Struct StreamNode

pub struct StreamNode {
    pub operator_id: u64,
    pub input: Vec<StreamNode>,
    pub stream_key: Vec<u32>,
    pub append_only: bool,
    pub identity: String,
    pub fields: Vec<Field>,
    pub node_body: Option<NodeBody>,
}

Fields

operator_id: u64

The id for the operator. This is local per mview. TODO: should better be a uint32.

input: Vec<StreamNode>

Child node in plan aka. upstream nodes in the streaming DAG

stream_key: Vec<u32>

append_only: bool

identity: String

fields: Vec<Field>

The schema of the plan node

node_body: Option<NodeBody>

Implementations

impl StreamNode

pub fn get_operator_id(&self) -> u64

pub fn get_input(&self) -> &Vec<StreamNode>

pub fn get_stream_key(&self) -> &Vec<u32>

pub fn get_append_only(&self) -> bool

pub fn get_identity(&self) -> &String

pub fn get_fields(&self) -> &Vec<Field>

pub fn get_node_body(&self) -> Result<&NodeBody, PbFieldNotFound>

impl StreamNode

pub fn find_stream_source(&self) -> Option<u32>

Find the external stream source info inside the stream node, if any.

Returns source_id.

pub fn find_source_backfill(&self) -> Option<u32>

Find the external stream source info inside the stream node, if any.

Returns source_id.

Trait Implementations

impl Clone for StreamNode

fn clone(&self) -> StreamNode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StreamNode

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

Formats the value using the given formatter.

impl Default for StreamNode

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StreamNode

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Message for StreamNode

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for StreamNode

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for StreamNode

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StreamNode