TraceContext.Extractor (Brave 5.8.0 API)

Enclosing class:

TraceContext
```
public static interface TraceContext.Extractor<C>
```
Used to continue an incoming trace. For example, by reading http headers.

See Also:

Tracer.nextSpan(TraceContextOrSamplingFlags)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TraceContextOrSamplingFlags`	`extract(C carrier)`	Returns either a trace context or sampling flags parsed from the carrier.

- Method Detail
  - extract
```
TraceContextOrSamplingFlags extract(C carrier)
```
    Returns either a trace context or sampling flags parsed from the carrier. If nothing was parsable, sampling flags will be set to SamplingFlags.EMPTY.
    
    Parameters:
    
    carrier - holds propagation fields. For example, an incoming message or http request.