C - carrier of propagation fields, such as an http request.public static interface Propagator.Getter<C>
TextMapPropagator to read propagated fields from a
carrier.
Getter is stateless and allows to be saved as a constant to avoid runtime
allocations.
| Modifier and Type | Method and Description |
|---|---|
String |
get(C carrier,
String key)
Returns the first value of the given propagation
key or returns
null. |
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