@Override public void generateDecorator(Decorable decorable, FactoryController controller) { controller.addInvokeBefore(decorable.getAsMethod(), Stmt.invokeStatic(TestDataCollector.class, "beforeInvoke", Refs.get("text"), Refs.get("blah"))); controller.addInvokeAfter(decorable.getAsMethod(), Stmt.invokeStatic(TestDataCollector.class, "afterInvoke", Refs.get("text"), Refs.get("blah"))); final Statement foobar = controller.addProxyProperty("foobar", String.class, Stmt.load("foobie!")); controller.addInvokeAfter(decorable.getAsMethod(), Stmt.invokeStatic(TestDataCollector.class, "property", "foobar", foobar) ); controller.addInitializationStatements(Arrays.<Statement>asList(Stmt.loadVariable("instance").invoke("setFlag", true))); controller.addDestructionStatements(Arrays.<Statement>asList(Stmt.loadVariable("instance").invoke("setFlag", false))); } }