Function: onQuery()

function onQuery<R, P, T>(type: T): OnQueryDecorator<R, P, T>;

Defined in: src/wirestate-lit/queries/on-query.ts:54

Decorator for Lit element methods that handle a specific query.

Type Parameters

Type Parameter	Default type
R	unknown
P	unknown
T extends QueryType	QueryType

Parameters

Parameter	Type	Description
type	T	Query type to handle.

Returns

OnQueryDecorator<R, P, T>

A method decorator function.

Remarks

The handler is registered when the host connects, unregistered when it disconnects, and re-registered when the nearest container context changes. Query handlers are stack-based on the active query bus.

Example

class MyElement extends LitElement {
  @onQuery("GET_USER_NAME")
  private onGetUserName(payload: QueryPayload) {
    return "Alice";
  }
}