Databases
StackOverflow2013
Postsdbo
PORobocode Robot with Drools Expert
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PORobocode Robot with Drools Expert
    primarykey
    data
    text
    <p>i have a class assignment to create a Robot using Drools as an inference machine. however, most of my rules act strange since they don't fire for the class but fire for it's superclass. Something like this:</p> <p>my rules:</p> <pre><code>import the.manifested.Robotonikku; import the.manifested.Strategy; import the.manifested.Action; import robocode.TeamRobot; rule "One" when Robotonikku(); then System.out.println("roboto is present"); end rule "Two" when not Robotonikku(); then System.out.println("roboto is not present"); end rule "Three" when TeamRobot(); then System.out.println("robot is present"); end rule "Four" when not TeamRobot(); then System.out.println("robot is not present"); end </code></pre> <p>and as expected </p> <pre><code>public class Robotonikku extends TeamRobot </code></pre> <p>inside the run() method of Robotonikku that is called by Robocode's simulator I insert the instance as a fact:</p> <pre><code>ksession.insert(this) </code></pre> <p>i would expect that rules One and Three should fire but rule Two and Three are fired. Why it recognizes the instance as a TeamRobot and not as Robotonikku?</p> <p>thanks in advance.</p> <p>loading code:</p> <pre><code> String ficheroReglas = System.getProperty("robot.reglas", RobotDrools.FICHERO_REGLAS); kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(ResourceFactory.newClassPathResource(ficheroReglas, RobotDrools.class), ResourceType.DRL); if (kbuilder.hasErrors()) { System.err.println(kbuilder.getErrors().toString()); } kbase = KnowledgeBaseFactory.newKnowledgeBase(); kbase.addKnowledgePackages(kbuilder.getKnowledgePackages()); ksession = kbase.newStatefulKnowledgeSession(); </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USTúlio Caraciolo
    1. USTúlio Caraciolo
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PORobocode Robot with Drools Expert
      1. This table or related slice is empty.
      1. VTUpMod
    1. COit might be caused by the same thing. When I retrieve something from Drools with a Query and try to cast it ot the right class in java it gives me (how classloader works? can drools and robocode be using different class loaders?):Exception: java.lang.ClassCastException: drools_robocode.Action cannot be cast to drools_robocode.Action
      singulars
      1. PORobocode Robot with Drools Expert
      1. USTúlio Caraciolo
    2. COCould you please include the code showing how you are creating the knowledge base and session. Because I tried your DRL with the basic classes you described and rules one and three fire as expected.
      singulars
      1. PORobocode Robot with Drools Expert
      1. USPerception
    3. COHello Perception, in some machines it works. We couldn't figure out the difference (same drools, jdk, jre and robocode version numbers) except that the ones that work are 32-bit and the ones that doesn`t are 64-bit. not sure this is the case.
      singulars
      1. PORobocode Robot with Drools Expert
      1. USTúlio Caraciolo
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload