在Eclipse中重命名重构

Question

While developing Eclispe plugin, I am able to programmatically rename a class-field using the following code.

RenameSupport renameSupport = RenameSupport.create(field, newName, RenameSupport.UPDATE_REFERENCES);
renameSupport.perform(workbench.getShell(), workbench);

But it applies the changes to the actual source files. Is there anyway that can be prevented? I just need the renamed code internally (for performing some other computations), must not change the actual source.

Please suggest.

Answer 1

You could copy it into a temporary file with File.createTempFile() and then rename the code in your temporary file, if RenameSupport lets you do that. If it doesn't, then you can copy the original to a temporary file and copy it back once your other computations are finished.

Answer 2

First, create an instance of RefactoringDescriptor . Then, invoke createRefactoring on it to create an instance of Refactoring . You can get the change object by invoking createChange on the Refactoring object. The Change object will tell you how the refactoring is going to change the code. Finally, you can invoke the method perform on the Change object to apply it on the underlying files.

The plugin org.eclipse.jdt.ui.tests.refactoring contains automated unit tests for Java refactorings in Eclipse. For a concrete example of how to invoke a refactoring programmatically, refer to org.eclipse.jdt.ui.tests.refactoring.RefactoringTest .