[rules-users] Question on Drools upgrade from 2 to 5

[Mauricio Salatino]

Hi Steve,
I'm not sure about the problems that you are having but a lot of things
change from version 2 to 5. Probably the best way to make it work is to
create a small project with a few rules and start testing the results. If
you want to migrate your whole application you will be probably facing that
kind of errors without knowing where they happen.
My two cents..


2011/1/28 Steve Floridas <steve.floridas at gmail.com>

> Hi,
>
> We are an insurance company employing drools ( version 2 currently) for
> policy validation rules and for reading policy specific rates from
> spreadsheet using drools. We are currently running in to memory issues when
> we execute the compiled JAR ( including the drools compiled files), as there
> are lot of rules fired for different versions of policy rating. My question
> here is :-
> Is there any scope of resolving this memory issue with upgrade of drools
> package from version 2 to version 5? Will the compiled DRLs in Drools 5 be
> more compressed compared to Drools 2?
>
> I have been trying to upgrade to Drools 5 by adding the necessary jars for
> compilation. But unfortunately I am gettng few errors on spreadsheet and DRL
> compilation. Is there more to work on the upgrade?
>
> One of the errors I frequently get for spreadsheet comparison is something
> like below:
>
> *Invalid character input "?" (character code 65533)*
>
> Please clarify my above questions.
>
> Thank you much,
> Steve
> **
>
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