Flow PHP

PropagationContext

Read onlyYes

FinalYes

Value object containing propagated context information.

PropagationContext holds both trace context (SpanContext) and application data (Baggage) that can be propagated across process boundaries.

Example usage:

$propagator = new CompositePropagator([
    new W3CTraceContext(),
    new W3CBaggage(),
]);

$ctx = $propagator->extract($carrier);
$spanContext = $ctx->spanContext;
$baggage = $ctx->baggage;

Properties

$baggage : Baggage|null
$spanContext : SpanContext|null

Methods

__construct() : mixed
merge() : self: Merge this context with another, preferring values from the other context.
withBaggage() : self: Create a new context with a different baggage.
withSpanContext() : self: Create a new context with a different span context.

$baggage


        public
            Baggage|null
    $baggage
     = null

$spanContext


        public
            SpanContext|null
    $spanContext
     = null

__construct()


    public
                    __construct([SpanContext|null $spanContext = null ][, Baggage|null $baggage = null ]) : mixed

Parameters

$spanContext : SpanContext|null = null
$baggage : Baggage|null = null

merge()

Merge this context with another, preferring values from the other context.


    public
                    merge(self $other) : self

Parameters

$other : self

Return values

self

withBaggage()

Create a new context with a different baggage.


    public
                    withBaggage(Baggage|null $baggage) : self

Parameters

$baggage : Baggage|null

Return values

self

withSpanContext()

Create a new context with a different span context.


    public
                    withSpanContext(SpanContext|null $spanContext) : self

Parameters

$spanContext : SpanContext|null

Return values

self