Struct StreamingUpdate 

pub struct StreamingUpdate {
    pub item_name: Option<String>,
    pub item_pos: usize,
    pub is_snapshot: bool,
    pub fields: HashMap<String, Option<String>>,
    pub changed_fields: HashMap<String, Option<String>>,
}

Available on crate feature streaming only.

One Lightstreamer item update, owned and free of borrowed schema state.

This is the boundary type between lightstreamer-rs and this crate’s presentation DTOs. It is deliberately constructible by hand so that the field parsers can be exercised from captured IG payloads without a live session — the streaming crate’s own ItemUpdate cannot be built outside that crate.

A None field value means the server said the field has no value (FieldValue::Null); Some("") means it sent an empty one. The two are different answers and are kept apart.

Fields

item_name: Option<String>

The item name the subscription declared for this position, when it declared one. None for a server-resolved item group, where the protocol never transmits names.

item_pos: usize

The item’s 1-based position within the subscription.

is_snapshot: bool

Whether this update carries snapshot content rather than a live change.

fields: HashMap<String, Option<String>>

The complete state of the item after this update, keyed by field name.

changed_fields: HashMap<String, Option<String>>

Only the fields this update actually carried a value for.

Trait Implementations

impl Clone for StreamingUpdate

fn clone(&self) -> StreamingUpdate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamingUpdate

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

Formats the value using the given formatter.

impl Default for StreamingUpdate

fn default() -> StreamingUpdate

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StreamingUpdate

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for StreamingUpdate

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

Formats the value using the given formatter.

impl Eq for StreamingUpdate

impl From<&ItemUpdate> for StreamingUpdate

fn from(update: &ItemUpdate) -> Self

Converts to this type from the input type.

impl From<&StreamingUpdate> for PriceData

fn from(update: &StreamingUpdate) -> Self

Converts to this type from the input type.

impl From<&StreamingUpdate> for PresentationMarketData

fn from(update: &StreamingUpdate) -> Self

Converts to this type from the input type.

impl From<&StreamingUpdate> for ChartData

fn from(update: &StreamingUpdate) -> Self

Converts to this type from the input type.

impl From<&StreamingUpdate> for TradeData

fn from(update: &StreamingUpdate) -> Self

Converts to this type from the input type.

impl From<&StreamingUpdate> for AccountData

fn from(update: &StreamingUpdate) -> Self

Converts to this type from the input type.

impl PartialEq for StreamingUpdate

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for StreamingUpdate

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 StreamingUpdate