Struct WriteSpec 

pub struct WriteSpec {
    pub write_mode: WriteMode,
    pub key: Vec<String>,
    pub delete_marker: Option<DeleteMarker>,
}

Shared write-mode config, embedded in each upsert-capable sink config via #[serde(flatten)] so write_mode / key / delete_marker appear at the sink-config top level.

Fields

write_mode: WriteMode

Append (default), upsert, or delete.

key: Vec<String>

Key columns. Required and non-empty for upsert/delete; ignored for append.

delete_marker: Option<DeleteMarker>

Optional. Upsert only: rows whose field matches one of values are deletes; all others are upserts. The marker field is stripped from upsert rows before writing.

Implementations

impl WriteSpec

pub fn validate(&self) -> Result<(), FaucetError>

Validate internal consistency at config-load time.

pub fn dedups_by_key(&self) -> bool

Whether this spec makes writes converge by key — write_mode: upsert or delete with a non-empty key. The canonical implementation of Sink::dedups_by_key for sinks that flatten a WriteSpec into their config.

pub fn is_overwrite(&self) -> bool

Whether this spec requests full-destination replacement (WriteMode::Overwrite). The canonical implementation of Sink::is_overwrite for sinks that flatten a WriteSpec into their config.

Trait Implementations

impl Clone for WriteSpec

fn clone(&self) -> WriteSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WriteSpec

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

Formats the value using the given formatter.

impl Default for WriteSpec

fn default() -> WriteSpec

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for WriteSpec

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for WriteSpec

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl Serialize for WriteSpec

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

where __S: Serializer,

Serialize this value into the given Serde serializer.