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package com.github.wz2cool.dynamic.model;

import java.util.ArrayList;
import java.util.List;
import java.util.function.Function;

import static java.util.stream.Collectors.toList;

/**
 * @author Frank
 **/
public class NormPagingResult {
    /**
     * 是否有上一页
     */
    private boolean hasPreviousPage;
    /**
     * 是否有下一页
     */
    private boolean hasNextPage;
    /**
     * 每页数量
     */
    private int pageSize;
    /**
     * 页码
     */
    private int pageNum;
    /**
     * 总页数
     */
    private int pages;
    /**
     * 总记录数
     */
    private long total;
    /**
     * 结果集
     */
    private List list = new ArrayList<>();


    /**
     * 转换 NormPagingResult 的数据泛型
     *
     * @param mapper 数据类型映射关系
     * @param     目标数据泛型
     * @return 目标数据泛型的 {@link NormPagingResult}
     */
    public  NormPagingResult convert(Function mapper) {
        List collect = this.getList().stream().map(mapper).collect(toList());
        ((NormPagingResult)this).setList(collect);
        return ((NormPagingResult)this);
    }

    public boolean isHasPreviousPage() {
        return hasPreviousPage;
    }

    public void setHasPreviousPage(boolean hasPreviousPage) {
        this.hasPreviousPage = hasPreviousPage;
    }

    public boolean isHasNextPage() {
        return hasNextPage;
    }

    public void setHasNextPage(boolean hasNextPage) {
        this.hasNextPage = hasNextPage;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public List getList() {
        return list == null ? new ArrayList<>() : new ArrayList<>(list);
    }

    public void setList(List list) {
        this.list = list == null ? new ArrayList<>() : new ArrayList<>(list);
    }

    public int getPageNum() {
        return pageNum;
    }

    public void setPageNum(int pageNum) {
        this.pageNum = pageNum;
    }

    public int getPages() {
        return pages;
    }

    public void setPages(int pages) {
        this.pages = pages;
    }

    public long getTotal() {
        return total;
    }

    public void setTotal(long total) {
        this.total = total;
    }
}