class FileExplorerPresenter implements GuvnorStructureContextChangeHandler,
                   GuvnorStructureContextBranchChangeHandler {

    @OnShutdown
    public void onShutdown() {
        guvnorStructureContext.removeHandler(changeHandlerRegistration);
        guvnorStructureContext.removeHandler(branchChangeHandlerRegistration);
    }

    public  FileExplorerPresenter();
    @Inject public  FileExplorerPresenter(final FileExplorerView view,
                                 final GuvnorStructureContext guvnorStructureContext);

}