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problem with reflection

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Join Date: Jan 2008

Posts: 71

Reputation: ajithraj is an unknown quantity at this point

Solved Threads: 1

ajithraj

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Junior Poster in Training

problem with reflection

Apr 10th, 2008

haii
I have a problem while accessing a class(A) through "reflection" from class B....
i want to pass a parameter to class A...
My code is like this...

Method idMethod = Class.forName(ClassName).getMethod(FunctionName,null);
Method getMethod = Class.forName(ClassName).getMethod("getInstance", new Class[]{Class.forName("java.lang.String")});

Object object = getMethod.invoke(Class.forName(ClassName()),new Object[]{dboption});

lists = (ArrayList)idMethod.invoke(object,personId);

i will get correct result when the parameter is a String(Like above)...But how can i pass an Object ...

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Join Date: May 2007

Posts: 4,505

Reputation: Ezzaral has a brilliant future

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Ezzaral

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Industrious Poster

Re: problem with reflection

Apr 10th, 2008

Which method are you wanting to pass an object to? "idMethod" is getting a no-arg method and "getMethod" is getting this method getInstance(String) with this line

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
Method getMethod = Class.forName(ClassName).getMethod("getInstance", new Class[]{Class.forName("java.lang.String")});
Method getMethod = Class.forName(ClassName).getMethod("getInstance", new Class[]{Class.forName("java.lang.String")});

. If you need getInstance(Object) the you need to use

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
Method getMethod = Class.forName(ClassName).getMethod("getInstance", new Class[]{java.lang.Object.class});
Method getMethod = Class.forName(ClassName).getMethod("getInstance", new Class[]{java.lang.Object.class});

Your question is not very clear, so if that is not what you were asking you will need to clarify it a bit more.