Singleton - Layholder

SingletonTestLayholder.java

package io.javarouka.gist.pattern;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class SingletonLayholder {

    static {
        log.debug("SingletonLayholder initialized");
    }

    private SingletonLayholder() {
        log.debug("Created! " + this.getClass().getSimpleName());
    }

    public static void foke() {
        log.debug("fork!");
    }

    public static SingletonLayholder getInstance() {
        return LazyHolder.INSTANCE;
    }

    private static class LazyHolder {

        static {
            log.debug("SingletonLayholder.LazyHolder initialized");
        }

        private static final SingletonTestLayholder INSTANCE = new SingletonTestLayholder();
    }
}