Re: [rules-users] Need DRL authoring Help
you are close ;)
Yes, it is a challenge, thats what the examples are for etc.
but try this (FYI I think you mean "or"):
*rule* "UCCnet_DVE_Depth_All"
*when*
catalogObject : CatalogObject( )
eval( catalogObject.getElementValue("depth") == *null* ||
catalogObject.getElementValue("depth") == "" )
# String depth = CatalogObject.getElementValue("depth")
# depth == null
# depth == ""
# catalogObject : CatalogObject( depth == null)
# catalogObject : CatalogObject( depth == "")
*then*
# DON'T do this logWriter : LogWriter();
# BUT you can pass in a logWriter global variable
logWriter.logDebug("Package Depth is Blank");
System.out.println( "Package Depth is Blank" );
*end*
Hope that helps.
In the up coming BRMS, there will be a GUI which also has a secret purpose
of "coaching" what DRL looks like, for those who need to know.
On 4/4/07, John.Tal(a)gxs.com <John.Tal(a)gxs.com> wrote:
Writing DRL is not easy for people new to drools. Can someone please
help me understand how to write this simple rule? You can see the
approaches I have taken.
In this case I do not have getters and setters for the attributes I am
checking. I need to pass parameters to the object for it to get the data.
I can't get any of the code in the when block to be syntax proper.
Existing DRL doc is lacking in this area.
Thanks John
*rule* "UCCnet_DVE_Depth_All"
*when*
catalogObject : CatalogObject( getElementValue("depth") == *
null*, getElementValue("depth") == "")
# String depth = CatalogObject.getElementValue("depth")
# depth == null
# depth == ""
# catalogObject : CatalogObject( depth == null)
# catalogObject : CatalogObject( depth == "")
*then*
logWriter : LogWriter();
logWriter.logDebug("Package Depth is Blank");
System.out.println( "Package Depth is Blank" );
*end*
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Attachments:
- attachment.html (text/html — 14.6 KB)