Writing JAVA functions in [when] condition of the dsl file
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We can write the Java functions in [then] condition of the dsl file.
Is it possible to write JAVA functions / JAVA kind of coding in the [when]
condition of dsl file?
eg: [when] for(int i = 0; i < 3; i++) { System.out.println(i); }
[then] Log "{message}"
--
View this message in context:
http://www.nabble.com/Writing-JAVA-functions-in--when--condition-of-the-d...
Sent from the drools - user mailing list archive at Nabble.com.
from what I understand, in the when clause you can only have predicates.
So, you can create a function that does that and somehow returns a boolean
and then evaluate the boolean to be true
using eval.
-Krishnan.
On 5/23/07, Rajesh.Sachin10 <rajesh_sachin10(a)yahoo.co.in> wrote:
We can write the Java functions in [then] condition of the dsl file.
Is it possible to write JAVA functions / JAVA kind of coding in the [when]
condition of dsl file?
eg: [when] for(int i = 0; i < 3; i++) { System.out.println(i); }
[then] Log "{message}"
--
View this message in context:
http://www.nabble.com/Writing-JAVA-functions-in--when--condition-of-the-d...
Sent from the drools - user mailing list archive at Nabble.com.
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--
Sivaramakrishna Iyer Krishnan (Anand)
Never assume the obvious is true.
- William Safire
Rules are supposed to be declarative in nature. You should never need to
add control statements, neither to the LHS ("when"), nor to the RHS
("then"), although, the RHS being a java code block allows you to do it...
but it is usually code smell...
Think about what you are doing and check if you are not trying to use
drools as a scripting language...
Following may help:
http://markproctor.blogspot.com/2007/03/writing-better-rules.html
[]s
Edson
2007/5/23, Rajesh.Sachin10 <rajesh_sachin10(a)yahoo.co.in>:
We can write the Java functions in [then] condition of the dsl file.
Is it possible to write JAVA functions / JAVA kind of coding in the [when]
condition of dsl file?
eg: [when] for(int i = 0; i < 3; i++) { System.out.println(i); }
[then] Log "{message}"
--
View this message in context:
http://www.nabble.com/Writing-JAVA-functions-in--when--condition-of-the-d...
Sent from the drools - user mailing list archive at Nabble.com.
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