Examples with Variable org.drools.model.Variable used on opensource projects

Example 11 with Variable

use of org.drools.model.Variable in project drools by kiegroup.

the class FlowTest method testAccumulate2.

@Test
public void testAccumulate2() {
    Result result = new Result();
    Variable<Person> person = declarationOf(Person.class);
    Variable<Integer> resultSum = declarationOf(Integer.class);
    Variable<Double> resultAvg = declarationOf(Double.class);
    Variable<Integer> age = declarationOf(Integer.class);
    Rule rule = rule("accumulate").build(bind(age).as(person, Person::getAge), accumulate(expr(person, p -> p.getName().startsWith("M")), accFunction(org.drools.core.base.accumulators.IntegerSumAccumulateFunction.class, age).as(resultSum), accFunction(org.drools.core.base.accumulators.AverageAccumulateFunction.class, age).as(resultAvg)), on(resultSum, resultAvg).execute((sum, avg) -> result.setValue("total = " + sum + "; average = " + avg)));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 37));
    ksession.insert(new Person("Edson", 35));
    ksession.insert(new Person("Mario", 40));
    ksession.fireAllRules();
    assertEquals("total = 77; average = 38.5", result.getValue());
}

Example 12 with Variable

use of org.drools.model.Variable in project drools by kiegroup.

the class FlowTest method testOrConditional.

@Test
public void testOrConditional() {
    final org.drools.model.Global<java.util.List> var_list = globalOf(java.util.List.class, "defaultpkg", "list");
    final Variable<Employee> var_$pattern_Employee$1$ = declarationOf(Employee.class, "$pattern_Employee$1$");
    final Variable<Address> var_$address = declarationOf(Address.class, "$address", reactiveFrom(var_$pattern_Employee$1$, (_this) -> _this.getAddress()));
    org.drools.model.Rule rule = rule("R").build(or(and(input(var_$pattern_Employee$1$), expr("$expr$2$", var_$address, (_this) -> org.drools.modelcompiler.util.EvaluationUtil.areNullSafeEquals(_this.getCity(), "Big City")).indexedBy(String.class, org.drools.model.Index.ConstraintType.EQUAL, 0, _this -> _this.getCity(), "Big City").reactOn("city")), and(input(var_$pattern_Employee$1$), expr("$expr$4$", var_$address, (_this) -> org.drools.modelcompiler.util.EvaluationUtil.areNullSafeEquals(_this.getCity(), "Small City")).indexedBy(String.class, org.drools.model.Index.ConstraintType.EQUAL, 0, _this -> _this.getCity(), "Small City").reactOn("city"))), on(var_$address, var_list).execute(($address, list) -> {
        list.add($address.getCity());
    }));
    Model model = new ModelImpl().addRule(rule).addGlobal(var_list);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession kieSession = kieBase.newKieSession();
    List<String> results = new ArrayList<>();
    kieSession.setGlobal("list", results);
    final Employee bruno = createEmployee("Bruno", new Address("Elm", 10, "Small City"));
    kieSession.insert(bruno);
    final Employee alice = createEmployee("Alice", new Address("Elm", 10, "Big City"));
    kieSession.insert(alice);
    kieSession.fireAllRules();
    Assertions.assertThat(results).containsExactlyInAnyOrder("Big City", "Small City");
}

Example 13 with Variable

use of org.drools.model.Variable in project drools by kiegroup.

the class FlowTest method testNot.

@Test
public void testNot() {
    Result result = new Result();
    Variable<Person> oldestV = declarationOf(Person.class);
    Variable<Person> otherV = declarationOf(Person.class);
    Rule rule = rule("not").build(not(otherV, oldestV, (p1, p2) -> p1.getAge() > p2.getAge()), on(oldestV).execute(p -> result.setValue("Oldest person is " + p.getName())));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 37));
    ksession.insert(new Person("Edson", 35));
    ksession.insert(new Person("Mario", 40));
    ksession.fireAllRules();
    assertEquals("Oldest person is Mario", result.getValue());
}

Example 14 with Variable

use of org.drools.model.Variable in project drools by kiegroup.

the class FlowTest method testQueryWithNamedArg.

@Test
public void testQueryWithNamedArg() {
    Variable<Person> personV = declarationOf(Person.class, "$p");
    Query1Def<Integer> qdef = query("olderThan", Integer.class, "ageArg");
    Query query = qdef.build(expr("exprA", personV, qdef.getArg("ageArg", Integer.class), (p, a) -> p.getAge() > a));
    Model model = new ModelImpl().addQuery(query);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 39));
    ksession.insert(new Person("Mario", 41));
    QueryResults results = ksession.getQueryResults("olderThan", 40);
    assertEquals(1, results.size());
    Person p = (Person) results.iterator().next().get("$p");
    assertEquals("Mario", p.getName());
}

Example 15 with Variable

use of org.drools.model.Variable in project drools by kiegroup.

the class FlowTest method test3Patterns.

@Test
public void test3Patterns() {
    Result result = new Result();
    Variable<Person> personV = declarationOf(Person.class);
    Variable<Person> markV = declarationOf(Person.class);
    Variable<String> nameV = declarationOf(String.class);
    Rule rule = rule("myrule").build(expr("exprA", markV, p -> p.getName().equals("Mark")), expr("exprB", personV, markV, (p1, p2) -> p1.getAge() > p2.getAge()), expr("exprC", nameV, personV, (s, p) -> s.equals(p.getName())), on(nameV).execute(result::setValue));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert("Mario");
    ksession.insert(new Person("Mark", 37));
    ksession.insert(new Person("Edson", 35));
    ksession.insert(new Person("Mario", 40));
    ksession.fireAllRules();
    assertEquals("Mario", result.getValue());
}