com.litongjava.tio.utils.page.Page Maven / Gradle / Ivy

package com.litongjava.tio.utils.page;

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

import com.litongjava.tio.utils.convert.Converter;

/**
 *
 * @author tanyaowu
 * 2017年5月10日 下午12:01:18
 */
public class Page implements Serializable {

  private static final long serialVersionUID = 6551482606063638959L;
  private List list = null; // 当前页的数据
  private Integer pageNumber; // 当前页码，从1开始，如果值小于等于0，则视为1
  private Integer pageSize; // 每页记录数
  private Integer totalRow; // 总条数
  private Integer totalPage; // 总页数

  public Page() {

  }

  /**
   *
   * @param list
   * @param pageIndex
   * @param pageSize
   * @param recordCount
   * @author tanyaowu
   */
  public Page(List list, Integer pageNumber, Integer pageSize, Integer totalRow) {
    this.list = list;
    this.pageNumber = pageNumber;
    this.pageSize = pageSize;
    this.totalRow = totalRow;
  }

  public Page(List list, Integer pageNumber, Integer pageSize, Integer totalRow, Converter converter) {
    if (list != null && list.size() > 0 && converter != null) {
      this.list = new ArrayList<>(list.size());
      for (Object object : list) {
        T t = converter.convert(object);
        this.list.add(t);
      }
    }

    this.pageNumber = pageNumber;
    this.pageSize = pageSize;
    this.totalRow = totalRow;
  }

  public List getList() {
    return list;
  }

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

  public Integer getPageNumber() {
    return pageNumber;
  }

  public void setPageNumber(Integer pageNumber) {
    this.pageNumber = pageNumber;
  }

  public Integer getPageSize() {
    return pageSize;
  }

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

  public Integer getTotalRow() {
    return totalRow;
  }

  public void setTotalRow(Integer totalRow) {
    this.totalRow = totalRow;
  }

  public Integer getTotalPage() {
    Double result = Math.ceil(((double) (totalRow) / pageSize));
    totalPage = result.intValue();
    return totalPage;
  }

  public void setTotalPage(Integer totalPage) {
    this.totalPage = totalPage;
  }

  public boolean isFirstPage() {
    return pageNumber <= 1;
  }

  public boolean isLastPage() {
    return pageNumber >= getTotalPage();
  }

  @Override
  public String toString() {
    return String.format("Page [list=%s, pageNumber=%s, pageSize=%s, totalRow=%s, totalPage=%s]", getList(),
        getPageNumber(), getPageSize(), getTotalRow(), getTotalPage());
  }
}