Mapping back to the real world

Having briefly explored Hazelcast's distributed capabilities via a test console, let's have a look at how we are more likely to interact with a cluster in the real world. Let's create a new SimpleMapExample class with a main method to spin up and manipulate a named distributed map called capitals. Hazelcast refers to these named collections as a namespace. These collections must be uniquely named across the cluster, as follows:

import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import java.util.Map;

public class SimpleMapExample {
  public static void main(String[] args) {
    HazelcastInstance hz = Hazelcast.newHazelcastInstance();

    Map<String, String> capitals = hz.getMap("capitals");
    capitals.put("GB", "London");
    capitals.put("FR", "Paris");
    capitals.put("US", "Washington DC");
    capitals.put("AU", "Canberra...