com.github.braisdom.objsql.annotations

注释类型 Column

@Target(value=FIELD)
 @Retention(value=RUNTIME)
public @interface Column

The annotation is used for mapping the column and field of Java Bean.

作者:

braisdom

可选元素概要

可选元素

限定符和类型	可选元素和说明
String	defaultValue Returns invariable value for the column, it means that the invariable value will replace the real value of domain model when inserting or updating.
boolean	insertable Indicates Whether the field can be inserted.
String	name Defines a new column name of database when the field name is out of the order.
JDBCType	sqlType
Class<? extends ColumnTransition>	transition Customize a column transition for the column.
boolean	updatable Indicates Whether the field can be updated.

元素详细资料

name

public abstract String name

Defines a new column name of database when the field name is out of the order.

返回:

默认值:

""

transition

public abstract Class<? extends ColumnTransition> transition

Customize a column transition for the column.

返回:

另请参阅:

ColumnTransition

默认值:

com.github.braisdom.objsql.transition.ColumnTransition.class

insertable

public abstract boolean insertable

Indicates Whether the field can be inserted. The field value will be skipped at inserting when return false

返回:

默认值:

true

updatable

public abstract boolean updatable

Indicates Whether the field can be updated. The field value will be skipped at updating when returning false

返回:

默认值:

true

defaultValue

public abstract String defaultValue

Returns invariable value for the column, it means that the invariable value will replace the real value of domain model when inserting or updating. Commonly, it is used for default value of column database-related

返回:

an invariable value

默认值:

""

sqlType

public abstract JDBCType sqlType

默认值:

java.sql.JDBCType.NULL