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@redhat.com | c: 980.226.7865 | http://www.redhat.com

----- Original Message -----
From: "Jess Sightler" <jsightle@redhat.com>
To: windup-dev@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


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