3 Replies Latest reply on Aug 21, 2004 11:08 PM by chiba

Can Javassit capture JDK lib method call like JLabel.setText

sjtuzl Aug 19, 2004 11:10 PM

I hope to add some methods before such kind of methods calls. Since Swing is loaded by bootstrap classloader and can not be loaded by Javaassit, is it possible to implement, and how?

Thanks

1. Re: Can Javassit capture JDK lib method call like JLabel.set

chiba Aug 21, 2004 11:46 AM (in response to sjtuzl)

Please set javassist.Loader.doDelegation to false
at the beginning.

Or, download the latest snapshot from the
CVS and try toClass().
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2. Re: Can Javassit capture JDK lib method call like JLabel.set

sjtuzl Aug 21, 2004 2:50 PM (in response to sjtuzl)

Thank you for the response. My intention is not modify Swing lib, but to capture the call of J**.setText() in user code. For example;

public MyClass test {

public static void main (String[] args){

JLable jLabel = new javax.swing.JLabel();
//Need to add a methd before it
jLabel.setText("test");
//Need to add a method after it
...

I need to apply above insert (before and after) operation for all Jxx.SetText() call, where Jxx is JLabel, JText, etc..

Is it possible for Javassit? Thanks
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3. Re: Can Javassit capture JDK lib method call like JLabel.set

chiba Aug 21, 2004 11:08 PM (in response to sjtuzl)

You can use CtClass.instrument(ExprEditor) for inserting
some expression before a method call to
Jxx.setText().

Is this what you need?
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