[windup-dev] Wiki page <---- Re: Choose between xml, groovy or java based rules

[Ondrej Zizka]

I think these questions will appear again as it's a bit confusing 
subject (Java rules in XML, XML rules in XML, Java rules in Java, ...)

So here's a new wiki page where I compiled what was written here. Feel 
free to edit:
https://github.com/windup/windup/wiki/Rules-Difference-Between-XML-based-and-Java-based-Rules

(Sande - I hope it doesn't duplicate some such page - ?)

HTH,
Ondra


On 2.3.2015 17:04, Lincoln Baxter, III wrote:
> Samuel is writing a hands-on-lab :) even better.
>
> You are all correct! :D Great replies.
>
> On Mon, Mar 2, 2015 at 10:51 AM, Brad Davis <bdavis at redhat.com 
> <mailto:bdavis at redhat.com>> wrote:
>
>     The XML rules basically provide a short cut for creating rules for
>     Java and XML files.
>
>     * If you need to create a new report, you will need to write in Java.
>     * If you need to extend functionality beyond what the XML rules
>     provide, you will need to write in Java.
>     * But, if you are trying to just highlight a specific area of a
>     Java code or XML files and provide hints, fall back to leveraging
>     the XML rules.
>
>     Thanks!  Look forward to seeing your rules Samuel!
>
>     Brad Davis
>     Senior Manager, Red Hat Consulting
>     Email: bdavis at redhat.com <mailto:bdavis at redhat.com> | c:
>     980.226.7865 <tel:980.226.7865> | http://www.redhat.com
>
>
>     ----- Original Message -----
>     From: "Jess Sightler" <jsightle at redhat.com
>     <mailto:jsightle at redhat.com>>
>     To: windup-dev at lists.jboss.org <mailto:windup-dev at lists.jboss.org>
>     Sent: Monday, March 2, 2015 9:43:48 AM
>     Subject: Re: [windup-dev] Choose between xml, groovy or java based
>     rules
>
>     I don't expect that the XML rules will ever be as powerful as the
>     Java rules. I think that making them that powerful would actually
>     make them more complicated to use than the Java rules.
>
>     Having said that, if there are common cases that are requiring
>     Java, we would like to know that. We would like as many rules as
>     possible to be easy to write in the XML format.
>
>     On 03/02/2015 07:57 AM, Sande Gilda wrote:
>
>
>     Ondra, isn't the intent to try to continually improve the XML
>     rules so they have more and more of the functionality of the Java
>     rules?
>
>     On 03/02/2015 07:37 AM, Ondrej Zizka wrote:
>
>
>     Hi,
>
>     I'll try to sum up, someone may add or correct.
>
>     Groovy: That was an experiment, currently not finished AFAIK.
>
>     XML:
>     Pros: Should be easy and shorter, no need for recompilation,
>     picked up automatically from a known paths.
>     Cons: Only supports a subset of conditions and operations
>     (simplier ones); does not allow direct custom graph data manipulation.
>
>     Java:
>     Pros: Allows pretty much anything; easier debugging; IDE code
>     completion for Windup API;
>     Cons: Needs to be an full Forge addon (if not added to Windup core
>     codebase); needs more code (some of it boilerplate);
>     A bit more complex - author needs to know more of Windup internals.
>
>     HTH,
>     Ondra
>
>
>
>
>     On 1.3.2015 12:39, Samuel Tauil wrote:
>
>
>
>
>
>     Hi,
>
>
>
>
>
>     Why are the advantages and disadvantages of creating a XML or
>     Groovy based rule script as opposed to creating a Java Rule Add-on ?
>
>     When would one approach be recommended over another ?
>
>
>     Samuel Tauil
>     Senior Solution Architect
>     Global Partner Enablement
>     http://www.redhat.com/partners/partner-enablement
>     http://youtu.be/EdsvGcfIoJs
>     Ext. 8426191
>     Phone +55 11 3524-6191 <tel:%2B55%2011%203524-6191>
>
>
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> -- 
> Lincoln Baxter, III
> http://ocpsoft.org
> "Simpler is better."
>
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