Struct JsObservableQuery 

pub struct JsObservableQuery { /* private fields */ }

JavaScript-friendly observable query wrapper. Uses re-query strategy for optimal performance with indexes.

Implementations

impl JsObservableQuery

pub fn subscribe(&mut self, callback: Function) -> Function

Subscribes to query changes.

The callback receives the complete current result set as a JavaScript array. It is called whenever data changes (not immediately - use getResult for initial data). Returns an unsubscribe function.

pub fn get_result(&self) -> JsValue

Returns the current result as a JavaScript array.

pub fn get_result_binary(&self) -> BinaryResult

Returns the current result as a binary buffer for zero-copy access.

pub fn get_schema_layout(&self) -> SchemaLayout

Returns the schema layout for decoding binary results.

pub fn length(&self) -> usize

Returns the number of rows in the result.

pub fn is_empty(&self) -> bool

Returns whether the result is empty.

pub fn subscription_count(&self) -> usize

Returns the number of active subscriptions.

Trait Implementations

impl From<JsObservableQuery> for JsValue

fn from(value: JsObservableQuery) -> Self

Converts to this type from the input type.

impl FromWasmAbi for JsObservableQuery

type Abi = u32

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: u32) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for JsObservableQuery

type Abi = u32

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for JsObservableQuery

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<JsObservableQuery>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for JsObservableQuery

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for JsObservableQuery

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for JsObservableQuery

type Abi = u32

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<JsObservableQuery>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for JsObservableQuery

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<JsObservableQuery>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl TryFromJsValue for JsObservableQuery

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for JsObservableQuery

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[JsObservableQuery]>

impl VectorIntoWasmAbi for JsObservableQuery

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[JsObservableQuery]>) -> Self::Abi

impl WasmDescribe for JsObservableQuery

fn describe()

impl WasmDescribeVector for JsObservableQuery

fn describe_vector()

impl SupportsConstructor for JsObservableQuery

impl SupportsInstanceProperty for JsObservableQuery

impl SupportsStaticProperty for JsObservableQuery