[Jython-users] Boolean question

[Steve Y. <st...@ca...>]

Hi folks,

I've been using Jython for well over a year, and it has
served me faithfully without a hitch.  I'm using it in an
online role-playing game (http://www.cabochon.com) with
thousands of active players, and I use my embedded jython
interpreter(s) literally every day.

I've run across an interesting problem.  My game object
tree has a base class (GameObject) that has a hashtable
of properties, and one of the possible property values is
type boolean.  Usually jython figures out what I'm trying 
to do and converts the value '0' to Java's 'false'.

I've found a case where it doesn't work:

     from java.lang import Boolean
     ...
     obj.setProperty("foobar", Boolean.FALSE)

I also tried:

     obj.setProperty("foobar", 0)

but that somehow turns 0 into an int value and uses that,
where I really wanted a boolean.

My base class has the following relevant methods:

   public void setIntProperty(String name, int value)
   public void setProperty(String name, Object value)

(Notice how I've basically cloned jython's object-property
list in java - I started before jython was availible.  Sorry.)
Presumably it's the second method that's being invoked here.

So when I try to setProperty with Boolean.FALSE, jython
somehow actually converts the Boolean.FALSE to a zero,
and then winds up setting the property with an int value of 0
instead of a boolean value of true.  Unfortunately, that dorks
my code that's expecting the value to be a boolean.  In case
you were wondering, it means I can't uncurse certain rings in
the game - funny how these issues translate into real bugs.

Sooo... is there any way to force jython to invoke my method
with a value that corresponds to the Java boolean value of
'false', rather than an int zero?

Thanks much,

-steve