private void addDate(Date date) {
		Assert.notNull(date, "Date must not be null");
		nextFireDates.add(date);
	}
A {@link Trigger} implementation that enables execution on a series of Dates.

@author Glenn Renfro
@author Florent Biville
spring-xd-module/src/main/java/org/springframework/xd/module/support/DateTrigger.java