Benjamin Reitzammer wrote:
Hi,
On 2/14/06, neil.benn <[EMAIL PROTECTED]> wrote:> This returns
'NeilNeilNeilNeilNeil' - all good so far. However I want to> be able to pass Java variables
to Jython (I'll include JRuby and Groovy again> at some point). For this, I reckon I need to
use the apply function.> However, I'm confused - the docs state that I need :
I don't have the javadoc at hand (it would be great if the javadoccould be
found on the jakarta BSF website, BTW), but looking at mycode, I can tell that
you need thedeclareBean()-method from the BSFManager class. Something like this:
BSFManager manager = new BSFManager();manager.declareBean("objList", new
ArrayList(), List.class);
This code makes a variable called "objList" available to your script.
A non-official but fairly recent online version of the BSF Javadocs can
be found at:
<http://wi.wu-wien.ac.at/rgf/rexx/bsf4rexx/current/docs/docs.apache.bsf/>.
Infos on apply() can be found in:
<http://wi.wu-wien.ac.at/rgf/rexx/bsf4rexx/current/docs/docs.apache.bsf/org/apache/bsf/engines/java/package-summary.html>.
---
In case you have not already found the BSF supplied P|Jython example
("calculator.py"), here it is, showing how you can interact with Java
via BSF:
-------------------- cut here ------------------
"""\
A silly little calculator implemented in JPython using
Java components for the UI.
"""
import java
from java import awt
def exit(e): java.lang.System.exit(0)
def getField (f):
t = f.getText ()
if t == '':
return 0
else:
return java.lang.Integer.parseInt (t)
def doMath (e):
n1 = getField (f1)
n2 = getField (f2)
sum.setText (repr (n1 + n2))
diff.setText (repr (n1 - n2))
prod.setText (repr (n1 * n2))
quo.setText (repr (n1 / n2))
f = awt.Frame ('BSH Calculator (jpython)', windowClosing=exit)
f1 = awt.TextField (20, actionPerformed=doMath)
f2 = awt.TextField (20, textValueChanged=doMath)
p = awt.Panel ()
p.setLayout (awt.GridLayout (2, 2))
p.add (awt.Label ('Enter Operand'))
p.add (f1)
p.add (awt.Label ('Enter Operand'))
p.add (f2)
f.add ('North', p)
f.add ("Center", awt.Label ('Results:'))
p = awt.Panel ()
p.setLayout (awt.GridLayout (4, 2))
p.add (awt.Label ('Sum'))
sum = awt.TextField (20)
p.add (sum)
p.add (awt.Label ('Difference'))
diff = awt.TextField (20)
p.add (diff)
p.add (awt.Label ('Product'))
prod = awt.TextField (20)
p.add (prod)
p.add (awt.Label ('Quotient'))
quo = awt.TextField (20)
p.add (quo)
f.add ('South', p)
f.pack ()
f.show ()
f.toFront ()
-------------------- cut here ------------------
You would invoke that script like:
java org.apache.bsf.Main -in calculator.py -mode exec
HTH,
---rony
