Re: getMethod() works and works not
Alexander Burger wrote:
Alexander Burger <abu@software-lab.de> wrote:
For example, this works (analog to the posted plain Java example):
(setq
frame (java "javax.swing.JFrame" T "Title")
panel (java frame "getContentPane")
area (java "javax.swing.JTextArea" T 10 40) )
(java frame "setSize" 300 200)
This for example is an interesting case.
As I said, it works, and in effect it calls
getMethod("setSize", java.lang.JFrame)
(Corrected to frame.getClass().getMethod("setSize", Integer.TYPE,
Integer.TYPE) in subsequent message)
But the class 'JFrame' doesn't have 'setSize' defined, it inherits it
from java.awt.Window. Why does it work here, but not in the following
case?
getMethod looks for a "public member method" of the class. JFrame does
indeed have a public method member setSize(int,int). The members of a
class include inherited members of its superclass, as well as members it
directly declares.
If you ever need to look only for methods declared directly in the
class, you should use getDeclaredMethod instead of getMethod.
# ??? (java panel "add" JTextArea)
What is the getMethod translation? Does the class in question have an
"add" method member, either by declaration or inheritance, with the
right parameter types?
Patricia