Enum google_cloud_googleapis::spanner::v1::TypeCode

#[repr(i32)]
pub enum TypeCode {
    Unspecified,
    Bool,
    Int64,
    Float64,
    Timestamp,
    Date,
    String,
    Bytes,
    Array,
    Struct,
    Numeric,
    Json,
}

TypeCode is used as part of [Type][google.spanner.v1.Type] to indicate the type of a Cloud Spanner value.

Each legal value of a type can be encoded to or decoded from a JSON value, using the encodings described below. All Cloud Spanner values can be null, regardless of type; nulls are always encoded as a JSON null.

Variants

Unspecified

Not specified.

Bool

Encoded as JSON true or false.

Int64

Encoded as string, in decimal format.

Float64

Encoded as number, or the strings "NaN", "Infinity", or "-Infinity".

Timestamp

Encoded as string in RFC 3339 timestamp format. The time zone must be present, and must be "Z".

If the schema has the column option allow_commit_timestamp=true, the placeholder string "spanner.commit_timestamp()" can be used to instruct the system to insert the commit timestamp associated with the transaction commit.

Date

Encoded as string in RFC 3339 date format.

String

Encoded as string.

Bytes

Encoded as a base64-encoded string, as described in RFC 4648, section 4.

Array

Encoded as list, where the list elements are represented according to [array_element_type][google.spanner.v1.Type.array_element_type].

Struct

Encoded as list, where list element i is represented according to [struct_type.fields[i]][google.spanner.v1.StructType.fields].

Numeric

Encoded as string, in decimal format or scientific notation format.
Decimal format:
\[+-]Digits[.[Digits]\] or
\[+-][Digits\].Digits

Scientific notation:
\[+-]Digits[.[Digits]][ExponentIndicator[+-]Digits\] or
\[+-][Digits].Digits[ExponentIndicator[+-]Digits\]
(ExponentIndicator is "e" or "E")

Json

Encoded as a JSON-formatted ‘string’ as described in RFC 7159. The following rules will be applied when parsing JSON input:

• Whitespace will be stripped from the document.
• If a JSON object has duplicate keys, only the first key will be preserved.
• Members of a JSON object are not guaranteed to have their order preserved. JSON array elements will have their order preserved.

Implementations

impl TypeCode

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of TypeCode.

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

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

Trait Implementations

impl Clone for TypeCode

fn clone(&self) -> TypeCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypeCode

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

Formats the value using the given formatter.

impl Default for TypeCode

fn default() -> TypeCode

Returns the “default value” for a type.

impl From<TypeCode> for i32

fn from(value: TypeCode) -> i32

Performs the conversion.

impl Hash for TypeCode

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, 

Feeds a slice of this type into the given Hasher.

impl Ord for TypeCode

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<TypeCode> for TypeCode

fn eq(&self, other: &TypeCode) -> 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 !=.

impl PartialOrd<TypeCode> for TypeCode

fn partial_cmp(&self, other: &TypeCode) -> 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 Copy for TypeCode

impl Eq for TypeCode

impl StructuralEq for TypeCode

impl StructuralPartialEq for TypeCode