package com.ruoyi.common.core.page;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.core.metadata.OrderItem;
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import lombok.Data;
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import lombok.experimental.Accessors;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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/**
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* 分页 Page 增强对象
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*
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* @param <T> 数据库实体
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* @param <K> vo实体
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* @author Lion Li
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*/
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@Data
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@Accessors(chain = true)
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public class PagePlus<T,K> implements IPage<T> {
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/**
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* domain实体列表
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*/
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private List<T> records = Collections.emptyList();
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/**
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* vo实体列表
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*/
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private List<K> recordsVo = Collections.emptyList();
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/**
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* 总数
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*/
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private long total = 0L;
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/**
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* 页长度
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*/
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private long size = 10L;
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/**
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* 当前页
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*/
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private long current = 1L;
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/**
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* 排序字段信息
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*/
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private List<OrderItem> orders = new ArrayList<>();
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/**
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* 自动优化 COUNT SQL
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*/
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private boolean optimizeCountSql = true;
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/**
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* 是否进行 count 查询
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*/
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private boolean isSearchCount = true;
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/**
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* 是否命中count缓存
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*/
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private boolean hitCount = false;
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/**
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* countId
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*/
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private String countId;
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/**
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* 最大limit
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*/
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private Long maxLimit;
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public PagePlus() {
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}
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public PagePlus(long current, long size) {
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this(current, size, 0L);
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}
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public PagePlus(long current, long size, long total) {
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this(current, size, total, true);
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}
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public PagePlus(long current, long size, boolean isSearchCount) {
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this(current, size, 0L, isSearchCount);
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}
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public PagePlus(long current, long size, long total, boolean isSearchCount) {
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if (current > 1L) {
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this.current = current;
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}
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this.size = size;
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this.total = total;
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this.isSearchCount = isSearchCount;
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}
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@Override
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public String countId() {
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return this.getCountId();
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}
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@Override
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public Long maxLimit() {
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return this.getMaxLimit();
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}
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public PagePlus<T, K> addOrder(OrderItem... items) {
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this.orders.addAll(Arrays.asList(items));
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return this;
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}
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public PagePlus<T, K> addOrder(List<OrderItem> items) {
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this.orders.addAll(items);
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return this;
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}
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@Override
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public List<OrderItem> orders() {
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return this.getOrders();
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}
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@Override
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public boolean optimizeCountSql() {
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return this.optimizeCountSql;
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}
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@Override
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public long getPages() {
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// 解决 github issues/3208
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return IPage.super.getPages();
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}
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public static <T,K> PagePlus<T,K> of(long current, long size) {
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return of(current, size, 0);
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}
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public static <T,K> PagePlus<T,K> of(long current, long size, long total) {
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return of(current, size, total, true);
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}
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public static <T,K> PagePlus<T,K> of(long current, long size, boolean searchCount) {
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return of(current, size, 0, searchCount);
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}
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public static <T,K> PagePlus<T,K> of(long current, long size, long total, boolean searchCount) {
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return new PagePlus<>(current, size, total, searchCount);
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}
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}
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