Re: Variable defined (or not)

it seems that beta-7 had changed behavior of undefined var. See:
[GROOVY-579]: http://jira.codehaus.org/browse/GROOVY-579

but it affacts lot.
For example, Groovlet now can't get param as usual!

i write a single line groovlet
test.gl
-------
out << request.parameterMap

http://localhost/test/test.gl?foo

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented
it from fulfilling this request.

exception

groovy.lang.MissingPropertyException: No such property: a for class:
groovy.lang.Binding
        groovy.lang.Binding.getVariable(Binding.java:88)
        groovy.servlet.GroovyServlet.service(GroovyServlet.java:145)

note The full stack trace of the root cause is available in the Apache
Tomcat/5.0.28 logs.


but this works http://localhost/test/test.gl?out=foo&request=foo2
output:
[out:[foo], request:[foo2]]



Has anybody fixed it?

On Sat, 16 Oct 2004 20:38:57 +0900, 
phkim-Yd8/yUic+sk+MW+wcPHoAA@xxxxxxxxxxxxxxxx
<phkim-Yd8/yUic+sk+MW+wcPHoAA@xxxxxxxxxxxxxxxx> wrote:
> Hi, juhani
> 
> if(binding.getVariables().get('a')!=null)
>         b=[5, 9, 2, 2, 4, 5, 6].join("abc");
> else
>         b=[5, 9, 2, 2, 4, 5, 6].join(" - ");
> 
> This will help you.
> 
> Kim
> 
> On Sat, Oct 16, 2004 at 12:03:24AM -0700, juhani wrote:
> > Thanks! Groovy is embedded and called from servlet (data contains
> > request parameters as HashMap):
> > ========================================= Servlet clip:
> > groovy.lang.Binding binding = new groovy.lang.Binding(data);
> > GroovyShell shell = new GroovyShell(binding);
> > shell.evaluate( new File(fileName) );
> > ========================================= Testfile:
> > if(a!=null)
> >       b=[5, 9, 2, 2, 4, 5, 6].join("abc");
> > else
> >       b=[5, 9, 2, 2, 4, 5, 6].join(" - ");
> > ========================================= Results exception:
> > groovy.lang.MissingPropertyException: No such property: a for class:
> > groovy
> >         at groovy.lang.MetaClass.getProperty(MetaClass.java:697)
> > - -
> >
> > --- Jeremy Rayner <groovy-WROaGtoGdBGWkzVdRvz7FA@xxxxxxxxxxxxxxxx> wrote:
> > > On Fri, Oct 15, 2004 at 04:28:58AM -0700, juhani wrote:
> > > > Hi! How do you test if variable is defined or not?
> > > Hi, not sure of the context in which you're thinking,
> > > but inside a groovy script all variables are an object
> > > so a simple test for null should do the trick
> > > if (foo != null) {
> > >   println foo
> > > } else {
> > >   println "foo is undefined"
> > > }
> > > Hope that helps
> >
> >
> >
> >
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