SpanContext class
Immutable representation of a SpanContext. A SpanContext contains the state that must propagate to child Spans and across process boundaries. SpanContext follows the W3C Trace Context specification.
Constructors
-
SpanContext.fromJson(Map<
String, dynamic> json) -
Creates a SpanContext instance from a JSON representation.
factory
Properties
- hashCode → int
-
The hash code for this object.
no setteroverride
- isRemote → bool
-
Returns true if this span context was propagated from a remote parent.
no setter
- isValid → bool
-
Returns true if this span context is valid.
no setter
- parentSpanId → SpanId?
-
The parent SpanId for this span context, if any.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- spanId → SpanId
-
The SpanId for this span context.
final
- traceFlags → TraceFlags
-
The TraceFlags for this span context.
final
- traceId → TraceId
-
The TraceId for this span context.
final
- traceState → TraceState?
-
The TraceState for this span context.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, dynamic> - Converts this SpanContext to a JSON-serializable map.
-
toString(
) → String -
A string representation of this object.
override
-
withTraceFlags(
TraceFlags flags) → SpanContext - Creates a new SpanContext with updated trace flags.
-
withTraceState(
TraceState state) → SpanContext - Creates a new SpanContext with updated trace state.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override