Struct RowMetadata 

pub struct RowMetadata {
    pub version: Option<u64>,
    pub ttl: Option<u64>,
    pub tags: HashMap<String, String>,
}

Row metadata

Fields

version: Option<u64>

Row version/timestamp

ttl: Option<u64>

Row TTL (time to live)

tags: HashMap<String, String>

Row tags or labels

Implementations

impl RowMetadata

pub fn new() -> Self

Create new row metadata

pub fn with_version(self, version: u64) -> Self

Set version

pub fn with_ttl(self, ttl: u64) -> Self

Set TTL

pub fn with_tag(self, key: String, value: String) -> Self

Add tag

pub fn to_json(&self) -> Value

Convert to JSON representation

Trait Implementations

impl Clone for RowMetadata

fn clone(&self) -> RowMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowMetadata

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

Formats the value using the given formatter.

impl Default for RowMetadata

fn default() -> RowMetadata

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RowMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RowMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.