cn.hutool.db.handler

Class NumberHandler

java.lang.Object

cn.hutool.db.handler.NumberHandler

All Implemented Interfaces:

RsHandler<Number>, Serializable

public class NumberHandler
extends Object
implements RsHandler<Number>

处理为数字结果，当查询结果为单个数字时使用此处理器（例如select count(1)）

Author:

loolly

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NumberHandler()

Method Summary

Modifier and Type	Method and Description
static NumberHandler	create() 创建一个 NumberHandler对象
Number	handle(ResultSet rs) 处理结果集 结果集处理后不需要关闭

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberHandler

public NumberHandler()

Method Detail

create

public static NumberHandler create()

创建一个 NumberHandler对象

Returns:

NumberHandler对象

handle

public Number handle(ResultSet rs)
              throws SQLException

Description copied from interface: RsHandler

处理结果集
结果集处理后不需要关闭

Specified by:

handle in interface RsHandler<Number>

Parameters:

rs - 结果集

Returns:

处理后生成的对象

Throws:

SQLException - SQL异常