Hi all! I’ve got a really basic doubt… I’ve read several documentation regarding it but I think I need some advice here… Imagine that I have an event: *declare* A @role( event ) @expires( 1h ) *end* On my Java code, I call “fireAllRules()” method every time that I put an event into the working memory. My doubt: When does event A expires? a) One hour after it was inserted (time-based and without the “fireAllRules()” method call) or b) by calling “fireAllRules()” method (event-based) T.I.A. Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Edison, first of all, thanks for your quick reply! Those initial words caught my attention, although: “By default, Drools does not start any internal thread”… What do you mean “by default”? I know there are ways to force the event to be expired but I’m looking for a solution that doesn’t involve to write new rules. For example, I’m using this kind of solution: *declare* A @role( event ) @expires( 1h ) *end* *rule* "internal - expiring A" timer(*int*:1h) *when* $a : A() *from* entry-point "incoming" *then* *retract*($a); *end* Although this solution works (from Drools 5.1), I’m forced to write a rule to expire an event that’s supposed to be expired initially. There’s a simpler way to do this? I’m thinking correctly? Once again, thanks! Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ *From:* rules-users-bounces(a)lists.jboss.org [mailto: rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Edson Tirelli *Sent:* quarta-feira, 16 de Março de 2011 18:38 *To:* Rules Users List *Subject:* Re: [rules-users] Basic doubt regarding Drools Fusion - @expires By default, Drools does not start any internal thread, so that you can embed it in non-multithread applications or in JEE containers. That means that the actual release of events in such cases depends on triggers. In your example, after 1h has passed, whenever something happens to the session (a new rule is fired, a new event is inserted, the session clock is advanced, etc), the event will be expired as part of the action. Remember though that it only happens when running in STREAM mode. In CLOUD mode, event garbage collection does not make sense and will not happen. Edson 2011/3/16 Makewise - Vitor Rui Mendonça <Vitor.Mendonca(a)brisa.pt&gt; Hi all! I’ve got a really basic doubt… I’ve read several documentation regarding it but I think I need some advice here… Imagine that I have an event: *declare* A @role( event ) @expires( 1h ) *end* On my Java code, I call “fireAllRules()” method every time that I put an event into the working memory. My doubt: When does event A expires? a) One hour after it was inserted (time-based and without the “fireAllRules()” method call) or b) by calling “fireAllRules()” method (event-based) T.I.A. Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ _______________________________________________ rules-users mailing list 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 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

I forgot to mention that I’m running in stream mode, yes J I’m having problems regarding event expiration: I define events with @expires(1h) but they won’t disappear, I had to write some rules to force the expiration. To keep short a long history… J · I put transactions into entry-point “incoming” · I’ve got rules that create a new event (defined in .drl file) when a transaction is inserted in the working memory. That event has an expire time (1h) · But I’ve notice that the created event will never go away *// transaction inserted into working memory through insertFact()* *declare* Transaction @role( event ) @expires( 1h ) *end* * * *// event created when working memory receives transaction* *declare* ExampleTransaction @role( event ) @expires( 1h ) value: *int* transaction: Transaction *end* * * *// rule to create event * *rule* "new example transaction" *when* $transaction : Transaction() over window:time(1h) *from* entry-point "incoming" *then* ExampleTransaction exampleTransaction = *new* ExampleTransaction(); exampleTransaction.setValue(0); exampleTransaction.setTransaction($transaction); *insert*( exampleTransaction ); *end* Maybe submitting a new issue with a JUnit test would be nice, right? J Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ *From:* rules-users-bounces(a)lists.jboss.org [mailto: rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Edson Tirelli *Sent:* quinta-feira, 17 de Março de 2011 13:41 *To:* Rules Users List *Subject:* Re: [rules-users] Basic doubt regarding Drools Fusion - @expires You lost me. Why are you defining a rule to retract your event? If you are running in STREAM mode, @expires will take care of the retraction for you automatically... Regarding threads, I said by default because there is an experimental feature that makes drools start internal threads, but that is not production ready yet. Edson 2011/3/17 Makewise - Vitor Rui Mendonça <Vitor.Mendonca(a)brisa.pt&gt; Edison, first of all, thanks for your quick reply! Those initial words caught my attention, although: “By default, Drools does not start any internal thread”… What do you mean “by default”? I know there are ways to force the event to be expired but I’m looking for a solution that doesn’t involve to write new rules. For example, I’m using this kind of solution: *declare* A @role( event ) @expires( 1h ) *end* *rule* "internal - expiring A" timer(*int*:1h) *when* $a : A() *from* entry-point "incoming" *then* *retract*($a); *end* Although this solution works (from Drools 5.1), I’m forced to write a rule to expire an event that’s supposed to be expired initially. There’s a simpler way to do this? I’m thinking correctly? Once again, thanks! Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ *From:* rules-users-bounces(a)lists.jboss.org [mailto: rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Edson Tirelli *Sent:* quarta-feira, 16 de Março de 2011 18:38 *To:* Rules Users List *Subject:* Re: [rules-users] Basic doubt regarding Drools Fusion - @expires By default, Drools does not start any internal thread, so that you can embed it in non-multithread applications or in JEE containers. That means that the actual release of events in such cases depends on triggers. In your example, after 1h has passed, whenever something happens to the session (a new rule is fired, a new event is inserted, the session clock is advanced, etc), the event will be expired as part of the action. Remember though that it only happens when running in STREAM mode. In CLOUD mode, event garbage collection does not make sense and will not happen. Edson 2011/3/16 Makewise - Vitor Rui Mendonça <Vitor.Mendonca(a)brisa.pt&gt; Hi all! I’ve got a really basic doubt… I’ve read several documentation regarding it but I think I need some advice here… Imagine that I have an event: *declare* A @role( event ) @expires( 1h ) *end* On my Java code, I call “fireAllRules()” method every time that I put an event into the working memory. My doubt: When does event A expires? a) One hour after it was inserted (time-based and without the “fireAllRules()” method call) or b) by calling “fireAllRules()” method (event-based) T.I.A. Vítor Mendonça Moreira *Analista / Programador Direcção de Investigação e Desenvolvimento* Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq. 2500 - 206 - Caldas da Rainha Tel: (+351) 262 832 196 Fax: (+351) 262 186 455 Web: www.makewise.pt Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com> ------------------------------ Declaração: A informação contida nesta mensagem, e os ficheiros anexos, é privilegiada e confidencial, destinando-se exclusivamente ao(s) destinatário(s).Se não é o destinatário (ou o responsável pela sua entrega ao destinatário) e recebeu a mesma por engano, fica notificado que é estritamente proibido reproduzir, guardar ou distribuir toda ou qualquer parte desta mensagem e ficheiros anexos.Por favor reencaminhe a mensagem para o responsável pelo seu envio ou contacte-nos por telefone e elimine a mensagem e ficheiros anexos do seu computador,sem os reproduzir. Disclaimer: The information contained in this message, and any files attached, is privileged and confidential, and intended exclusively for the included addresses.If you are not the intended recipient (or the person responsible for delivering to the intended recipient) and received this message by mistake, be aware that copy, storage, distribution or any other use of all or part of this message and the files attached is strictly prohibited. Please notify the sender by reply e-mail or contact us by telephone and delete this message and the files attached, without retaining a copy. ------------------------------ _______________________________________________ rules-users mailing list 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 _______________________________________________ rules-users mailing list 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 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users