Pull up and push down refactoring relates to the ability to move methods and members of a class up into a superclass, or down into a subclass.
First we will need a Java project so that we can perform some pull up / push down refactoring. We will use the same project from the earlier recipe, Rename refactoring, and so ensure that you have the project open from the end of that recipe. If you have not followed that recipe, the project is available from the code download bundle under the
MoveRefactor folder in
Chapter 3. When the Projects explorer shows the
Refactoring project, expand the
Refactoring node if not yet expanded.
Let's consider we have a class to represent a
Vehicle and a derived ...