administration teams ordinary for the endurance item provider (POS), and the customer programming version, displaying precisely how patron code can be written to shop and restoration gadgets. the subsequent iteration of item endurance items should be according to this crucial specification

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Finally, we’ll look at how to magically manipulate method calls using one of the more advanced features that were introduced in PHP 5. 1 OBJECT FUNDAMENTALS There are two keys to understanding how objects and classes work. One is knowing the mechanics of writing a class and using the language constructs that support object-oriented programming. The other, more difficult, and advanced topic is understanding how to make objects interact in a way that achieves the main aim of object-oriented programming: maintainable code—that is, object-oriented design, which we will be looking at in the rest of this book.

But why should test-driven development feel better? Why is it more fun? It feels better because it’s less stressful and more satisfying than most other ways to program. You spend less time searching for bugs and more time programming. That is one source of stress eliminated. You get fewer complaints from dissatisfied users/customers. You get the freedom to play with and change the structure of your code. That means you can learn more. I recently read that brain researchers had found that learning has some of the same effects on the brain that cocaine does.

This chapter and the next focus on using the object-oriented language features of PHP 5, without going too deeply into design considerations. This sequence might seem lopsided, since it’s customary to start with the theory and then show how to practice it. The idea here is to start with just a little theory and get some practice to solidify it before moving on to more advanced ideas. In this section, we’ll do an overview of some of the basic mechanics of PHP objects. We’ll think a little bit about what classes and objects are, do a simple “Hello world” example, look at how we create objects, and introduce the notion of class inheritance.

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Object persistence : beyond object-oriented databases by Roger Sessions


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