当离线查询中in(not in)里的个数超过1000时

public class DBUtils {
	/**
	 * * 当离线查询中in(not in)里的个数超过1000时 ，拆分成几个不同的in分句中 *
	 * 
	 * create by liutingfeng * * @param list * 满足条件的集合 * @param detachedCriteria
	 * * DetachedCriteria对象 * @param inOrNot * in 或者 not * @param field * 字段名称 * @param
	 * manageSizeEachOnce * 拆分每个in中放多少个,不填写默认是1000个 * @return DetachedCriteria *
	 * 
	 * example: *
	 * 
	 * final DetachedCriteria criteria = *
	 * DetachedCriteria.forClass(Product.class); *
	 * 
	 * final List scopeProductClasses = * this.productClassDao
	 * .findSubClassesByMultiIds("1,2"); *
	 * 
	 * DbHelper.splitSourceInDc(scopeProductClasses, criteria, "in", *
	 * "class5");
	 */
	@SuppressWarnings("unchecked")
	public static DetachedCriteria splitSourceInDc(List list, DetachedCriteria detachedCriteria, String inOrNot,
			String field, Integer... manageSizeEachOnce) {
		Integer size = 1000;
		// 如果指定了每次处理的数量,没有写默认为1000
		if (ObjectHelper.isNotEmpty(manageSizeEachOnce) && ObjectHelper.isNotEmpty(manageSizeEachOnce[0])) {
			size = manageSizeEachOnce[0];
		}
		if (ObjectHelper.isNotEmpty(list) && list.size() > 0) {
			Junction junction = null;
			if (("in").equals(inOrNot)) {
				junction = Restrictions.disjunction();
			} else if ("not".equals(inOrNot)) {
				junction = Restrictions.conjunction();
			}
			// 总共分成totalPage数个in (not in)语句
			int totalPage = list.size() / size + (list.size() % size > 0 ? 1 : 0);
			for (int i = 0; i < totalPage; i++) {
				// 起始list的记录
				int startIndexOfList = i * size; // 结束list的记录
				int endIndexOfList = (i + 1) * size > list.size() ? list.size() : (i + 1) * size;
				List sublist = list.subList(startIndexOfList, endIndexOfList);
				junction.add(Restrictions.in(field, sublist));
			}
			detachedCriteria.add(junction);
		}
		return detachedCriteria;
	}
}