content: package com.alibaba.otter.canal.admin.model;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  
  public class Pager<T> implements Serializable {
  
      private static final long serialVersionUID = -986577815091763517L;
  
      private Long              count            = 0L;
      private List<T>           items            = new ArrayList<>();
      private Integer           page             = 1;
      private Integer           size             = 20;
      private Long              offset           = 0L;
  
      public Pager(){
  
      }
  
      public Pager(Integer page, Integer size){
          this.page = page;
          this.size = size;
      }
  
      public Pager(Long count, List<T> items){
          this.count = count;
          this.items = items;
      }
  
      public String toString() {
          return "PageResult[count=" + this.count + ", items=" + this.items + "]";
      }
  
      public Long getCount() {
          return this.count;
      }
  
      public void setCount(Long count) {
          this.count = count;
      }
  
      public List<T> getItems() {
          return items;
      }
  
      public void setItems(List<T> items) {
          this.items = items;
      }
  
      public Integer getPage() {
          if (page == null) {
              page = 1;
          }
          return page;
      }
  
      public void setPage(Integer page) {
          this.page = page;
      }
  
      public Integer getSize() {
          if (size == null) {
              size = 20;
          }
          return size;
      }
  
      public void setSize(Integer size) {
          this.size = size;
      }
  
      public Long getOffset() {
          offset = (long) (getPage() - 1) * (long) getSize();
          return offset;
      }
  
      public void setOffset(Long offset) {
          this.offset = offset;
      }
  }
  