Span
Related Docs:
class Span
| package trace
A Span representing an operation that will not start processing immediately after the Span is created but rather when the start method is called.
A Span representing an operation that will not start processing immediately after the Span is created but rather when the start method is called. Additionally to a regular Span, a Delayed Span will automatically track the wait time metric and add a "span.started" mark on the Span when the Start method is called. The three relevant instants when working with Delayed Spans are:
Created |=====================| <- Wait Time |====================================================| <- Elapsed Time |==============================| <- Processing Time Started Finished
Unless metrics tracking is disabled, a Delayed Span will track the "span.wait-time" metric with the time between creating and starting the Span, and the "span.elapsed-time" tracking the time between creating and finishing the Span. The "span.processing-time" remains the same, tracking the time between starting and finishing the Span.
Represents a Span that has already been finished and should be exposed to the SpanReporters.
Describes the kind of operation being represented by a Span.
Represents a connection between two different Spans that might belong to different traces.
A writable Span created on this process and implementing all the capabilities defined by the Span interface.
Represents an event that happens at a given instant and is related to a Span.
Represents an event that happens at a given instant and is related to a Span. The key is a unique identifier of the type of event being associated.
Describes a Span's position within the trace they belong to.
A immutable, no-op Span that holds information from a Span that was initially created in another process and then transferred to this process.
A immutable, no-op Span that holds information from a Span that was initially created in another process and then transferred to this process. This is the minimal representation of a Span that gets transferred through Context propagation channels. A remote Span completely ignores all writes made to it.
A immutable, no-op Span that can be used to signal that there is no Span information.
A immutable, no-op Span that can be used to signal that there is no Span information. An empty Span completely ignores all writes made to it.
Key used to store and retrieve Span instances from the Context
Metrics tracked by the Span implementation.
Tag keys used by the implementations to record Span and metric tags.