Examples with Query2Def org.drools.model.Query2Def used on opensource projects

Example 1 with Query2Def

use of org.drools.model.Query2Def in project drools by kiegroup.

the class PatternDSLTest method testQueryInRule.

@Test
public void testQueryInRule() {
    Variable<Person> personV = DSL.declarationOf(Person.class);
    Query2Def<Person, Integer> qdef = query("olderThan", Person.class, Integer.class);
    Query query = qdef.build(pattern(qdef.getArg1()).expr("exprA", qdef.getArg2(), (p, a) -> p.getAge() > a));
    Variable<Person> personVRule = DSL.declarationOf(Person.class);
    Rule rule = rule("R").build(qdef.call(personVRule, valueOf(40)), on(personVRule).execute((drools, p) -> drools.insert(new Result(p.getName()))));
    Model model = new ModelImpl().addQuery(query).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 39));
    ksession.insert(new Person("Mario", 41));
    ksession.fireAllRules();
    Collection<Result> results = (Collection<Result>) ksession.getObjects(new ClassObjectFilter(Result.class));
    assertEquals(1, results.size());
    assertEquals("Mario", results.iterator().next().getValue());
}

Example 2 with Query2Def

use of org.drools.model.Query2Def in project drools by kiegroup.

the class FlowTest method testPositionalRecursiveQueryWithUnification.

@Test
public void testPositionalRecursiveQueryWithUnification() {
    Variable<Relationship> var_$pattern_Relationship$1$ = declarationOf(Relationship.class);
    Variable<Relationship> var_$pattern_Relationship$2$ = declarationOf(Relationship.class);
    Variable<String> var_$unificationExpr$1$ = declarationOf(String.class);
    Query2Def<String, String> queryDef_isRelatedTo = query("isRelatedTo", String.class, String.class);
    Query query = queryDef_isRelatedTo.build(or(and(expr("exprA", var_$pattern_Relationship$1$, queryDef_isRelatedTo.getArg1(), (r, s) -> r.getStart().equals(s)), expr("exprB", var_$pattern_Relationship$1$, queryDef_isRelatedTo.getArg2(), (r, e) -> r.getEnd().equals(e))), and(and(bind(var_$unificationExpr$1$).as(var_$pattern_Relationship$2$, relationship -> relationship.getStart()), expr("exprD", var_$pattern_Relationship$2$, queryDef_isRelatedTo.getArg2(), (r, e) -> r.getEnd().equals(e))), queryDef_isRelatedTo.call(queryDef_isRelatedTo.getArg1(), var_$unificationExpr$1$))));
    Model model = new ModelImpl().addQuery(query);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Relationship("A", "B"));
    ksession.insert(new Relationship("B", "C"));
    QueryResults results = ksession.getQueryResults("isRelatedTo", "A", "C");
    assertEquals(1, results.size());
    assertEquals("B", results.iterator().next().get(var_$unificationExpr$1$.getName()));
}

Example 3 with Query2Def

use of org.drools.model.Query2Def in project drools by kiegroup.

the class FlowTest method testQueryInRule.

@Test
public void testQueryInRule() {
    Variable<Person> personV = declarationOf(Person.class);
    Query2Def<Person, Integer> qdef = query("olderThan", Person.class, Integer.class);
    Query query = qdef.build(expr("exprA", qdef.getArg1(), qdef.getArg2(), (p, a) -> p.getAge() > a));
    Variable<Person> personVRule = declarationOf(Person.class);
    Rule rule = rule("R").build(qdef.call(personVRule, valueOf(40)), on(personVRule).execute((drools, p) -> drools.insert(new Result(p.getName()))));
    Model model = new ModelImpl().addQuery(query).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 39));
    ksession.insert(new Person("Mario", 41));
    ksession.fireAllRules();
    Collection<Result> results = (Collection<Result>) ksession.getObjects(new ClassObjectFilter(Result.class));
    assertEquals(1, results.size());
    assertEquals("Mario", results.iterator().next().getValue());
}

Example 4 with Query2Def

use of org.drools.model.Query2Def in project drools by kiegroup.

the class FlowTest method testQueryInvokedWithGlobal.

@Test
public void testQueryInvokedWithGlobal() {
    Global<Integer> ageG = globalOf(Integer.class, "defaultpkg", "ageG");
    Variable<Person> personV = declarationOf(Person.class);
    Query2Def<Person, Integer> qdef = query("olderThan", Person.class, Integer.class);
    Query query = qdef.build(expr("exprA", qdef.getArg1(), qdef.getArg2(), (_this, $age) -> _this.getAge() > $age));
    Rule rule = rule("R").build(expr("exprB", personV, p -> p.getName().startsWith("M")), qdef.call(personV, ageG), on(personV).execute((drools, p) -> drools.insert(new Result(p.getName()))));
    Model model = new ModelImpl().addGlobal(ageG).addQuery(query).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.setGlobal("ageG", 40);
    ksession.insert(new Person("Mark", 39));
    ksession.insert(new Person("Mario", 41));
    ksession.insert(new Person("Edson", 41));
    ksession.fireAllRules();
    Collection<Result> results = getObjectsIntoList(ksession, Result.class);
    assertEquals(1, results.size());
    assertEquals("Mario", results.iterator().next().getValue());
}

Example 5 with Query2Def

use of org.drools.model.Query2Def in project drools by kiegroup.

the class FlowTest method testQueryInvokingQuery.

@Test
public void testQueryInvokingQuery() {
    Variable<Relationship> relV = declarationOf(Relationship.class);
    Query2Def<String, String> query1Def = query("isRelatedTo1", String.class, String.class);
    Query2Def<String, String> query2Def = query("isRelatedTo2", String.class, String.class);
    Query query2 = query2Def.build(expr("exprA", relV, query2Def.getArg1(), (r, s) -> r.getStart().equals(s)), expr("exprB", relV, query2Def.getArg2(), (r, e) -> r.getEnd().equals(e)));
    Query query1 = query1Def.build(query2Def.call(query1Def.getArg1(), query1Def.getArg2()));
    Model model = new ModelImpl().addQuery(query2).addQuery(query1);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Relationship("A", "B"));
    ksession.insert(new Relationship("B", "C"));
    QueryResults results = ksession.getQueryResults("isRelatedTo1", "A", "B");
    assertEquals(1, results.size());
    assertEquals("B", results.iterator().next().get(query1Def.getArg2().getName()));
}