ObservableImpl.java

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package com.smartitengineering.user.service.impl;

import com.google.inject.Inject;
import com.smartitengineering.domain.PersistentDTO;
import com.smartitengineering.user.observer.CRUDObservable;
import com.smartitengineering.user.observer.CRUDObserver;
import com.smartitengineering.user.observer.ObserverNotification;
import java.util.Set;

/**
 *
 * @author modhu7
 */
public class ObservableImpl implements CRUDObservable {

  @Inject
  private Set<CRUDObserver> observers;

  public Set<CRUDObserver> getObservers() {
    return observers;
  }

  public void setObservers(Set<CRUDObserver> observers) {
    this.observers = observers;
  }

  @Override
  public void addObserver(CRUDObserver observer) {
    if (observer != null) {
      observers.add(observer);
    }
  }

  @Override
  public void removeObserver(CRUDObserver observer) {
    if (observer != null) {
      observers.remove(observer);
    }
  }

  @Override
  public void notifyObserver(ObserverNotification notification, PersistentDTO object) {
    for (CRUDObserver observer : observers) {
      observer.update(notification, object);
    }
  }
}