Hi Michael,
Thank you for your reply~
Now, I understand some mechanism of building dynamic class.
Back to my question,
if I understand correct, those methods you mentioned is to add a drl
file(exist) to the knowledgeBase dynamically, right?
But how about the file?
I mean if I need to write
You don't need a file, you need a String (not to say you couldn't use a
File if you really, really wanted - just that you don't have to).
Other than the Fluent API already mentioned there is no Drools API to
construct a DRL String. Read the manual, understand *your* data and build
DRL applicable.
Thank you ~
I will learn the documentation more.
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Sorry, I forget to mention one thing.
What's really difficult for me is to translate the AND,OR(Condition 1
AND Condition 2 OR Condition 3) to the drool.
Because someone will send the request with the expression(Condition 1 AND
Condition 2 OR Condition 3) to me. For each request the
A (dynamic) request with a logical expression that is to be evaluated
as
a rule is very much like a (dynamic) SQL query to be evaluated on a
database.
Are you sure that Drools is the right platform?
If someone wants to send a logical expression in a formal language of
their
own, you'll have to
Thank your for your reply~
I am developing the Identity and Access management. I have finished the
basic requirement, but the pre-condition part is what I am doing. The
website sends the pre-condition(like what IP address or the time period can
user access) that user sets. The pre-conditions are
Thank your for your reply~
I am developing the Identity and Access management. I have finished the
basic requirement, but the pre-condition part is what I am doing. The
website sends the pre-condition(like what IP address or the time period can
user access) that user sets. The pre-conditions
Hi~
Do you have any example about using stringBuilder?
Cheers
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Yes.
If the data defines the rules then there are numerous options:-
- Construct a DRL String yourself and pass this to a KnowledgeBuilder
- Use the fluent API to build rules programmatically
- Construct an XLS decision table using your favourite XLS (Java) API
and look at
Thanks for your reply.
Sorry, I am not quite clear about your first option.
What's the meaning of 'Construct a DRL String'?
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Hi Michael,
Do you have a link to the Fluent API documentation? I wanted to answer to
this question and couldn't find the link anywhere.
Thanks,
Leo.
2012/2/24 Michael Anstis michael.ans...@gmail.com
Yes.
If the data defines the rules then there are numerous options:-
- Construct a DRL
Is it from JBPM or ?
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___
rules-users
Quite simply, use a StringBuilder and create the DRL you need from the data
you receive.
@Leonardo, erm, erm... no. TBH I thought I'd be able to Google for it.. but
no luck. Edson? Is there anything - or am I promoting something I shouldn't
;)
On 24 February 2012 16:43, shawn
Thank you~
Does it mean I have to write a file in java and saved it as .drl?
fluent API is in jbpm, right?
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1) No you don't have to save it; just use one of the overloaded methods on
KnowledgeBuilder that takes a StringReader, or String or something else
similar.
2) I understand there to be one for Drools Expert too, which I'd expect to
be in one of the drools-xxx JARs however am having trouble finding
Thanks a lot~
Looking forward to hearing from you.
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The reason it is not in the manual yet is because it was not promoted
to the public API yet. Nevertheless, you can use it, but be aware that
there might still be changes on it from version to version until it is
promoted to the public API. I am hoping Mark will give me the go ahead to
make it
There is one (1) sentence and a dozen (12) lines of example in the
section about What is New and Noteworhty in Drools 5.2.0 in the
Introduction manual. Given that this nano-documentation doesn't tell
you what to do with the resulting PackageDescr and that this fluent
API is part of the unstable
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