Re: [rules-users] How to define keywords that represent objects(in facts) to be able to use in rules
The basic idea of the DSL implementation in Drools is to use phrases (and
not just single
keywords) with a translation into DRL. These phrases can have parameters.
On 9 August 2012 19:08, san_drools <pathasantosh(a)yahoo.co.in> wrote:
Laune, the problem is when i define a keyword like i said above
"PersonMobileContact" for Object1($ContactNum : contactNumber &&
contacttype
== "mobile"). In business rule, i can use this keyword.
This is ok, but if i want to set this $ContactNum into another object
i.e. Object2. I think i need to define the key for this action too (like
"setContactNo" --> $Object2.setAccessPoint($ContactNum));) Because we
cannot
access $ContactNum directly. Or is any other way to do this.
You can use "$ContactNum" from the DRL translation. It's not
"hidden".
And another point to achieve is we will have to refer different
objects for
a keyword based on context. If we see above example, For
"PersonMobileContact" if the context is "productdelivery" i need to
refer
Object1. and if the context is "meetingschedule" i need to refer Object2.
Here you might use a parameter. Your DSL phrase can be
[when] PersonMobileContact with {X} ={X} ($ContactNum : contactNumber &&
contacttype
== "mobile")
and you can write
PersonMobileContact with Object1
PersonMobileContact with Object2
-W
I am just beginner in drools, so the things are new to me. Please
suggest.
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