LiveQueryDef

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:140

A query definition representing a blueprint for a reactive query.

Query definitions are created by queryDb, computed, and signal. They’re lightweight and can be defined at module scope. The actual query instance (which holds state) is created lazily when you use the definition with a Store.

Multiple uses of the same definition share a single instance via reference counting.

Extended by

• SignalDef

Type Parameters

TResult

TResult

The type of value the query returns

TTag

TTag extends string = "def"

Internal discriminator tag (‘def’ for queries, ‘signal-def’ for signals)

Properties

_tag

_tag: TTag

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:141

---

hash

hash: string

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:147

Unique identifier derived from the query string or explicit deps; used for caching

---

label

label: string

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:145

Human-readable label for debugging and devtools

---

make()

make: (ctx, otelContext?) => RcRef<LiveQuery<TResult> | ISignal<TResult>>

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:143

Creates a reference-counted query instance bound to a Store’s reactivity graph

Parameters

ctx

ReactivityGraphContext

otelContext?

Context

Returns

RcRef<LiveQuery<TResult> | ISignal<TResult>>

Methods

[symbol]()

[symbol](that): boolean

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:148

Parameters

that

LiveQueryDef<TResult, TTag>

Returns

boolean

---

[symbol]()

[symbol](): number

Defined in: packages/@livestore/livestore/src/live-queries/base-class.ts:149

Returns

number