Re: [rules-users] Object insertion on runtime

I suspect your use of lock-on-active. Expert's documentation states: "Whenever ... an agenda-group receives the focus, any rule within that group that has lock-on-active set to true will not be activated any more; irrespective of the origin of the update, the activation of a matching rule is discarded". Both rules are in the default MAIN agenda group so when the first inserts a new Price the update to WM (insert in your case) is not visible to the other rule. Inserting a new Price before calling fireAllRules or commenting out the price constraint in the LHS alters the Facts\Patterns needing to be matched for activation to occur. So, try removing lock-on-active (or making the two rules in different agenda groups). With kind regards, Mike On 8 March 2011 09:53, FrankVhh wrote: > Hi all, > > Since yesterday, I am having a problem with reading inserted objects from > memory. I don't know why it does not go as planned, because it should be > quite straightforward. It is getting boring to stare at the code, so > maybe > one of you can detect an error. > > There are 2 kinds of rules. One kind inserts price objects into working > memory (as in example 1). THe other kind detects whether the price exists > and adapts it to a product (as in example 2). > > Example 1 seems to work, but the engine does not seem to recognize them > as > a > Price object. All original price attributes of the products remain > unchanged > unless: > - I manually insert a Prce object before calling fireAllRules() > or > - Checking for an existing price is commented out in the LHS > > Removing constraints from $price (just checking for existance of a price) > does not help. > > Any idea what has been going wrong? > > Thanks in advance. > > ==============Example 1================= > rule "Prices_17" > > lock-on-active true > when > then > Price $price = new Price(); > $price.setName("Blue autumn"); > $price.setPrice(6); > insert($price); > System.out.println("Price " + $price.getName() + " > inserted"); > end > =============Example of usage========================= > > rule "Products_36" > > lock-on-active true > when > $product: Product(colour == "Blue") > Season(season == Season.AUTUMN) > $price: Price(name == "Blue autumn") > then > $product.setPrice($price.getPrice()); > update($product); > System.out.println("Rule executed"); > end > =================================================== > > -- > View this message in context: > http://drools-java-rules-engine.46999.n3.nabble.com/Object-insertion-on-r... > Sent from the Drools - User mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users