Span 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 might be gaps or overlaps between spans in a trace.
Constructors
- Span({Attributes? attributes, int? childSpanCount, TruncatableString? displayName, String? endTime, Links? links, String? name, String? parentSpanId, bool? sameProcessAsParentSpan, String? spanId, String? spanKind, StackTrace? stackTrace, String? startTime, Status? status, TimeEvents? timeEvents})
- Span.fromJson(Map json_)
Properties
- attributes ↔ Attributes?
-
A set of attributes on the span.
getter/setter pair
- childSpanCount ↔ int?
-
The 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 setterinherited
- links ↔ Links?
-
Links associated with the span.
getter/setter pair
- name ↔ String?
-
The resource name of the span in the following format: *
projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/[SPAN_ID][TRACE_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 setterinherited
- sameProcessAsParentSpan ↔ bool?
-
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
- stackTrace ↔ StackTrace?
-
Stack trace captured at the start of the span.
getter/setter pair
- startTime ↔ String?
-
The start time of the span.
getter/setter pair
- status ↔ Status?
-
The final status for this span.
getter/setter pair
- timeEvents ↔ TimeEvents?
-
A set of time events.
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