Examples with FactHandle org.kie.api.runtime.rule.FactHandle used on opensource projects

Example 36 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class TruthMaintenanceTest method testTMSWithLateUpdate.

@Test(timeout = 10000)
public void testTMSWithLateUpdate() {
    // JBRULES-3416
    String str = "" + "package org.drools.compiler.test;\n" + "\n" + "import org.drools.compiler.Father;\n" + "import org.drools.compiler.YoungestFather;\n" + "\n" + "rule \"findMarriedCouple\"\n" + "when\n" + "    $h: Father()\n" + "    not Father(father == $h)\n" + "then\n" + "    insertLogical(new YoungestFather($h));\n" + "end";
    KieBase kbase = loadKnowledgeBaseFromString(str);
    KieSession kSession = createKnowledgeSession(kbase);
    Father abraham = new Father("abraham");
    Father bart = new Father("bart");
    Collection<? extends Object> youngestFathers;
    bart.setFather(abraham);
    FactHandle abrahamHandle = kSession.insert(abraham);
    FactHandle bartHandle = kSession.insert(bart);
    kSession.fireAllRules();
    youngestFathers = kSession.getObjects(new ClassObjectFilter(YoungestFather.class));
    assertEquals(1, youngestFathers.size());
    assertEquals(bart, ((YoungestFather) youngestFathers.iterator().next()).getMan());
    Father homer = new Father("homer");
    FactHandle homerHandle = kSession.insert(homer);
    homer.setFather(abraham);
    // If we do kSession.update(homerHandle, homer) here instead of after bart.setFather(homer) it works
    // But in some use cases we cannot do this because fact fields are actually called
    // while the facts are in an invalid temporary state
    bart.setFather(homer);
    // Late update call for homer, after bart has been changed too, but before fireAllRules
    kSession.update(homerHandle, homer);
    kSession.update(bartHandle, bart);
    kSession.fireAllRules();
    youngestFathers = kSession.getObjects(new ClassObjectFilter(YoungestFather.class));
    assertEquals(1, youngestFathers.size());
    assertEquals(bart, ((YoungestFather) youngestFathers.iterator().next()).getMan());
// System.err.println(reportWMObjects(kSession));
}

Example 37 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class BasicUpdateTest method updateTheOnlyFactTest.

@Test
public void updateTheOnlyFactTest() {
    final Person person = new Person("George", 18);
    final FactHandle factPerson = ksession.insert(person);
    assertThat(ksession.getObjects()).hasSize(1);
    assertThat(ksession.getObjects().iterator().next()).isInstanceOf(Person.class);
    Person personToBeVerified = (Person) ksession.getObjects().iterator().next();
    verifyPerson(person, personToBeVerified, 18, "George", true);
    ksession.update(factPerson, new Person("Henry", 21));
    verifyFactsPresentInSession(1, Person.class);
    personToBeVerified = (Person) ksession.getObjects().iterator().next();
    verifyPerson(person, personToBeVerified, 21, "Henry", false);
}

Example 38 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class BasicUpdateTest method updateWithDifferentClassGetQueryResultsTest.

@Test
public void updateWithDifferentClassGetQueryResultsTest() {
    final Person person = new Person("George", 18);
    final FactHandle fact = ksession.insert(person);
    verifyFactsWithQuery(Person.class, "persons", person);
    final Cheese cheese = new Cheese("Camembert", 2);
    ksession.update(fact, cheese);
    verifyWithQueryNoPersonsPresentInFacts();
    verifyFactsPresentInSession(1, Cheese.class);
    Cheese cheeseToBeVerified = (Cheese) ksession.getObjects().iterator().next();
    verifyCheese(cheeseToBeVerified, 2, "Camembert");
    cheeseToBeVerified = verifyFactPresentInSession(fact, Cheese.class);
    verifyCheese(cheeseToBeVerified, 2, "Camembert");
}

Example 39 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class BasicUpdateTest method updateWithNullTest.

@Test(expected = NullPointerException.class)
public void updateWithNullTest() {
    final Person person = new Person("George", 18);
    final FactHandle factPerson = ksession.insert(person);
    verifyFactsPresentInSession(1, Person.class);
    ksession.update(factPerson, null);
}

Example 40 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class BasicUpdateTest method updateFireRulesTest.

@Test
public void updateFireRulesTest() {
    final Person george = new Person("George", 17);
    final Person henry = new Person("Henry", 25);
    final FactHandle georgeFact = ksession.insert(george);
    ksession.insert(henry);
    verifyFactsWithQuery(Person.class, "persons", george, henry);
    final List<Person> drivers = new ArrayList<>();
    ksession.setGlobal("drivers", drivers);
    assertThat(ksession.fireAllRules()).isEqualTo(1);
    verifyList(drivers, george, henry);
    george.setAge(18);
    ksession.update(georgeFact, george);
    verifyFactsWithQuery(Person.class, "persons", george, henry);
    assertThat(ksession.fireAllRules()).isEqualTo(1);
    verifyList(drivers, null, george, henry);
}