Is there any way to interrogate exactly, as in get a printed representation of what goes on under the hood for one of these type of declarations ? As an example: (as per the docs) for a declared type like the following: declare Person *firstName : String @key* *lastName : String @key* age : int end The compiler will implicitly generate 3 constructors: one without parameters, one with the @key fields, and one with all fields. Person() // parameterless constructor Person( String firstName, String lastName ) Person( String firstName, String lastName, int age ) ...creating an instance using the @key constructor /Person person = new Person( "John", "Doe" );/ **************** So lets say I do the following: declare Here location: String @key end I understand that it does the above, but it *also* lets me do this as well: * Here here = new Here("kitchen"); System.out.println( here ); System.out.println( here.getLocation(); ); $lh : Here (location == "kitchen") System.out.println( "You are in the " + $lh.getLocation() );* And get ... *Here( location=kitchen ) kitchen You are in the kitchen* ... from various rules I've created ... so there is a lot going on under the hood, I just want to get a complete inventory of what that is and how I inspect it for more complex type declarations. Any ideas? -matt -- View this message in context: http://drools.46999.n3.nabble.com/key-declarations-for-a-type-What-s-unde... 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

I was looking for something along the lines of a method of inspecting the resulting code of any arbitrary @key declarations I might want to deploy. Is there such a way? -- View this message in context: http://drools.46999.n3.nabble.com/key-declarations-for-a-type-What-s-unde... 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

Drools bytecode generates these beans without generating java source code (if you are using the declare, not the data modeller). Having said that, it is very simple: declare Here location: String @key end Generates a java class roughly equivalent to: public class Here implements Serializable { private String location; public Here() {} public Here( String location ) { this.location = location; } public String getLocation() { return location; } public void setLocation(String location) { this.location = location; } // generates a toString() // generates a hashCode()/equals() method that use the location's hashcode()/equals() } I did this from memory, but it is pretty much all it does. Nothing complex there, just a javabean really. The difference to not using @key is that the hashCode()/equals() methods would not take "location" in consideration, and in this case, since there are no other attributes, would then rely on system identity. Edson On Wed, Feb 26, 2014 at 2:23 PM, profversaggi <profversaggi(a)gmail.com&gt;wrote: > I was looking for something along the lines of a method of inspecting the > resulting code of any arbitrary @key declarations I might want to deploy. > Is > there such a way? > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/key-declarations-for-a-type-What-s-unde... > 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 > -- Edson Tirelli Principal Software Engineer Red Hat Business Systems and Intelligence Group _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

