Hi, As I am very new to Drools, could you please tell me what is the difference between adding a $ at the beginning of a variable and without $. For example: rule "validate holiday" when *$h1 : Holiday( `when` == "july" )* then ...... end and rule "validate holiday" when *h1 : Holiday( `when` == "july" )* then ...... end Regards, Sudipta Deb -- View this message in context: http://drools.46999.n3.nabble.com/Difference-between-adding-at-the-beginn... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

No difference, it was/is just used a lot in examples and advice given on here so has sort of become an unofficial standard. Some argue the presence of "$" helps identify bindings when scanning DRL. On 15 January 2013 20:04, suddeb <sudipta.deb(a)gmail.com&gt; wrote: Hi, As I am very new to Drools, could you please tell me what is the difference between adding a $ at the beginning of a variable and without $. For example: rule "validate holiday" when *$h1 : Holiday( `when` == "july" )* then ...... end and rule "validate holiday" when *h1 : Holiday( `when` == "july" )* then ...... end Regards, Sudipta Deb -- View this message in context: http://drools.46999.n3.nabble.com/Difference-between-adding-at-the-beginn... Sent from the Drools: User forum 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