/*
    * Copyright 2001-2008 The Apache Software Foundation.
    * 
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    * 
    *      http://www.apache.org/licenses/LICENSE-2.0
    * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  package org.apache.juddi.subscription;
  
  import org.apache.commons.collections.buffer.CircularFifoBuffer;
  import org.apache.commons.collections.Buffer;
  import org.apache.commons.collections.BufferUtils;
  
  public class NotificationList<T>  {
  	private static NotificationList<String> nl = null;
  	private static Buffer list = null;
  	
  	private NotificationList() {	
  		list = BufferUtils.synchronizedBuffer(new CircularFifoBuffer(10));
  	}
  	
  	public static NotificationList<String> getInstance() {
  		if (nl == null) {
  			nl = new NotificationList<String>();
  		}
  		return nl;	
  	}
  	
  	public Buffer getNotifications() {
  		return list;
  	}
  }