HubPersistentStorerSPI.java

/*
It is a application for event distribution to event n-consumers with m-sources.
Copyright (C) 2010 "Imran M Yousuf <imran@smartitengineering.com>"

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or any later
version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.smartitengineering.event.hub.spi;

import com.smartitengineering.util.bean.BeanFactoryRegistrar;
import com.smartitengineering.util.bean.annotations.Aggregator;
import com.smartitengineering.util.bean.annotations.InjectableField;

/**
 *
 * @author imyousuf
 */
@Aggregator(contextName="com.smartitengineering.event.hub.spi")
public final class HubPersistentStorerSPI {

  @InjectableField(beanName="storer")
  private HubPersistentStorer storer;

  private HubPersistentStorerSPI() {
  }

  public HubPersistentStorer getStorer() {
    return storer;
  }

  private static HubPersistentStorerSPI storerSPI;

  public static HubPersistentStorerSPI getInstance() {
    if(storerSPI == null) {
      storerSPI = new HubPersistentStorerSPI();
      BeanFactoryRegistrar.aggregate(storerSPI);
    }
    return storerSPI;
  }
}