public Event createDeleteEvent() {
	    return MockUtil.createEvent(null, null);
	}

	/**
	 * @return
	 */
	public Event createDownEvent() {
	    return MockUtil.createEvent(null, null);
	}

	/**
	 * @return
	 */
	public Event createUpEvent() {
	    return MockUtil.createEvent(null, null);
	}