@Override
public void execute() {
fOldPos =
fOldParent
.getElements()
.indexOf(fElement); // do this here as its part of a compound command
redo();
}
@Override
public void redo() {
fOldParent.getElements().remove(fElement);
fNewParent.getElements().add(fElement);
}
@Override
public void undo() {
fNewParent.getElements().remove(fElement);
fOldParent.getElements().add(fOldPos, fElement);
}