<div dir="ltr">Hi, <br>The example I used is very simple.<br>I don't have a concrete idea on how the rules should look.<br>For example the return value can be map or insert new bean to working memory.<br>Probably I will have to build a generic component for processing and building packages.<br>
Are you familiar with an API that I can use?<br>Probably the BRMS component is doing the same - reading data base tables and building the DRL files.<br>Should I use it?<br><br>Thanks,<br>Meny<br><br><br><br><div class="gmail_quote">
On Tue, Mar 31, 2009 at 4:33 PM, Marcus Ilgner <span dir="ltr"><<a href="mailto:marcus.ilgner@gmail.com">marcus.ilgner@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
2009/3/31 Meny Kobel <<a href="mailto:meny.kobel@gmail.com">meny.kobel@gmail.com</a>>:<br>
<div><div></div><div class="h5">> Hi,<br>
> First - Thanks for your quick response.<br>
> Second - As I wrote rules conditions are saved in DB.<br>
><br>
> Conditions table example :<br>
><br>
><br>
> TypeName Operation Value Return Value<br>
> Var1 >= 5 “Segment<br>
> 1”<br>
> Var2 matches “someString” “Segment 1”<br>
> Var3 < 6 “Segment<br>
> 1”<br>
> Var4 == 1 “Segment<br>
> 2”<br>
> Var5 == 5 “Segment<br>
> 2”<br>
><br>
> The table above should trasform to the following DRL rule -<br>
><br>
> rule "example 1"<br>
> when<br>
><br>
> Bean(var1 >= 5 ,var2 matches "someString",var3 < 6)<br>
><br>
> then<br>
> list.add("Segment 1");<br>
> End<br>
><br>
> rule "example 2"<br>
> when<br>
> Bean(var4 == 1 ,var5 == 5)<br>
> then<br>
> list.add("Segment 2");<br>
> End<br>
><br>
> The conditions are dynamically build on Site by customer and I don’t know<br>
> the number of conditions And the conditions values(the values of columns<br>
> TypeName,Operation, Value and Return Value ).<br>
><br>
> On Tue, Mar 31, 2009 at 2:35 PM, Meny Kobel <<a href="mailto:meny.kobel@gmail.com">meny.kobel@gmail.com</a>> wrote:<br>
>><br>
>> Hi,<br>
>> Any updates regarding this subject?<br>
>> I have the same problem and can't find a solution.<br>
>> Like newbie I need to read varying rules from DB and transform them to<br>
>> drools language.<br>
>><br>
>> Thanks,<br>
>> Meny<br>
><br>
<br>
</div></div>Hi,<br>
<br>
since you seem to have a concrete idea on how your rules should look,<br>
you can simply render them into a String according to your<br>
specification and then pass a StringReader to<br>
PackageBuilder.addPackageFromDrl(). The resultig package can then be<br>
added to your rulebase.<br>
Of course you could also use rules to generate the rules from the<br>
conditions in the DB, which would be more complex but more extensible,<br>
too.<br>
<br>
HTH<br>
<font color="#888888">Marcus<br>
</font><div><div></div><div class="h5"><br>
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