Aqua Help

Make Static

The Make Static refactoring converts an inner class or an instance method to a static one.

For class, this refactoring also automatically corrects all references to the class in the code.

For method, this refactoring also automatically corrects all calls, implementations and overridings of the method.

  1. Select a method or a class that you want to refactor.

  2. On the main or context menu, select Refactor | Make Static.

  3. In the dialog that opens, specify the refactoring options.

    • For a class, if the class references any outer class fields, Aqua suggests passing the outer class as a parameter to the inner class constructor.

    • For a method, if the method references any of the containing class fields, you can pass the whole referenced object as a parameter to the method (Add object as a parameter with name) or pass referenced fields/variables as parameters to the method (Add parameters for fields).

      If the method does not contain any references to fields or instance variables, you can specify whether or not you want to replace instance qualifiers with class references.

  4. Preview and apply your changes.

Make method static examples

Before

After

class ConnectionPool { public int i; public int j; public void getConnection() { ... } }
class ConnectionPool { public int i; public int j; public static void getConnection(ConnectionPool connectionPool) { ... } }
class ConnectionPool { public int i; public int j; public void getConnection() { ... } }
class ConnectionPool { public int i; public int j; public static void getConnection(int i, int j) { ... } }

In call hierarchies, if the method callers don't contain any other references to instance members, Aqua suggests that you make those callers static too. In this example, the refactoring is performed on baz(int i). All the caller methods are selected for making static too. The appropriate dialog lets you select the caller methods to be made static.

Before

After

class CallHierarchySample { private void foo(int i) { bar(i);} private void bar(int i) { baz(i);} private void baz(int i) { } }
class CallHierarchySample { private static void foo(int i) { bar(i);} private static void bar(int i) { baz(i);} private static void baz(int i) { } }

Make Class Static dialog

Use this dialog to specify options for the Make Static refactoring.

Item

Description

Replace instance qualifiers with class references

Specify whether you want to replace instance qualifiers with class references or not.

Make Method Static dialog

Use this dialog to specify options for the Make Static refactoring.

Item

Description

Add object as a parameter with name

Select this checkbox, if you want to pass the whole referenced object as a parameter to the method, then specify the name for the parameter in the field below.

Add parameters for fields

Select this checkbox to pass the referenced fields/variables as parameters to the method, then select the appropriate fields in the list.

Move Up/Move Down

Use this buttons to reorder parameters in the list.

Replace instance qualifiers with class references

Specify whether you want to replace instance qualifiers with class references or not. This checkbox is available if the method does not contain any references to fields or instance variables.

Last modified: 07 March 2024