Query class

A received query on a queryable key expression.

Wraps a heap-allocated z_owned_query_t. The query holds a cloned reference to the original query from the callback. Call dispose when done to release native resources (even if no reply was sent).

Constructors

Query({required int handle, required String keyExpr, required String parameters, Uint8List? payloadBytes, Uint8List? attachmentBytes})

Creates a Query from NativePort message data.

Properties

attachmentBytes → Uint8List?

The raw attachment bytes, or null if no attachment was present.

final

handle → int

The native pointer handle for this query (used by reply methods).

no setter

hashCode → int

The hash code for this object.

no setter, inherited

keyExpr → String

The key expression of this query.

final

parameters → String

The query parameters (selector portion after '?'). Empty if none.

final

payloadBytes → Uint8List?

The optional payload attached to this query.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

dispose() → void

Releases the native query resources.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reply(String keyExpr, String value, {Encoding? encoding, ZBytes? attachment}) → void

Sends a reply to this query with a string value.

replyBytes(String keyExpr, ZBytes payload, {Encoding? encoding, ZBytes? attachment}) → void

Sends a reply to this query with a ZBytes payload.

replyErr(String value, {Encoding? encoding}) → void

Sends an error reply to this query with a string value.

replyErrBytes(ZBytes payload, {Encoding? encoding}) → void

Sends an error reply to this query with a ZBytes payload.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited