Package xyz.zhouxy.jdbc

Interface RowMapper<T>

All Known Implementing Classes:

DefaultBeanRowMapper

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface RowMapper<T>

RowMapper

ResultSet 中每一行数据的处理逻辑。

Since:

1.0.0

Author:

ZhouXY

Field Summary

Fields

Modifier and Type	Field	Description
static final RowMapper<Map<String,Object>>	HASH_MAP_MAPPER	每一行数据转换为 HashMap

Method Summary

Modifier and Type	Method	Description
static <T> RowMapper<T>	beanRowMapper(Class<T> beanType)	默认实现的将 ResultSet 转换为 Java Bean 的 RowMapper。
static <T> RowMapper<T>	beanRowMapper(Class<T> beanType, Map<String,String> propertyColMap)	默认实现的将 ResultSet 转换为 Java Bean 的 RowMapper。
T	mapRow(ResultSet rs, int rowNumber)

Field Details

HASH_MAP_MAPPER

static final RowMapper<Map<String,Object>> HASH_MAP_MAPPER

每一行数据转换为 HashMap

注：如果两个属性映射到同一列名，后者静默覆盖前者。

Method Details

mapRow

T mapRow(ResultSet rs,
 int rowNumber)
  throws SQLException

Throws:

SQLException

beanRowMapper

static <T> RowMapper<T> beanRowMapper(Class<T> beanType)
                               throws SQLException

默认实现的将 ResultSet 转换为 Java Bean 的 RowMapper。

Type Parameters:

T - Java Bean 的类型

Parameters:

beanType - Java Bean 的类型

Returns:

DefaultBeanRowMapper

Throws:

SQLException - 如果创建 DefaultBeanRowMapper 失败

beanRowMapper

static <T> RowMapper<T> beanRowMapper(Class<T> beanType,
 Map<String,String> propertyColMap)
                               throws SQLException

默认实现的将 ResultSet 转换为 Java Bean 的 RowMapper。

Type Parameters:

T - Java Bean 的类型

Parameters:

beanType - Java Bean 的类型

propertyColMap - Java Bean 属性名与数据库列名的映射关系

Returns:

DefaultBeanRowMapper

Throws:

SQLException - 如果创建 DefaultBeanRowMapper 失败