CODEWITHSUNDEEP
javaeclipse
H2ONaCl
H2ONaCl

Reputation: 11309

Eclipse Java clean-up feature

Eclipse has an automatic Java clean up that is called:

change indirect access to static members to direct access (accesses through subtypes)"`

What does it mean?

Edit: Note that there is another one that is

change non-static access to static members using declaring type

so the subject of my inquiry has to be different from this.

These are in Windows > Preferences > Java > CodeStyle > Clean-Up which is almost impossible to find because it is under Windows.

Upvotes: 0

Views: 291

Answers (3)

user1803551
user1803551

Reputation: 13427

Assume you have the class

class A {

    static int i;
}

Then

change indirect access to static members to direct access (accesses through subtypes)

refers to a case where you have another class

class B extends A {}

and write

B.i = 2;

in which case the cleanup will change it to

A.i = 2;

since (as I wrote in my comment) the static member will be accessed through the class in which it's declared (A), and not through a class inheriting it (B).

change non-static access to static members using declaring type

refers to a case where you write

A a = new A();
a.i = 2;

in which case the cleanup will change it to

A.i = 2;

since the static member will be accessed through the class (A) instead of through an instance of the class (a).

Upvotes: 2

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79875

This fixes up the case where you've got a static method in one class, but you're calling it using the name of a subclass. So, the static method might be

SuperClass.someStaticMethod();

but you've referenced it as

SubClass.someStaticMethod();

Note that it's similar to another clean-up, where you call a static method, like myObject.someStaticMethod(); in place of TheClass.someStaticMethod();. The part in parentheses indicates that it's the "access through a subtype" clean-up.

Upvotes: 1

Zaira Zafar
Zaira Zafar

Reputation: 108

You're calling your static variable/method through object instead of the class where it's defined. When it says 'by declaring type ' it means that you declared your variable/method as a class variable/method and you should call it by that.

Upvotes: 0

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