Package com.nexacro.uiadapter17.jakarta.dao.mybatis

Class SqlSessionResultHandler

java.lang.Object
com.nexacro.uiadapter17.jakarta.dao.mybatis.SqlSessionResultHandler
All Implemented Interfaces:
org.apache.ibatis.session.ResultHandler<Object>
public class SqlSessionResultHandler extends Object implements org.apache.ibatis.session.ResultHandler<Object>
MyBatis를 사용하여 nexacro platform으로 대용량 데이터를 전송하려고 할때 사용되는 ResultHandler 이다. iBatis의 SqlMapClient 기반의 SqlMapClientRowHandler를 MyBatis의 SqlSession 기반으로 대체한 클래스이다. 기존 `SqlMapClientRowHandler`의 모든 기능을 MyBatis 환경에서 동일하게 제공하며, 대용량 데이터를 분할하여 전송하는 기능을 그대로 지원한다.

아래와 같은 형식으로 queryWithRowHandler() 대신 select()로 처리한다. 쿼리가 실행한 후 남아 있는 데이터가 존재할 수 있기 때문에 전송되지 않은 데이터를 전송한다. 

  // 기존 iBatis - SqlMapClient 방식
      SqlMapClientRowHandler rowHandler = new SqlMapClientRowHandler(firstRowHandler, sendName, firstRowCount);
      getSqlMapClientTemplate().queryWithRowHandler("largeDataDAO.selectLargeData", null, rowHandler);
      rowHandler.sendRemainData();
  // 신규 MyBatis - SqlSession 방식
      SqlSessionResultHandler rowHandler = new SqlSessionResultHandler(firstRowHandler, sendName, firstRowCount);
      getSqlSession().select("largeDataDAO.selectLargeData", null, rowHandler);
      rowHandler.sendRemainData();
Since:
11.06.2025
Version:
1.0
Author:
TechServ.

  • Constructor Summary

    Constructors
    Constructor
    Description
    SqlSessionResultHandler(com.nexacro.uiadapter17.jakarta.core.data.NexacroFirstRowHandler firstRowHandler, String resultName, int firstRowCount)
    Constructs an instance of SqlSessionResultHandler.

  • Method Summary

    Modifier and Type
    Method
    Description
    com.nexacro17.xapi.data.DataSet
    getDataSet()
    Gets the current DataSet object.
    void
    handleResult(org.apache.ibatis.session.ResultContext<? extends Object> resultContext)
    Handles the processing of a result retrieved from a database query.
    void
    sendRemainData()
    데이터 분할 전송 후 남아 있는 데이터를 전송한다.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • SqlSessionResultHandler

      public SqlSessionResultHandler(com.nexacro.uiadapter17.jakarta.core.data.NexacroFirstRowHandler firstRowHandler, String resultName, int firstRowCount)
      Constructs an instance of SqlSessionResultHandler.
      Parameters:
      firstRowHandler - the handler responsible for processing the first rows of the result; it manages the data transfer and processing logic
      resultName - the name of the result to be used in creating the DataSet
      firstRowCount - the configuration value indicating how many rows are initially processed; if the provided value is less than or equal to zero, a default value is used

  • Method Details

    • handleResult

      public void handleResult(org.apache.ibatis.session.ResultContext<? extends Object> resultContext)
      Handles the processing of a result retrieved from a database query. This method processes the result object, prepares the DataSet, adds rows to it, and determines when to send a batch of rows for further processing. If any error occurs during the data preparation or processing, the method throws a specific exception.
      Specified by:
      handleResult in interface org.apache.ibatis.session.ResultHandler<Object>
      Parameters:
      resultContext - the context containing the current result object from a database query, which is processed and added to a DataSet
      Throws:
      NexacroFirstRowException - if there is an error sending the data or converting an object into a DataSet

    • sendRemainData

      public void sendRemainData()
      데이터 분할 전송 후 남아 있는 데이터를 전송한다.

    • getDataSet

      public com.nexacro17.xapi.data.DataSet getDataSet()
      Gets the current DataSet object.
      Returns: