[rules-users] Bugs in rule templates?

[Wolfgang Laun]

Before you work on a JIRA could you please provide an (abbreviated) example
of a template that causes both errors?
-W

2011/11/3 Bruno Freudensprung <bruno.freudensprung at temis.com>

> **
> Hi all,
>
> I am writing rules using Drools Templates and I noticed strange problems
> (ocurring when I slightly modify a DRT that works well):
>
>    1. the template instanciation depends on the declarations order of the
>    parameters in the template header
>    2. if the rule template does not contain a package declaration
>    (default package) the instanciation of the template fails
>
> I am working with Drools 5.1.1 but those problems occur in 5.2.0.Final and
> in 5.3.0.Final as well.
> Do you think it is worth posting a JIRA?
>
> Anyway let me tell you that Drools Templates are great! Our users like
> that feature a lot! They start writing a rule in DRL format and, once it
> works, they transform it into a DRT and put data into a tsv file. It is
> quite a natural way of working. The general perception here is that it is
> easier to "templatize" an existing DRL than to write a decision table from
> scratch.
>
> Best regards,
>
> Bruno.
>
> PS:
>
> *DRT that works well*:
>
> template header
> *name
> message
>
> package templates;
> *
> import org.drools.bug.Entity;
>
> template "TestTemplate"
> rule "Test1 @{row.rowNumber}"
>     dialect "mvel"
>     when
>         Entity( $name : name == "@{name}" )
>     then
>         System.out.println("@{message}" + $name);
>         insert($name);
> end
> end template
>
> *DRT that does not work* (first case):
>
> template header
> *message
> name
>
> package templates;
> *
> import org.drools.bug.Entity;
>
> template "TestTemplate"
> rule "Test1 @{row.rowNumber}"
>     dialect "mvel"
>     when
>         Entity( $name : name == "@{name}" )
>     then
>         System.out.println("@{message}" + $name);
>         insert($name);
> end
> end template
>
>
> *DRT that does not work* (second case):
>
> template header
> *name
> message
> *
> import org.drools.bug.Entity;
>
> template "TestTemplate"
> rule "Test1 @{row.rowNumber}"
>     dialect "mvel"
>     when
>         Entity( $name : name == "@{name}" )
>     then
>         System.out.println("@{message}" + $name);
>         insert($name);
> end
> end template
>
>
>
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>
>
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