x27;t changed (i.e. every time the condition
>> is
>> encountered) because drools has no way of knowing if they've changed or
>> not.
>>
>> So, after this long winded spiel, here's my suggestion: get the rule(s)
>> to
>> work u
ssion would be. I can
think of some hacks, but would rather not lead you down a garden path. :) Dev
d00ds, any comment?
--- On Sun, 3/1/09, David Boaz wrote:
> From: David Boaz
> Subject: Re: [rules-users] Creating objects in WHEN clause
> To: rules-users@lists.jboss.org
> Date: Sund
Ah, I thought the LHS was parsed into mvel by default. OK, my bad.
--- On Sun, 3/1/09, Edson Tirelli wrote:
> From: Edson Tirelli
> Subject: Re: [rules-users] Creating objects in WHEN clause
> To: greg_bar...@yahoo.com
> Date: Sunday, March 1, 2009, 6:19 PM
> Hold on. :) We ar
rs for Comparables is an mvel
feature.
--- On Sun, 3/1/09, Edson Tirelli wrote:
> From: Edson Tirelli
> Subject: Re: [rules-users] Creating objects in WHEN clause
> To: greg_bar...@yahoo.com, "Rules Users List"
> Date: Sunday, March 1, 2009, 12:46 PM
> Just a comment:
>
&
en if they haven't changed (i.e. every time the condition is
> encountered) because drools has no way of knowing if they've changed or not.
>
> So, after this long winded spiel, here's my suggestion: get the rule(s) to
> work using "from" but also try insertin
tFocus("whatever_your_next_group_is");
> end
>
> --- On Wed, 2/25/09, Mauricio Salatino wrote:
>
>> From: Mauricio Salatino
>> Subject: Re: [rules-users] Creating objects in WHEN clause
>> To: "Rules Users List"
>> Date: Wednesday, February 25
--- On Thu, 2/26/09, David Boaz wrote:
> My Quantity objects are immutable value objects. just like
> the String literal "abc", or a Date. My rule should behave
> exactly like Person(name == "abc")
You should look into defining a domain specific language, as has been suggested
earlier.
> Ca
if
> they've changed or not.
>
> So, after this long winded spiel, here's my suggestion: get the rule(s) to
> work using "from" but also try inserting the Quantity object in working
> memory. If you're processing enough data with the rules you will notic
g if they've changed or not.
So, after this long winded spiel, here's my suggestion: get the rule(s) to work
using "from" but also try inserting the Quantity object in working memory. If
you're processing enough data with the rules you will notice a difference.
--- O
> knowledge engineer. There are many complexities to consider when
> authoring rules. If a domain expert is stymied by something as simple as
> initializing the working memory properly they're going to have a steep
> learning curve.
>
> --- On Wed, 2/25/09, David Boaz wrote:
&
en authoring
rules. If a domain expert is stymied by something as simple as initializing
the working memory properly they're going to have a steep learning curve.
--- On Wed, 2/25/09, David Boaz wrote:
> From: David Boaz
> Subject: Re: [rules-users] Creating objects in WHEN clau
t; or some such) and set focus to
> that
> > group when starting.
> >
> > rule
> > agenda-group "initialization"
> > no-loop true
> > when
> > //No condition
> > then
> > insert(new Quantity("m", 2));
> > drools.se
_your_next_group_is");
> end
>
> --- On Wed, 2/25/09, Mauricio Salatino wrote:
>
>> From: Mauricio Salatino
>> Subject: Re: [rules-users] Creating objects in WHEN clause
>> To: "Rules Users List"
>> Date: Wednesday, February 25, 2009, 11:40 A
whatever_your_next_group_is");
end
--- On Wed, 2/25/09, Mauricio Salatino wrote:
> From: Mauricio Salatino
> Subject: Re: [rules-users] Creating objects in WHEN clause
> To: "Rules Users List"
> Date: Wednesday, February 25, 2009, 11:40 AM
> How about :
> WHE
How about :
WHEN
$quantity: Quantity(value == 2, unit == "m")
$Person($height == $quantity:)
then
...
On Wed, Feb 25, 2009 at 2:27 PM, David Boaz wrote:
>
> In my application, we often compare the fact's field values against a known
> object. For example:
> WHEN person(height> new Quantity(2,
In my application, we often compare the fact's field values against a known
object. For example:
WHEN person(height> new Quantity(2, "m")) // the height is greater than 2
meters.
will DROOLS create a "singleton" Quantity object, or will it create one
object for each fact evaluation?
We consider u
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