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

Example 81 with FactHandle

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

the class ExtendsTest method testDeclareInheritance.

@Test
public void testDeclareInheritance() throws Exception {
    String s1 = "package org.drools;\n" + "import org.drools.compiler.integrationtests.ExtendsTest.*;\n" + "\n" + "declare A \n" + " @role( event )" + " @typesafe( false )\n" + "end\n" + "" + "declare C @role( event ) @typesafe( false ) end \n" + "" + "rule R \n" + "when " + "   $x : C( this.x == 1 ) \n" + "then\n" + "   System.out.println( $x ); \n" + "end\n" + "";
    KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kBuilder.add(new ByteArrayResource(s1.getBytes()), ResourceType.DRL);
    if (kBuilder.hasErrors()) {
        System.err.println(kBuilder.getErrors());
    }
    assertFalse(kBuilder.hasErrors());
    InternalKnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase();
    knowledgeBase.addPackages(kBuilder.getKnowledgePackages());
    KieSession knowledgeSession = knowledgeBase.newKieSession();
    FactHandle h = knowledgeSession.insert(new X());
    assertTrue(((InternalFactHandle) h).isEvent());
}

Example 82 with FactHandle

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

the class FirstOrderLogicTest method testOr.

@Test
public void testOr() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_OrNesting.drl");
    KieSession workingMemory = createKnowledgeSession(kbase);
    final List list = new ArrayList();
    workingMemory.setGlobal("results", list);
    final Cheese cheddar = new Cheese("cheddar", 7);
    final Cheese provolone = new Cheese("provolone", 5);
    final Cheese brie = new Cheese("brie", 15);
    final Person mark = new Person("mark", "stilton");
    FactHandle ch = (FactHandle) workingMemory.insert(cheddar);
    FactHandle ph = (FactHandle) workingMemory.insert(provolone);
    FactHandle bh = (FactHandle) workingMemory.insert(brie);
    FactHandle markh = (FactHandle) workingMemory.insert(mark);
    workingMemory.fireAllRules();
    assertEquals(1, list.size());
}

Example 83 with FactHandle

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

the class FirstOrderLogicTest method testCollectModifyAlphaRestriction.

@Test
public void testCollectModifyAlphaRestriction() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_CollectAlphaRestriction.drl");
    KieSession wm = createKnowledgeSession(kbase);
    final List results = new ArrayList();
    wm.setGlobal("results", results);
    final Cheese[] cheese = new Cheese[] { new Cheese("stilton", 10), new Cheese("stilton", 2), new Cheese("stilton", 5), new Cheese("brie", 15), new Cheese("brie", 16), new Cheese("provolone", 8) };
    final FactHandle[] cheeseHandles = new FactHandle[cheese.length];
    for (int i = 0; i < cheese.length; i++) {
        cheeseHandles[i] = (FactHandle) wm.insert(cheese[i]);
    }
    // ---------------- 1st scenario
    int fireCount = 0;
    wm.fireAllRules();
    assertEquals(++fireCount, results.size());
    assertEquals(3, ((Collection) results.get(fireCount - 1)).size());
    assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
    // ---------------- 2nd scenario
    final int index = 1;
    cheese[index].setType("brie");
    wm.update(cheeseHandles[index], cheese[index]);
    wm.fireAllRules();
    assertEquals(++fireCount, results.size());
    assertEquals(2, ((Collection) results.get(fireCount - 1)).size());
    assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
    // ---------------- 3rd scenario
    wm.retract(cheeseHandles[2]);
    wm.fireAllRules();
    assertEquals(++fireCount, results.size());
    assertEquals(1, ((Collection) results.get(fireCount - 1)).size());
    assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
}

Example 84 with FactHandle

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

the class FirstOrderLogicTest method testCollectModify.

@Test
public void testCollectModify() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_Collect.drl");
    KieSession wm = createKnowledgeSession(kbase);
    List results = new ArrayList();
    wm.setGlobal("results", results);
    final Cheese[] cheese = new Cheese[] { new Cheese("stilton", 10), new Cheese("stilton", 2), new Cheese("stilton", 5), new Cheese("brie", 15), new Cheese("brie", 16), new Cheese("provolone", 8) };
    final Person bob = new Person("Bob", "stilton");
    final FactHandle[] cheeseHandles = new FactHandle[cheese.length];
    for (int i = 0; i < cheese.length; i++) {
        cheeseHandles[i] = (FactHandle) wm.insert(cheese[i]);
    }
    final FactHandle bobHandle = (FactHandle) wm.insert(bob);
    // ---------------- 1st scenario
    int fireCount = 0;
    wm.fireAllRules();
    assertEquals(++fireCount, results.size());
    assertEquals(3, ((Collection) results.get(fireCount - 1)).size());
    assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
    // ---------------- 2nd scenario
    final int index = 1;
    cheese[index].setPrice(9);
    wm.update(cheeseHandles[index], cheese[index]);
    wm.fireAllRules();
    assertEquals(++fireCount, results.size());
    assertEquals(3, ((Collection) results.get(fireCount - 1)).size());
    assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
    // ---------------- 3rd scenario
    bob.setLikes("brie");
    wm.update(bobHandle, bob);
    wm.fireAllRules();
    assertEquals(fireCount, results.size());
    // ---------------- 4th scenario
    wm.retract(cheeseHandles[3]);
    wm.fireAllRules();
    // should not have fired as per constraint
    assertEquals(fireCount, results.size());
}

Example 85 with FactHandle

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

the class FirstOrderLogicTest method testForallSinglePattern.

@Test
public void testForallSinglePattern() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_ForallSinglePattern.drl");
    KieSession workingMemory = createKnowledgeSession(kbase);
    final List list = new ArrayList();
    workingMemory.setGlobal("results", list);
    int fired = 0;
    // no cheeses, so should fire
    workingMemory.fireAllRules();
    assertEquals(++fired, list.size());
    // only stilton, so should not fire again
    FactHandle stilton1 = (FactHandle) workingMemory.insert(new Cheese("stilton", 10));
    workingMemory.fireAllRules();
    assertEquals(fired, list.size());
    // only stilton, so should not fire again
    FactHandle stilton2 = (FactHandle) workingMemory.insert(new Cheese("stilton", 11));
    workingMemory.fireAllRules();
    assertEquals(fired, list.size());
    // still only stilton, so should not fire
    workingMemory.retract(stilton1);
    workingMemory.fireAllRules();
    assertEquals(fired, list.size());
    // there is a brie, so should not fire
    FactHandle brie = (FactHandle) workingMemory.insert(new Cheese("brie", 10));
    workingMemory.fireAllRules();
    assertEquals(fired, list.size());
    // no brie anymore, so should fire
    workingMemory.retract(brie);
    workingMemory.fireAllRules();
    assertEquals(++fired, list.size());
    // no more cheese, but since it already fired, should not fire again
    workingMemory.retract(stilton2);
    workingMemory.fireAllRules();
    assertEquals(fired, list.size());
}