public long getCount(Date fromWhen, Date toWhen, boolean fromInclusive, boolean toInclusive) {
		return getCount(fromWhen.getTime(), toWhen.getTime(), true, false);
	}
public long getCount ( Date fromWhen , Date toWhen , boolean fromInclusive , boolean toInclusive ) { return getCount ( fromWhen . getTime ( ) , toWhen . getTime ( ) , true , false ) ; }
获得某时间区间的计数
@param fromWhen		开始时间
@param toWhen		结束时间
@param fromInclusive	是否包含开始时间
@param toInclusive	是否包含结束时间
@return				统计数