我创建了一个事实类型（CustomerFact），其中包含两个事实字段（年龄和奖金）。还使用工作台创建了一个示例规则。现在，我想注入一些测试值并检查规则是否被触发。我使用的是Eclipse IDE。
我能够在我的java代码中检索包名和在workbench中创建的规则。但是，我可以获取任何事实字段。 GetFields总是返回一个空列表，而它应该返回2个字段。有没有替代方案？我只想设置事实类型的字段，看看规则是否被触发。任何帮助都非常感谢。
package org.demo.cityproject;
/**
* This class was automatically generated by the data modeler tool.
*/
public class CustomerFact implements java.io.Serializable
{
static final long serialVersionUID = 1L;
@org.kie.api.definition.type.Key
private int age;
@org.kie.api.definition.type.Key
private int bonus;
public CustomerFact()
{
}
public int getAge()
{
return this.age;
}
public void setAge(int age)
{
this.age = age;
}
public int getBonus()
{
return this.bonus;
}
public void setBonus(int bonus)
{
this.bonus = bonus;
}
public CustomerFact(int age, int bonus)
{
this.age = age;
this.bonus = bonus;
}
@Override
public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
org.demo.cityproject.CustomerFact that = (org.demo.cityproject.CustomerFact) o;
if (age != that.age)
return false;
if (bonus != that.bonus)
return false;
return true;
}
@Override
public int hashCode()
{
int result = 17;
result = 31 * result + age;
result = 31 * result + bonus;
return result;
}
}
public static void main(String[] args)
{
String url = "http://localhost:8080/kie-drools-wb-distribution-wars-6.2.0.Final-jboss-as7/maven2/Project1/org/demo/CityProject/1.0/CityProject-1.0.jar";
ReleaseIdImpl releaseId = new ReleaseIdImpl("org.demo", "CityProject", "LATEST");
KieServices kieServices = KieServices.Factory.get();
kieServices.getResources().newUrlResource(url);
KieContainer kieContainer = kieServices.newKieContainer(releaseId);
KieScanner kieScanner = kieServices.newKieScanner(kieContainer);
kieScanner.scanNow();
Scanner scanner = new Scanner(System.in);
System.out.println("kieContainer.getKieBaseNames() "+kieContainer.getKieBaseNames());
KieSession newKieSession =kieContainer.newKieSession("session1");
KieBase lKieBase=newKieSession.getKieBase();
System.out.println("lPackage "+lKieBase.getKiePackages());
KiePackage lPackage=lKieBase.getKiePackage("org.demo.cityproject");
System.out.println("lPackage FactTypes: "+lPackage.getFactTypes());
for(FactType lFact:lPackage.getFactTypes())
{
System.out.println("lFacts: "+lFact.getName());
System.out.println("lFacts Fields: "+lFact.getFields());
}
}
22:58:28.998 [main] DEBUG o.d.c.k.b.impl.KieRepositoryImpl - KieModule Lookup. ReleaseId org.demo:CityProject:LATEST was not in cache, checking maven repository
22:58:37.430 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:37.743 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:39.455 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:39.503 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
22:58:39.503 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
22:58:39.503 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
22:58:41.744 [main] DEBUG o.e.a.i.i.DefaultDependencyCollector - Dependency collection stats: {ConflictMarker.analyzeTime=0, ConflictMarker.markTime=0, ConflictMarker.nodeCount=1, ConflictIdSorter.graphTime=0, ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=1, ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=0, ConflictResolver.conflictItemCount=1, DefaultDependencyCollector.collectTime=32, DefaultDependencyCollector.transformTime=15}
22:58:42.230 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:42.230 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:42.246 [main] DEBUG o.e.a.i.i.DefaultDependencyCollector - Dependency collection stats: {ConflictMarker.analyzeTime=0, ConflictMarker.markTime=0, ConflictMarker.nodeCount=1, ConflictIdSorter.graphTime=0, ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=0, ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=0, ConflictResolver.conflictItemCount=0, DefaultDependencyCollector.collectTime=0, DefaultDependencyCollector.transformTime=0}
22:58:47.596 [main] INFO o.d.c.k.b.impl.KieRepositoryImpl - KieModule was added: ZipKieModule[releaseId=org.demo:CityProject:1.0,file=C:\Users\USER\.m2\repository\org\demo\CityProject\1.0\CityProject-1.0.jar]
22:58:47.957 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:47.957 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:47.957 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:48.426 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:48.442 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:48.457 [main] DEBUG o.e.a.i.i.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for C:\Users\USER\.m2\repository
22:58:48.457 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
22:58:48.457 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
22:58:48.457 [main] DEBUG o.e.a.i.i.DefaultUpdateCheckManager - Skipped remote request for org.demo:CityProject/maven-metadata.xml, locally installed metadata up-to-date.
kieContainer.getKieBaseNames() [KnowledgeBaseALL]
22:58:50.532 [main] DEBUG o.drools.core.impl.KnowledgeBaseImpl - Starting Engine in PHREAK mode
lPackage [[Package name=org.demo.cityproject]]
lPackage FactTypes: [ClassDefinition{className='org.demo.cityproject.CustomerFact', superClass='java.lang.Object', interfaces=[java.io.Serializable], definedClass=class org.demo.cityproject.CustomerFact, traitable=null, abstract=false, fields={}, annotations=null}]
lFacts: org.demo.cityproject.CustomerFact
**lFacts Fields: []**
正如您在输出中看到的那样，事实字段是空的。
答案 0 :(得分：0)
相当令人失望的情况是，有两种甚至三种FactType：
方法getFactTypes不返回＃3。方法getFields返回＃2的空列表。
答案 1 :(得分：0)
最后我找到了答案。这些字段可以通过反射来调用。 以下是规则的触发方式
for(FactType lFct:lusedpackage.getFactTypes())
{
// System.out.println("Customer class "+lFct.getFactClass());
**Constructor constructor=lFct.getFactClass().getConstructor(String.class,java.math.BigInteger.class);**
**Object s1=constructor.newInstance(lcity,lcustomerID);**
//System.out.println("constructor "+constructor);
//System.out.println("Object "+s1);
**Method lCustID=lFct.getFactClass().getMethod("getCustomerID");**
System.out.println("*************************************************************");
System.out.println("Customer value before firing the rule: "+ lCustID.invoke(s1));
**Method setCity = lFct.getFactClass().getMethod("getCity");**
System.out.println("City value before firing the rule: "+ setCity.invoke(s1));
//System.out.println("method "+lCustID);
System.out.println("*************************************************************");
newKieSession.insert(s1);
newKieSession.fireAllRules();
System.out.println("Customer value after firing the rule: "+ **lCustID.invoke(s1)**);
System.out.println("City value after firing the rule: "+ setCity.invoke(s1));
System.out.println("*************************************************************");
}