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Refactoring
1.1. Move Method ¶
A method is, or will be, using or used by more features of another class than the class on which it is defined.
Create a new method with a similar body in the class it uses most. Either turn the old method into a simple delegation, or remove it altogether.
1.2. Move Field ¶
A field is, or will be, used by another class more than the class on which it is defined.
Create a new field in the target class, and change all its users.
1.3. Extract Class ¶
You have one class doing work that should be done by two.
Create a new class and move the relevant fields and methods from the old class into the new class.
1.4. Inline Class ¶
A class isn't doing very much.
Move all its features into another class and delete it.
1.5. Hide Delegate ¶
A client is calling a delegate class of an object.
Create methods on the server to hide the delegate.
1.6. Remove Middle Man ¶
A class is doing too much simple delegation.
Get the client to call the delegate directly.
1.7. Introduce Foreign Method ¶
A server class you are using needs an additional method, but you can't modify the class.
Create a method in the client class with an instance of the server class as its first argument.
~cpp Date newStart = new Date (previousEnd.getYear(), previousEnd.getMonth(), previousEnd.getDate() + 1);
~cpp
Date newStart = nextDay (previousEnd);
private static Date nextDay (Date arg) {
return new Date (arg.getYear(), arg.getMonth(), arg.getDate() + 1);
}