But what if you now have 2 declare statements in which one defines itself in terms of the other ... // A room is also a thing declare Room extends Thing name : String @key end One would instantiate an object like this: Room room = new Room("office"); // A door is a pathway between two rooms declare Door extends Thing fromRoom : Room @key toRoom : Room @key end How would one instantiate an object of 'Door' ? On Wed, Feb 26, 2014 at 5:11 PM, Edson Tirelli <ed.tirelli(a)gmail.com&gt;wrote: > > Drools bytecode generates these beans without generating java source > code (if you are using the declare, not the data modeller). Having said > that, it is very simple: > > declare Here > location: String @key > end > > Generates a java class roughly equivalent to: > > public class Here implements Serializable { > private String location; > > public Here() {} > > public Here( String location ) { > this.location = location; > } > > public String getLocation() { return location; } > public void setLocation(String location) { this.location = location; } > > // generates a toString() > > // generates a hashCode()/equals() method that use the location's > hashcode()/equals() > } > > I did this from memory, but it is pretty much all it does. Nothing > complex there, just a javabean really. > > The difference to not using @key is that the hashCode()/equals() > methods would not take "location" in consideration, and in this case, since > there are no other attributes, would then rely on system identity. > > Edson > > > > > > On Wed, Feb 26, 2014 at 2:23 PM, profversaggi <profversaggi(a)gmail.com&gt;wrote: > >> I was looking for something along the lines of a method of inspecting the >> resulting code of any arbitrary @key declarations I might want to >> deploy. Is >> there such a way? >> >> >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/key-declarations-for-a-type-What-s-unde... >> 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 >> > > > > -- > Edson Tirelli > Principal Software Engineer > Red Hat Business Systems and Intelligence Group > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- ######################################################### Matthew R. Versaggi, President & CEO Versaggi Information Systems, Inc. Adjunct Professor of eBusiness DePaul University Email: mailto:matt@versaggi.com, ProfVersaggi(a)gmail.com M: 630-292-8422 LinkedIn: http://www.linkedin.com/in/versaggi ######################################################### _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Works as you'd exprect it - and here we go: declare Thing size : int end // A room is also a thing declare Room extends Thing name : String @key end // A door is a pathway between two rooms declare Door extends Thing fromRoom : Room @key toRoom : Room @key end rule "startup" when then Room kit = new Room("kitchen"); kit.setSize( 10 ); insert( kit ); Room off = new Room("office"); kit.setSize( 15 ); insert( off ); Door kitoff = new Door( kit, off ); insert( kitoff ); end Output: Door( size=0, fromRoom=Room( size=15, name=kitchen ), toRoom=Room( size=0, name=office ) ) connects Room( size=15, name=kitchen ) and Room( size=15, name=kitchen ) -W On 27/02/2014, Matthew Versaggi <profversaggi(a)gmail.com&gt; wrote: > But what if you now have 2 declare statements in which one defines itself > in terms of the other ... > > // A room is also a thing > declare Room extends Thing > name : String @key > end > > One would instantiate an object like this: > Room room = new Room("office"); > > > // A door is a pathway between two rooms > declare Door extends Thing > fromRoom : Room @key > toRoom : Room @key > end > > How would one instantiate an object of 'Door' ? > > > > On Wed, Feb 26, 2014 at 5:11 PM, Edson Tirelli <ed.tirelli(a)gmail.com&gt; > wrote: > >> >> Drools bytecode generates these beans without generating java source >> code (if you are using the declare, not the data modeller). Having said >> that, it is very simple: >> >> declare Here >> location: String @key >> end >> >> Generates a java class roughly equivalent to: >> >> public class Here implements Serializable { >> private String location; >> >> public Here() {} >> >> public Here( String location ) { >> this.location = location; >> } >> >> public String getLocation() { return location; } >> public void setLocation(String location) { this.location = location; >> } >> >> // generates a toString() >> >> // generates a hashCode()/equals() method that use the location's >> hashcode()/equals() >> } >> >> I did this from memory, but it is pretty much all it does. Nothing >> complex there, just a javabean really. >> >> The difference to not using @key is that the hashCode()/equals() >> methods would not take "location" in consideration, and in this case, >> since >> there are no other attributes, would then rely on system identity. >> >> Edson >> >> >> >> >> >> On Wed, Feb 26, 2014 at 2:23 PM, profversaggi >> <profversaggi(a)gmail.com&gt;wrote: >> >>> I was looking for something along the lines of a method of inspecting >>> the >>> resulting code of any arbitrary @key declarations I might want to >>> deploy. >>> Is >>> there such a way? >>> >>> >>> >>> -- >>> View this message in context: >>> http://drools.46999.n3.nabble.com/key-declarations-for-a-type-What-s-unde... >>> 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 >>> >> >> >> >> -- >> Edson Tirelli >> Principal Software Engineer >> Red Hat Business Systems and Intelligence Group >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > ######################################################### > Matthew R. Versaggi, President & CEO > Versaggi Information Systems, Inc. > Adjunct Professor of eBusiness DePaul University > Email: mailto:matt@versaggi.com, ProfVersaggi(a)gmail.com > M: 630-292-8422 > LinkedIn: http://www.linkedin.com/in/versaggi > ######################################################### >