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package org.sophon.commons.pager;

import java.io.Serializable;
import java.util.Collections;
import java.util.List;

/**
 * 分页结果
 * @author moushaokun
 * @since time: 2023-02-16 21:55
 */
public final class PageResult implements Serializable {
    private static final long serialVersionUID = 4812489885816940728L;

    /**  数据集 */
    private List           list;

    /**  总量 */
    private Long              total;

    public PageResult() {}

    public List getList() {
        return list == null ? Collections.emptyList() : list;
    }

    public PageResult setList(List list) {
        this.list = list;
        return this;
    }

    public Long getTotal() {
        return total == null ? 0L : total;
    }

    public PageResult setTotal(Long total) {
        this.total = total;
        return this;
    }

    @Override
    public String toString() {
        return "PageResult(list=" + this.getList() + ", total=" + this.getTotal() + ")";
    }

    public static  PageResult of(List list, Long total){
        return new PageResult().setList(list).setTotal(total);
    }

    public static  PageResult of(List list){
        return new PageResult().setList(list);
    }

    public static  PageResult of(Long total){
        return new PageResult().setTotal(total);
    }
}