I have a set of similar classes that all implement a function of the form
public static ClassA convertToClassA(Obj A)
public static ClassB convertToClassB(Obj B)
I want to loop through a list of classes and call this function that takes one argument of Obj in each class. How do I do this given each function is named differently?
Thanks for the help.
Class cls = Class.forName("ClassA");
String methodName = "convertTo" + cls.getSimpleName();
Method method = cls.getDeclaredMethod(methodName, new Class[]{Obj.class});
// If the underlying method is static, then the first parameter is ignored. It may be null as illustrated below.
method.invoke(null, your_object);
Create common interface with your method signature and let your invokable classes implement it, later on you can iterate over your objects as over instances of interface and call methods from it so no problem. HOWEVER I am starting to think you want to call method without knowing it's name AT ALL - the only knowlage of target method is the number and type of arguments. Well that indeed IS impossible via reflection BUT, it will be innacurate if similar methods signatures will be present. Anyway, don't know what are you trying to do, but your project is badly designed from the ground (no interfaces, poor inharitance I guess etc.)
take a look at the reflection package. it provide methods to get back all the methods an instance has provide.
The apache common's BeanUtil (http://commons.apache.org/beanutils) also provide some util method doing similar things.
