9:04 p.m.
This should probably be in the users list, not dev. All of that information
is available in the PackageDesc object. For example,
DrlParser parser = new DrlParser();
InputStreamReader reader = new InputStreamReader(
this.getClass().getResourceAsStream( "Misc3.drl" ) );
PackageDescr pkg = parser .parse( reader );
pkg.getGlobals();
pkg.getRules();
etc.
On Mon, Feb 23, 2009 at 9:44 PM, nopea joki <nopea.joki(a)gmail.com> wrote:
Hi,
I would like to get all the classes used for Facts in the rules from
Package like getting global variable information from package.
Is it possible to have such information?
Regards,
nj
_______________________________________________
rules-dev mailing list
rules-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev
10:45 p.m.
New subject: [rules-dev] How to get Fact's type from rule package?
David,
Thank you for the reply.
I checked the PackageDescr and RuleDescr classes, but there seems no direct
methods which would return the fact classes used in the rule.
for instance if we have a rule like:
rule rule1
when
Person(name = "qq")
Driver(name = "aa")
then ... end
from this rule, I want to get [Person, Fact].
In org.drools.rule.Rule class, there is a getDeclaration(), this returns
some type information if variable is associated with Fact class, e.g, $p:
Person.
But in the above case, we just get empty list of declarations.
This kind of information is useful when we need to provide a GUI for given
rules.
Do you have more specific suggestion for this?
Regards,
nj
On Tue, Feb 24, 2009 at 12:04 PM, David Sinclair <
dsinclair(a)chariotsolutions.com> wrote:
This should probably be in the users list, not dev. All of that
information
is available in the PackageDesc object. For example,
DrlParser parser = new DrlParser();
InputStreamReader reader = new InputStreamReader(
this.getClass().getResourceAsStream( "Misc3.drl" ) );
PackageDescr pkg = parser .parse( reader );
pkg.getGlobals();
pkg.getRules();
etc.
On Mon, Feb 23, 2009 at 9:44 PM, nopea joki <nopea.joki(a)gmail.com> wrote:
> Hi,
> I would like to get all the classes used for Facts in the rules from
> Package like getting global variable information from package.
> Is it possible to have such information?
>
> Regards,
> nj
>
> _______________________________________________
> rules-dev mailing list
> rules-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-dev
>
>
10:53 p.m.
New subject: [rules-dev] How to get Fact's type from rule package?
Take a look at the verifier module.
On Tue, Feb 24, 2009 at 4:45 PM, nopea joki <nopea.joki(a)gmail.com> wrote:
David,
Thank you for the reply.
I checked the PackageDescr and RuleDescr classes, but there seems no
direct methods which would return the fact classes used in the rule.
for instance if we have a rule like:
rule rule1
when
Person(name = "qq")
Driver(name = "aa")
then ... end
from this rule, I want to get [Person, Fact].
In org.drools.rule.Rule class, there is a getDeclaration(), this returns
some type information if variable is associated with Fact class, e.g, $p:
Person.
But in the above case, we just get empty list of declarations.
This kind of information is useful when we need to provide a GUI for given
rules.
Do you have more specific suggestion for this?
Regards,
nj
On Tue, Feb 24, 2009 at 12:04 PM, David Sinclair <
dsinclair(a)chariotsolutions.com> wrote:
> This should probably be in the users list, not dev. All of that
> information is available in the PackageDesc object. For example,
>
> DrlParser parser = new DrlParser();
> InputStreamReader reader = new InputStreamReader(
> this.getClass().getResourceAsStream( "Misc3.drl" ) );
> PackageDescr pkg = parser .parse( reader );
>
> pkg.getGlobals();
> pkg.getRules();
>
> etc.
>
> On Mon, Feb 23, 2009 at 9:44 PM, nopea joki <nopea.joki(a)gmail.com> wrote:
>
>> Hi,
>> I would like to get all the classes used for Facts in the rules from
>> Package like getting global variable information from package.
>> Is it possible to have such information?
>>
>> Regards,
>> nj
>>
>> _______________________________________________
>> rules-dev mailing list
>> rules-dev(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>
>>
>
11:02 p.m.
New subject: [rules-dev] How to get Fact's type from rule package?
Nj,
The approach David is suggesting using the descriptors is a higher level
approach where anything that is written in DRL language is mapped one-to-one
in Descr classes, but as you already realized, Descr classes have most data
as non-compiled text. It is simpler, if working with text is ok for you.
If you want to dig deeper and use compiled stuff, keep in mind that you
will be using internal APIs, subject to change. Having said that, the Rule
object has a method getLHS() that will return the compiled LHS of a rule. It
is a logical tree, with nested objects. You need to walk this tree looking
for Pattern objects. Each Pattern object will have an Object Type that is
what you are looking for.
[]s
Edson
2009/2/24 nopea joki <nopea.joki(a)gmail.com>
David,
Thank you for the reply.
I checked the PackageDescr and RuleDescr classes, but there seems no
direct methods which would return the fact classes used in the rule.
for instance if we have a rule like:
rule rule1
when
Person(name = "qq")
Driver(name = "aa")
then ... end
from this rule, I want to get [Person, Fact].
In org.drools.rule.Rule class, there is a getDeclaration(), this returns
some type information if variable is associated with Fact class, e.g, $p:
Person.
But in the above case, we just get empty list of declarations.
This kind of information is useful when we need to provide a GUI for given
rules.
Do you have more specific suggestion for this?
Regards,
nj
On Tue, Feb 24, 2009 at 12:04 PM, David Sinclair <
dsinclair(a)chariotsolutions.com> wrote:
> This should probably be in the users list, not dev. All of that
> information is available in the PackageDesc object. For example,
>
> DrlParser parser = new DrlParser();
> InputStreamReader reader = new InputStreamReader(
> this.getClass().getResourceAsStream( "Misc3.drl" ) );
> PackageDescr pkg = parser .parse( reader );
>
> pkg.getGlobals();
> pkg.getRules();
>
> etc.
>
> On Mon, Feb 23, 2009 at 9:44 PM, nopea joki <nopea.joki(a)gmail.com> wrote:
>
>> Hi,
>> I would like to get all the classes used for Facts in the rules from
>> Package like getting global variable information from package.
>> Is it possible to have such information?
>>
>> Regards,
>> nj
>>
>> _______________________________________________
>> rules-dev mailing list
>> rules-dev(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>
>>
>
_______________________________________________
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--
Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @ www.jboss.com
5533
days inactive
5533
days old
3 comments
3 participants
participants (3)
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David Sinclair -
Edson Tirelli -
nopea joki