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/**
 *    Copyright 2009-2015 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.apache.ibatis.executor.loader;

import java.sql.SQLException;
import java.util.List;

import javax.sql.DataSource;

import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.executor.ExecutorException;
import org.apache.ibatis.executor.ResultExtractor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.Environment;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.reflection.factory.ObjectFactory;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ExecutorType;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.transaction.Transaction;
import org.apache.ibatis.transaction.TransactionFactory;

/**
 * @author Clinton Begin
 */
public class ResultLoader {

  protected final Configuration configuration;
  protected final Executor executor;
  protected final MappedStatement mappedStatement;
  protected final Object parameterObject;
  protected final Class targetType;
  protected final ObjectFactory objectFactory;
  protected final CacheKey cacheKey;
  protected final BoundSql boundSql;
  protected final ResultExtractor resultExtractor;
  protected final long creatorThreadId;
  
  protected boolean loaded;
  protected Object resultObject;
  
  public ResultLoader(Configuration config, Executor executor, MappedStatement mappedStatement, Object parameterObject, Class targetType, CacheKey cacheKey, BoundSql boundSql) {
    this.configuration = config;
    this.executor = executor;
    this.mappedStatement = mappedStatement;
    this.parameterObject = parameterObject;
    this.targetType = targetType;
    this.objectFactory = configuration.getObjectFactory();
    this.cacheKey = cacheKey;
    this.boundSql = boundSql;
    this.resultExtractor = new ResultExtractor(configuration, objectFactory);
    this.creatorThreadId = Thread.currentThread().getId();
  }

  public Object loadResult() throws SQLException {
    List