io.asyncer.r2dbc.mysql.api

Interface MySqlNativeTypeMetadata

public interface MySqlNativeTypeMetadata

An interface for MySQL native type metadata.

Since:

1.1.3

See Also:

MySqlReadableMetadata.getNativeTypeMetadata()

Method Summary

Modifier and Type	Method and Description
int	getTypeId() Gets the native type identifier, e.g.
boolean	isBinary() Checks if the value is binary data.
boolean	isEnum() Checks if the value type is enum.
boolean	isNotNull() Checks if the value is not null.
boolean	isSet() Checks if the value type is set.
boolean	isUnsigned() Checks if the value is an unsigned number.

Method Detail

getTypeId

int getTypeId()

Gets the native type identifier, e.g. 3 for INT.

Note: It can not check if the current type is unsigned or not, and some types will use the same identifier. e.g. TEXT and BLOB are using 252.

Returns:

the native type identifier

isNotNull

boolean isNotNull()

Checks if the value is not null.

Returns:

if value is not null

isUnsigned

boolean isUnsigned()

Checks if the value is an unsigned number. e.g. INT UNSIGNED, BIGINT UNSIGNED.

Note: IEEE-754 floating types (e.g. DOUBLE/FLOAT) do not support it in MySQL 8.0+. When creating a column as an unsigned floating type, the server may report a warning.

Returns:

if value is an unsigned number

isBinary

boolean isBinary()

Checks if the value is binary data.

Returns:

if value is binary data

isEnum

boolean isEnum()

Checks if the value type is enum.

Returns:

if value is an enum

isSet

boolean isSet()

Checks if the value type is set.

Returns:

if value is a set