Custom predicate example

public class Main {


    public static void main(String[] args) {
        Config cfg = new XmlConfigBuilder().build();
        HazelcastInstance instance1 = Hazelcast.newHazelcastInstance(cfg);
        IMap<Object, Person> map = instance1.getMap("map");
        Person p1 = new Person("mustafa", 25);
        p1.props.add("v1");
        Person p2 = new Person("ahmet", 45);
        p2.props.add("v2");

        map.put("1", p1);
        map.put("2", p2);

        Collection<Person> values = map.values(new ContainsPredicate("v2"));
        for (Person value : values) {
            System.out.println(value);
        }
    }

    static class ContainsPredicate implements Predicate, Serializable {

        String value;

        ContainsPredicate(String value) {
            this.value = value;
        }

        @Override
        public boolean apply(Map.Entry mapEntry) {
            Person person = (Person) mapEntry.getValue();
            return person.props.contains(value);
        }
    }

    static class Person implements Serializable{
        String name;
        int age;
        List<String> props = new ArrayList<String>();
        Person child;

        Person(String name, int age) {
            this.name = name;
            this.age = age;
        }

        Person(String name, int age, Person child) {
            this.name = name;
            this.age = age;
            this.child = child;
        }

        @Override
        public String toString() {
            return "Person{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    ", child=" + child +
                    '}';
        }
    }