Re: Obtaining methods signature

Hi !
  Thanks, Joshua and Pietu,
   Unfortunately,  I'm restricted in using any extern packages in this  =

project, so I have written simple class for translation method's signatu=
re  =

 from general notation to jvm.


> Dmitry Marienko <dima@[EMAIL PROTECTED]
> wrote:
>
>>    I'm dumb on simple question. How can I get  method's signature in =
my
>> java program in "JVM notation" ?
>>   For example for class
>>    class A {
>>       void foo(int a,int b) { ... }
>>    }
>>   I would like to get  string .../A/foo(II)V  for method 'foo' . I  =

>> haven't
>> found any appropriate methods to do it.
>
>
> I believe that this information is not available in the standard Java
> API. Haven't followed late changes though..
>
> To get this info, I'm using the Apache BCEL library
> (http://jakarta.apache.org/bcel/):
>
>
> $ cat SignatureLister.java
> import java.io.*;
>
> import org.apache.bcel.*;
> import org.apache.bcel.classfile.*;
> import org.apache.bcel.generic.*;
> import org.apache.bcel.util.*;
>
> public class SignatureLister {
>     public static void main(String args[]) throws IOException {
>         ClassParser parser  =3D new ClassParser(args[0]);
>         JavaClass   clazz   =3D parser.parse();
>         Method[]    methods =3D clazz.getMethods();
>
>         for(int i=3D0; i<methods.length; i++) {
>             System.out.print(clazz.getClassName());
>             System.out.print(".");
>             System.out.print(methods[i].getName());
>             System.out.println(methods[i].getSignature());
>         }
>     }
> }
>
> $ javac -classpath bcel-5.2.jar SignatureLister.java
>
> $ $ java -cp bcel-5.2.jar:. SignatureLister A.class
> A.<init>()V
> A.foo(II)V
>

--dima