anything used in the LHS (when) must return a boolean, and be used inside an
eval() etc... it can't just appear freeform in a when. Slap an eval() around
the doSomething() (it will need to return true) and see if that works for
you.
On 4/4/06, Paul Smith <[EMAIL PROTECTED]> wrote:
>
> I was basically trying a few different constructs but the following is not
> valid:
>
> package testing
>
> import testing.AddressDetail
>
> expander crm.dsl
>
> function void doSomething(String s) {
> System.out.println(s);
> }
>
> rule "MandatoryStreet1AddressNotNull"
>
> when
> The first street address line is empty
> Send 'in when' to doSomething <-- If I take this line out then
> it's
> legal but with it in I get the stack trace below
> then
> Add the message that the first street address cannot be empty
> Send 'do something' to doSomething
> end
>
>
> -------------------------------------------------------------------------------------------------------------------------
> org.drools.rule.InvalidRulePackage: Unable to resolve ObjectType
> 'doSomething'
>
> at org.drools.rule.Package.checkValidity(Package.java:370)
> at org.drools.reteoo.RuleBaseImpl.addPackage(RuleBaseImpl.java:247)
> at testing.FunctionTest.testFunction(FunctionTest.java:26)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> at junit.framework.TestCase.runBare(TestCase.java:127)
> at junit.framework.TestResult$1.protect(TestResult.java:106)
> at junit.framework.TestResult.runProtected(TestResult.java:124)
> at junit.framework.TestResult.run(TestResult.java:109)
> at junit.framework.TestCase.run(TestCase.java:118)
> at junit.framework.TestSuite.runTest(TestSuite.java:208)
> at junit.framework.TestSuite.run(TestSuite.java:203)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(
> RemoteTestRunner.java:478)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(
> RemoteTestRunner.java:344)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(
> RemoteTestRunner.java:196)
>
> The .dsl file is as follows:
>
> #Customer Relationship Management domain specific language.
> [when]The first street address line is empty=$ad : AddressDetail(street1
> ==
> "")
> [when]The postcode is empty=$ad : AddressDetail(postcode == " ")
> [then]Add the message that the first street address cannot be empty=
> System.out.println("Enter the street address dummy");
> Send '{s}' to doSomething=doSomething("{s}");
>
>
> I realise it's a bit of dumb example but for arguments sake, doSomething
> may
> be performing a bit more of a complex evaluation.
>
> On 4/4/06, Michael Neale <[EMAIL PROTECTED]> wrote:
> >
> > my mistake, you should be able to call it, there are a fair few
> > integration
> > tests that cover that (Mark tells me).
> >
> >
> >
> > On 4/4/06, Michael Neale <[EMAIL PROTECTED]> wrote:
> > >
> > > When in the "when" (he heee) do you want to call it? The only places
> are
> > > in an eval, or predicate or return value... I am not sure if they are
> > > allowed in there by design.
> > >
> > >
> > > On 4/4/06, Paul Smith <[EMAIL PROTECTED]> wrote:
> > > >
> > > > I don't seem to be able to call functions from within the 'when'
> > clause
> > > > of a
> > > > drl in Drools 3.0. Is this by design or a flaw?
> > > >
> > > >
> > >
> >
> >
>
>
