001package net.objectlab.kit.datecalc.common; 002 003public interface NonWorkingDayChecker<E> { 004 005 /** 006 * Is the given date a non working day, i.e. either a "weekend" or a 007 * holiday? 008 * 009 * @return true if the given date is non-working. 010 */ 011 boolean isNonWorkingDay(E date); 012 013}