3:05 a.m.
Hi,
We have a requirement where we need to have our own rule builder and
we use drools as our runtime engine. We are using drools descr API to
create the drl's as we find it more convenient than using a template
engine. In the new release there is warning that ' usage of the descr
package is discouraged '. Is this package bound to change in the
future releases? or will this package be removed completely?
Please clarify us in this regard to maintain compatibility with future
drools releases.
Thanks,
sudhir.
4:07 a.m.
Aren't you confusing things?
Using a template engine is a step that creates DRL (i.e., the Drools rule
source
language) text from templates and actual parameters to fill in formal
template parameters. The "interface" of an alternative generator is
defined by the DRL language; not by the org.drools.lang.descr package.
Generated text can be compiled by the Drools compiler, no matter how
it is created.
Do you really want to create the *compiled* form of rules packages?
-W
On 28 June 2010 09:05, Sudhir M <sudhir.cse(a)gmail.com> wrote:
Hi,
We have a requirement where we need to have our own rule builder and
we use drools as our runtime engine. We are using drools descr API to
create the drl's as we find it more convenient than using a template
engine. In the new release there is warning that ' usage of the descr
package is discouraged '. Is this package bound to change in the
future releases? or will this package be removed completely?
Please clarify us in this regard to maintain compatibility with future
drools releases.
Thanks,
sudhir.
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11:31 a.m.
Sudhir,
The warning is just to make clear that this is an "internal" API, that
might change in the future. We do not foresee the removal of the package
completely, as it is our "internal canonical model", but with the addition
of features from version to version it will grow and you may need to do some
changes in your integration code when updating your application to new
drools versions.
Using a template engine to generate DRL is a solution that increases
"runtime cost", but decreases maintenance cost when upgrading from version
to version.
Decision on what fits better your use case is completely yours.
Edson
2010/6/28 Sudhir M <sudhir.cse(a)gmail.com>
Hi,
We have a requirement where we need to have our own rule builder and
we use drools as our runtime engine. We are using drools descr API to
create the drl's as we find it more convenient than using a template
engine. In the new release there is warning that ' usage of the descr
package is discouraged '. Is this package bound to change in the
future releases? or will this package be removed completely?
Please clarify us in this regard to maintain compatibility with future
drools releases.
Thanks,
sudhir.
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rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
5142
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2 comments
3 participants
participants (3)
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Edson Tirelli -
Sudhir M -
Wolfgang Laun