JRuntime

Dynamic class compilation

String classDef = "public class MyClass {"+ " public String toString() {" + " return \"MyClass\";" + " }"+ "}"; RuntimeClass runtimeClass = new RuntimeClass(classDef); System.out.println(runtimeClass.newInstance());

Dynamic block execution

RuntimeBlock sum = new RuntimeBlock( "return (Integer)params[0]+(Integer)params[1];"); System.out.println(sum.invoke(1, 2)); System.out.println(sum.invoke(5, 100));

Dynamic class modification

public class ClassToModify { public String simpleMethod(String text) { System.out.println("Text: " + text); return text; } } ... MutableRuntimeClass<ClassToModify> clazz = new MutableRuntimeClass<ClassToModify>(ClassToModify.class); ClassToModify instance = clazz.newInstance(new SimpleMutator() { @Override public void onBeforeMethod(Object instance, Method method, Object... params) { System.out.println("Before method: " + method.getName() + ", params: " + Arrays.toString(params)); } @Override public Object onAfterMethod(Object instance, Method method, Object result, Object... params) { System.out.println("After method: " + method.getName() + ", params: " + Arrays.toString(params)); return result; } }); instance.simpleMethod("Test mutable class!!!");