BAEL-803: Backward Chaining with Drools - parent module (#2986)
* spring beans DI examples * fix-1: shortening examples * List of Rules Engines in Java * BAEL-812: Openl-Tablets example added * BAEL-812: artifacts names changed * BAEL-812: moving rule-engines examples to rule-engines folder * BAEL-812: removing evaluation article files * BAEL-812: folder renamed * BAEL-812: folder renamed * BAEL-812: pom.xml - parent added * BAEL-1027: Introduction to GraphQL - initial commit * BAEL-781: Explore the new Spring Cloud Gateway * BAEL-781: Fix UserService.java * BAEL-781: Fix user-service pom.xml * BAEL-781: remove eureka-server from the example * BAEL-781: modifying example * BAEL-803: Backward Chaining wih Drools * BAEL-803: pom.xml * BAEL-803: Backward Chaining with Drools - new example * BAEL-803: Backward Chaining with Drools - parent module * BAEL-803: Backward Chaining with Drools - parent module * BAEL-803: Backward Chaining with Drools - meta-inf/maven-fix * BAEL-803: Backward Chaining with Drools - drools parent module
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@ -1,7 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>drools-backward-chaining</artifactId>
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@ -17,7 +16,6 @@
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<properties>
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<runtime.version>6.4.0.Final</runtime.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.kie</groupId>
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@ -26,7 +24,6 @@
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</dependency>
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<dependency>
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<groupId>org.drools</groupId>
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<artifactId>drools-core</artifactId>
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<version>${runtime.version}</version>
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</dependency>
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<dependency>
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@ -21,13 +21,11 @@ public class BackwardChaining {
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KieSession ksession = kContainer.newKieSession("ksession-backward-chaining");
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ksession.setGlobal("result", result);
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ksession.insert(new Fact("Asia", "Planet Earth"));
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// ksession.insert(new Fact("China", "Asia"));
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// ksession.insert(new Fact("China", "Asia"));
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ksession.insert(new Fact("Great Wall of China", "China"));
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ksession.fireAllRules();
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return result;
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}
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}
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@ -0,0 +1,27 @@
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package com.baeldung
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import com.baeldung.drools.model.Fact;
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global com.baeldung.drools.model.Result result;
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dialect "mvel"
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query belongsTo(String x, String y)
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Fact(x, y;)
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or
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(Fact(z, y;) and belongsTo(x, z;))
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end
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rule "Great Wall of China BELONGS TO Planet Earth"
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when
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belongsTo("Great Wall of China", "Planet Earth";)
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then
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result.setValue("Decision one taken: Great Wall of China BELONGS TO Planet Earth");
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end
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rule "print all facts"
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when
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belongsTo(element, place;)
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then
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result.addFact(element + " IS ELEMENT OF " + place);
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end
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@ -8,6 +8,8 @@
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<artifactId>drools</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<packaging>pom</packaging>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
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