PaginatedList.gotoPage这个方法是在什么地方被实现的

[beidoutianji]

请看如下代码：



public class BaseSqlMapDao extends SqlMapClientDaoSupport {

protected static final int PAGE_SIZE = 4;

protected SqlMapClientTemplate smcTemplate = this.getSqlMapClientTemplate();

public BaseSqlMapDao(){}

public Pagination queryForPaginatedList(String statementName,Object parameterObject,int pageNo,int totalRows)throws DataAccessException{
Pagination pagination = new Pagination(totalRows,pageNo,new ArrayList());

int pageSize= 1；
int rowsEveryPage = 10；

List list;

if(pageSize>0 && pageNo>=0){

list = smcTemplate.queryForPaginatedList(statementName,parameterObject,rowsEveryPage);

if (pageSize >= pageNo) {
((PaginatedList) list).gotoPage(pageNo-1);

} else {
((PaginatedList) list).gotoPage(pageSize-1);
}
}else{
list = smcTemplate.queryForList(statementName,parameterObject);
}
pagination.setData(list);

return pagination;
}
}

PaginatedList是一个接口，它的gotoPage方法是在什么地方被实现的？我看了ibatis及spring-framework的相关源码，都没有完全弄明白，请高手讲解一下这个过程

[beidoutianji]

以上代码引入的相关包是：
import com.ibatis.common.util.PaginatedList;
import org.springframework.orm.ibatis.SqlMapClientTemplate;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import org.springframework.dao.DataAccessException;

import java.util.ArrayList;
import java.util.List;

[阿甘1976]

实现这个接口的是PaginatedDataList类

大多数时侯框架的具体实现其实不需要了解啊,会用就OK啦.

主要实现部分如下:

public void pageTo(int idx) throws SQLException {
    index = idx;

    List list;

    if (idx < 1) {
      list = getList(idx, pageSize * 2);
    } else {
      list = getList(idx - 1, pageSize * 3);
    }

    if (list.size() < 1) {
      prevPageList = new ArrayList(0);
      currentPageList = new ArrayList(0);
      nextPageList = new ArrayList(0);
    } else {
      if (idx < 1) {
        prevPageList = new ArrayList(0);
        if (list.size() <= pageSize) {
          currentPageList = list.subList(0, list.size());
          nextPageList = new ArrayList(0);
        } else {
          currentPageList = list.subList(0, pageSize);
          nextPageList = list.subList(pageSize, list.size());
        }
      } else {
        if (list.size() <= pageSize) {
          prevPageList = list.subList(0, list.size());
          currentPageList = new ArrayList(0);
          nextPageList = new ArrayList(0);
        } else if (list.size() <= pageSize * 2) {
          prevPageList = list.subList(0, pageSize);
          currentPageList = list.subList(pageSize, list.size());
          nextPageList = new ArrayList(0);
        } else {
          prevPageList = list.subList(0, pageSize);
          currentPageList = list.subList(pageSize, pageSize * 2);
          nextPageList = list.subList(pageSize * 2, list.size());
        }
      }
    }

  }

[beidoutianji]

其实我知道有两个类实现了gotoPage方法，但是我不知道具体为什么会是PaginatedDataList就不是很理解了
这个流程是什么才是我很迷惑的地方，所以请高手继续指教。再次谢谢阿甘！
还有，上述方法中list存储的真正是什么对象了？

[beidoutianji]

我终于弄明白了
谢谢阿甘
结果如阿甘所说
但过程果然很复杂 谢谢了
SqlMapClientTemplate.queryForPaginatedList -> SqlMapSessionImpl.queryForPaginatedList -> SqlMapExecutorDelegate.queryForPaginatedList 这是这个过程的关键，剩下的大家自己就能看明白了
散分！