| Interface | Description | 
|---|---|
| TracingInvocationInstrumenterFactory | 
 An factory interface for tracing invocation instrumentation, factory method decides if instrumentation is needed. 
 | 
| Class | Description | 
|---|---|
| MdcInstrumenter | 
 A function that instruments invocations with the Mapped Diagnostic Context for Slf4j. 
 | 
| OpenTracingInvocationInstrumenter | 
 Tracing invocation instrument for OpenTracing. 
 | 
| ScopePropagationPublisher<T> | 
 A  
Publisher that just propagates tracing state without creating a new span. | 
| TracingPublisher<T> | 
 A reactive streams publisher that traces. 
 |