Re: Variable defined (or not)

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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