JAVA分页工具

public class Pagination<T>  {
    /**
     * 当前页
     */
    private int page;
    /**
     * 最大页
     */
    private int max;
    /**
     * 下一页
     */
    private int next;
    /**
     * 上一页
     */
    private int previous;
    /**
     * 本页显示数据开始位置
     */
    private int start;
    /**
     * 本页显示数据的结束未知
     */
    private int end;
    /**
     * 数据
     */
    private T data;
    /**
     * 总数
     */
    private int maxRows;

    public Pagination(){};

    /**
     * 分页
     * @param maxRows 数据的最大行数
     * @param pageNum 每页最多显示多少条数据
     * @param curPage 指定当前页
     */
    public Pagination(int maxRows,int pageNum,int curPage){
        this.maxRows = maxRows;

        curPage = curPage < 1 ? 1 : curPage;
        this.page = curPage;
        this.max = maxRows%pageNum == 0 ? maxRows/pageNum : maxRows/pageNum + 1;

        if(page < max){
            this.next =  page + 1;
        }else if(page == max){
            this.next = max;
        }

        if(page > 1){
            this.previous = page - 1;
        }if(page == 1){
            this.previous = page;
        }

        this.start = (curPage-1) * pageNum;
        this.end =   pageNum;
    }

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getMax() {
        return max;
    }

    public void setMax(int max) {
        this.max = max;
    }

    public int getNext() {
        return next;
    }

    public void setNext(int next) {
        this.next = next;
    }

    public int getPrevious() {
        return previous;
    }

    public void setPrevious(int previous) {
        this.previous = previous;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }

    public int getStart() {
        return start;
    }

    public void setStart(int start) {
        this.start = start;
    }

    public int getEnd() {
        return end;
    }

    public void setEnd(int end) {
        this.end = end;
    }

    public int getMaxRows() {
        return maxRows;
    }

    public void setMaxRows(int maxRows) {
        this.maxRows = maxRows;
    }
}