EMF.java

package com.mgreau.gae.booking;

import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public final class EMF {
  private static final EntityManagerFactory emfInstance =
      Persistence.createEntityManagerFactory("transactions-optional");

  private EMF() {
  }

  public static EntityManagerFactory get() {
    return emfInstance;
  }
}