sf.database.dbinfo

Class ColumnChange

java.lang.Object

sf.database.dbinfo.ColumnChange

public class ColumnChange
extends Object

描述一个数据库列上的一种变化

Author:

Administrator

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ColumnChange.Change 列的变化种类 ColumnChange.Change.ADD_COLUMN 列添加 ColumnChange.Change.DROP_COLUMN 列删除 ColumnChange.Change.CHG_DATATYPE 数据类型定义变化 ColumnChange.Change.CHG_TO_NULL 变更为允许NULL ColumnChange.Change.CHG_TO_NOT_NULL 变更为NOT NULL ColumnChange.Change.CHG_DEFAULT 变更缺省值的表达式 ColumnChange.Change.CHG_DROP_DEFAULT 取消缺省值设置

Constructor Summary

Constructors

Constructor and Description
ColumnChange(ColumnChange.Change type) 构造

Method Summary

Modifier and Type	Method and Description
String	getFrom() 获得变更前的描述
String	getTo() 获得变更后描述
ColumnChange.Change	getType() 变更种类
void	setFrom(String from) 设置变更前描述
void	setTo(String to) 设置变更后描述
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnChange

public ColumnChange(ColumnChange.Change type)

构造

Parameters:

type -

Method Detail

getType

public ColumnChange.Change getType()

变更种类

Returns:

change枚举，描述变更种类

See Also:

ColumnChange.Change

getFrom

public String getFrom()

获得变更前的描述

Returns:

变更前描述

setFrom

public void setFrom(String from)

设置变更前描述

Parameters:

from -

getTo

public String getTo()

获得变更后描述

Returns:

to

setTo

public void setTo(String to)

设置变更后描述

Parameters:

to -

toString

public String toString()

Overrides:

toString in class Object