TraceSpan class

A span represents a single operation within a trace.

Spans can be nested to form a trace tree. Often, a trace contains a root span that describes the end-to-end latency, and one or more subspans for its sub-operations. A trace can also contain multiple root spans, or none at all. Spans do not need to be contiguous—there may be gaps or overlaps between spans in a trace.

Constructors

TraceSpan({Attributes? attributes, int? childSpanCount, TruncatableString? displayName, String? endTime, String? name, String? parentSpanId, bool? sameProcessAsParentSpan, String? spanId, String? spanKind, String? startTime, Status? status})

TraceSpan.fromJson(Map json_)

Properties

attributes ↔ Attributes?

A set of attributes on the span.

getter/setter pair

childSpanCount ↔ int?

An optional number of child spans that were generated while this span was active.

getter/setter pair

displayName ↔ TruncatableString?

A description of the span's operation (up to 128 bytes).

getter/setter pair

endTime ↔ String?

The end time of the span.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

name ↔ String?

The resource name of the span in the following format: projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/SPAN_ID is a unique identifier for a trace within a project; it is a 32-character hexadecimal encoding of a 16-byte array.

getter/setter pair

parentSpanId ↔ String?

The [SPAN_ID] of this span's parent span.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sameProcessAsParentSpan ↔ bool?

(Optional) Set this parameter to indicate whether this span is in the same process as its parent.

getter/setter pair

spanId ↔ String?

The [SPAN_ID] portion of the span's resource name.

getter/setter pair

spanKind ↔ String?

Distinguishes between spans generated in a particular context.

getter/setter pair

startTime ↔ String?

The start time of the span.

getter/setter pair

status ↔ Status?

An optional final status for this span.

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited