net.benpl.r2dbc.annotation

注释类型 Column

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

Maps an attribute to a database column.

可选元素概要

可选元素

限定符和类型	可选元素和说明
boolean	autoIncrement If this column is AUTO_INCREMENT.
boolean	noDefault Is default value is available.
boolean	nullable If this column is nullable.
int	precision The number of significant digits.
boolean	primary If this column is primary key.
int	scale The number of digits after the decimal point.
long	size The string size.
String	value The mapping column.

元素详细资料

value

public abstract String value

The mapping column.

默认值:

""

primary

public abstract boolean primary

If this column is primary key.

默认值:

false

autoIncrement

public abstract boolean autoIncrement

If this column is AUTO_INCREMENT.

默认值:

false

size

public abstract long size

The string size. (For reference only, not used internally)

默认值:

0L

scale

public abstract int scale

The number of digits after the decimal point. (For reference only, not used internally)

默认值:

0

precision

public abstract int precision

The number of significant digits. (For reference only, not used internally)

默认值:

0

nullable

public abstract boolean nullable

If this column is nullable.

默认值:

false

noDefault

public abstract boolean noDefault

Is default value is available.

默认值:

false