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Making method calls_simpler


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Chapter 10.
Diego Alejandro Rios Londoño

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Making method calls_simpler

  1. 1. Chapter 10. Diego Alejandro Rios Londoño.
  2. 2.  Objects are all about the interfaces. Coming up with the interfaces that are easy to understand and use is a key in developing good object-oriented software.  Often the simplest and most important thing you can do is to change the name of a method, naming is a key tool in communication.  If you understand what a programm is doing you should not be afraid to use Rename method to pass on that knowledge. You can also rename variables and classes
  3. 3.  Small methods to factor complex processes are very importat, done badly can lead you on a merry dance to find out what all the Little methods do. The key to avoid this merry dance is naming the methods.  The methods must be named in a way that communicates their intention.
  4. 4.  Normally used when you need more information in a method and this information was not sent yet.
  5. 5.  Remove parameter  Normally used when a method is no longer using the information sent by the parameter.
  6. 6.  You can easily add or remove parameter but you have to be careful because it can lead you on troubles,  If you have more than two parameters, you must be careful because you parameter list is getting bigger and it can be forgot.
  7. 7.  “When you have a function that gives you a value and has no observable side effects, you have a very valuable thing. You can call this function as often as you like. You can move the call to other places in the method. In short, you have a lot less to worry about. ”  “It is a good idea to clearly signal the difference between methods with side effects and those without. A good rule to follow is to say that any method that returns a value should not have observable side effects. Some programmers treat this as an absolute rule [Meyer]. I'm not 100 percent pure on this (as on anything), but I try to follow it most of the time, and it has served me well. ”
  8. 8.  Create a parameter for methods that do similar things and replace them with a new method with that parameter.
  9. 9.  When you are using methods that do something in base a parameter. You should create other methods that do what you want, just to avoid the conditional.
  10. 10.  You can send an object as a parameter when you need different information from the same object.
  11. 11.  Remove all methods that only affect one field and that do this just one time.
  12. 12.  A method is not used by any other class.