After you have completed your processing simply call the super's method.
For example:
public boolean requestFocusInWindow(){
if (IS_JRE_1_3){
requestFocus();
return false;
} else {
return super.requestFocusInWindow();
}
}
|---------+------------------------------------->
| | Dan Patten |
| | <[EMAIL PROTECTED]|
| | om> |
| | |
| | 30/08/2002 06:50 PM |
| | Please respond to "JDJList" |
| | |
|---------+------------------------------------->
>---------------------------------------------------------------------------------------------------------------|
|
|
| To: "JDJList" <[EMAIL PROTECTED]>
|
| cc:
|
| Subject: [jdjlist] RE: How to invoke method of super class using reflectio
n |
>---------------------------------------------------------------------------------------------------------------|
As I suspected, the invoke below calls the sub-class method recursively.
Any
ideas on how I call the parent?
I also tried getMethods and printed out all of the methods. Curiously it
listed the sub-class requestFocusInWIndow twice.
-----Original Message-----
From: Dan Patten [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 30, 2002 11:25 AM
To: JDJList
Subject: [jdjlist] How to invoke method of super class using reflection
We are flipping back and forth between 1.3.1 and 1.4.1 right now. We wanted
to handle a change from requestFocus used in 1.3.1 and prior to
requestFocusInWindow. We have a number of our own classes that extend Swing
Components so we thought we could over-ride requestFocusInWIndow so that it
would work whether we compiled in 1.3.1 or 1.4.1.
We though we might do the following:
public boolean requestFocusInWindow(){
if (IS_JRE_1_3){
requestFocus();
return false;
}
try{
java.lang.reflect.Method requestFocusInWindow =
super.getClass().getMethod("requestFocusInWindow",null);
Object result = requestFocusInWindow.invoke((JButton)this,null); //
.invoke(super,null); doesn't compile
return ((Boolean)result).booleanValue();
}
catch(Exception e){
return false;
}
}
My question is will the invoke statement actually invoke the
JButton.requestFocusInWindow or will it recurse into this sub-class method?
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