扩展tk.mybatis的流式查询功能实现

import org.apache.ibatis.annotations.Options;
import org.apache.ibatis.annotations.SelectProvider;
import org.apache.ibatis.mapping.ResultSetType;
import org.apache.ibatis.session.ResultHandler;


@tk.mybatis.mapper.annotation.ReGISterMapper
public interface SelectStreamByExampleMapper<T> {

    
    @Options(resultSetType = ResultSetType.FORWARD_ONLY, fetchSize = 1000)
    @SelectProvider(type = StreamExampleProvider.class, method = "dynamicsql")
    void selectStreamByExampleMapper(Object example, ResultHandler resultHandler);

}

import org.apache.ibatis.annotations.Options;
import org.apache.ibatis.annotations.SelectProvider;
import org.apache.ibatis.mapping.ResultSetType;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;


@tk.mybatis.mapper.annotation.RegisterMapper
public interface SelectStreamByExampleRowBoundsMapper<T> {

    
    @Options(resultSetType = ResultSetType.FORWARD_ONLY, fetchSize = 1000)
    @SelectProvider(type = StreamExampleProvider.class, method = "dynamicSQL")
    void selectStreamByExampleRowBoundsMapper(Object example, RowBounds rowBounds, ResultHandler resultHandler);

}

import org.apache.ibatis.mapping.MappedStatement;
import tk.mybatis.mapper.mapperhelper.MapperHelper;
import tk.mybatis.mapper.provider.ExampleProvider;



public class StreamExampleProvider extends ExampleProvider {

    public StreamExampleProvider(Class<?> mapperClass, MapperHelper mapperHelper) {
        super(mapperClass, mapperHelper);
    }


    
    public String selectStreamByExampleMapper(MappedStatement ms) {
        return this.selectByExample(ms);
    }

    
    public String selectStreamByExampleRowBoundsMapper(MappedStatement ms) {
        return this.selectByExample(ms);
    }

}

@tk.mybatis.mapper.annotation.RegisterMapper
public interface StreamMapper<T> extends
        SelectStreamByExampleMapper<T>,
        SelectStreamByExampleRowBoundsMapper<T> {
}

public interface BaseMapper<T> extends Mapper<T>, MysqlMapper<T>, StreamMapper<T> {
}

this.userMapper.selectStreamByExampleRowBoundsMapper(example, new RowBounds(0, 1), resultContext -> {
     User user= (User) resultContext.getResultObject();
     System.out.println(user);
 });


this.userMapper.selectStreamByExampleMapper(example, resultContext -> {
    User user= (User) resultContext.getResultObject();
    System.out.println(User);
});