Enum google_api_proto::google::cloud::bigquery::datapolicies::v1::data_masking_policy::PredefinedExpression

#[repr(i32)]
pub enum PredefinedExpression {
    Unspecified = 0,
    Sha256 = 3,
    AlwaysNull = 5,
    DefaultMaskingValue = 7,
    LastFourCharacters = 9,
    FirstFourCharacters = 10,
    EmailMask = 12,
    DateYearMask = 13,
}

The available masking rules. Learn more here: https://cloud.google.com/bigquery/docs/column-data-masking-intro#masking_options.

Variants

Unspecified = 0

Default, unspecified predefined expression. No masking will take place since no expression is specified.

Sha256 = 3

Masking expression to replace data with SHA-256 hash.

AlwaysNull = 5

Masking expression to replace data with NULLs.

DefaultMaskingValue = 7

Masking expression to replace data with their default masking values. The default masking values for each type listed as below:

• STRING: “”
• BYTES: b’’
• INTEGER: 0
• FLOAT: 0.0
• NUMERIC: 0
• BOOLEAN: FALSE
• TIMESTAMP: 1970-01-01 00:00:00 UTC
• DATE: 1970-01-01
• TIME: 00:00:00
• DATETIME: 1970-01-01T00:00:00
• GEOGRAPHY: POINT(0 0)
• BIGNUMERIC: 0
• ARRAY: []
• STRUCT: NOT_APPLICABLE
• JSON: NULL

LastFourCharacters = 9

Masking expression shows the last four characters of text. The masking behavior is as follows:

• If text length > 4 characters: Replace text with XXXXX, append last four characters of original text.
• If text length <= 4 characters: Apply SHA-256 hash.

FirstFourCharacters = 10

Masking expression shows the first four characters of text. The masking behavior is as follows:

• If text length > 4 characters: Replace text with XXXXX, prepend first four characters of original text.
• If text length <= 4 characters: Apply SHA-256 hash.

EmailMask = 12

Masking expression for email addresses. The masking behavior is as follows:

• Syntax-valid email address: Replace username with XXXXX. For example, cloudysanfrancisco@gmail.com becomes XXXXX@gmail.com.
• Syntax-invalid email address: Apply SHA-256 hash.

For more information, see Email mask.

DateYearMask = 13

Masking expression to only show the year of Date, DateTime and TimeStamp. For example, with the year 2076:

• DATE : 2076-01-01
• DATETIME : 2076-01-01T00:00:00
• TIMESTAMP : 2076-01-01 00:00:00 UTC

Truncation occurs according to the UTC time zone. To change this, adjust the default time zone using the time_zone system variable. For more information, see the System> variables reference.

Implementations

impl PredefinedExpression

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of PredefinedExpression.

pub fn from_i32(value: i32) -> Option<PredefinedExpression>

👎Deprecated: Use the TryFrom<i32> implementation instead

Converts an i32 to a PredefinedExpression, or None if value is not a valid variant.

impl PredefinedExpression

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for PredefinedExpression

fn clone(&self) -> PredefinedExpression

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PredefinedExpression

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PredefinedExpression

fn default() -> PredefinedExpression

Returns the “default value” for a type.

impl From<PredefinedExpression> for i32

fn from(value: PredefinedExpression) -> i32

Converts to this type from the input type.

impl Hash for PredefinedExpression

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PredefinedExpression

fn cmp(&self, other: &PredefinedExpression) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for PredefinedExpression

fn eq(&self, other: &PredefinedExpression) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for PredefinedExpression

fn partial_cmp(&self, other: &PredefinedExpression) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<i32> for PredefinedExpression

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<PredefinedExpression, UnknownEnumValue>

Performs the conversion.

impl Copy for PredefinedExpression

impl Eq for PredefinedExpression

impl StructuralPartialEq for PredefinedExpression