Delta class

An incremental change set (protocol.md § Delta).

Constructors

Delta({required Epoch baseEpoch, required Epoch epoch, List<DeltaOp> ops = const []})

const

Delta.next(Epoch baseEpoch, [List<DeltaOp> ops = const []])

The next sequential delta after baseEpoch carrying ops.

factory

Properties

baseEpoch → int

final

epoch → int

final

hashCode → int

The hash code for this object.

no setter, override

ops → List<DeltaOp>

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

span → int

The accepted-event span this delta advances: epoch - baseEpoch (usually 1, > 1 for a coalesced multi-epoch-span delta, #lzsync). Saturates at 0 for a malformed backward delta. Mirrors Delta::span in lazily-rs.

no setter

Methods

applyStatus(Epoch lastEpoch) → DeltaApplyStatus

lean applyDelta: apply iff sequential, otherwise fail closed.

filterReadable(PeerPermissions permissions, PeerId peer) → Delta

Drop ops whose target node(s) are unreadable by peer (omission).

isNextAfter(Epoch lastEpoch) → bool

lean isSequentialAfter: true iff this delta continues immediately after lastEpoch.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

toWire() → Map<String, Object>

writeJson(StringSink sink) → void

Streaming JSON encoder (#lzdartstreamingjson): writes the canonical JSON for this Delta directly into sink, avoiding the intermediate Map<String, Object> and the ops List allocation that toWire would produce. Byte-identical to jsonEncode(toWire()).

Operators

operator ==(Object other) → bool

The equality operator.

override

Static Methods

fromWire(Object? value) → Delta