Traces (Zipkin Core Library 2.23.0 API)

All Known Implementing Classes:

InMemoryStorage
```
public interface Traces
```
Allows readback of traces by ID, as written by a SpanConsumer.
Specifically, this provides apis present when search is disabled.
Note: This is not considered a user-level Api, rather an Spi that can be used to bind user-level abstractions such as futures or observables.

Since:

2.17

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Call<List<Span>>`	`getTrace(String traceId)`	Retrieves spans that share a 128-bit trace id with no ordering expectation or empty if none are found.
`Call<List<List<Span>>>`	`getTraces(Iterable<String> traceIds)`	Retrieves any traces with the specified IDs.

- Method Detail
  - getTrace
```
Call<List<Span>> getTrace(String traceId)
```
    Retrieves spans that share a 128-bit trace id with no ordering expectation or empty if none are found.
    When strict trace ID is disabled, spans with the same right-most 16 characters are returned even if the characters to the left are not.
    Implementations should use Span.normalizeTraceId(String) to ensure consistency.
    
    Parameters:
    
    traceId - the trace ID
  - getTraces
```
Call<List<List<Span>>> getTraces(Iterable<String> traceIds)
```
    Retrieves any traces with the specified IDs. Results return in any order, and can be empty.
    When strict trace ID is disabled, spans with the same right-most 16 characters are returned even if the characters to the left are not.
    Implementations should use Span.normalizeTraceId(String) on each input trace ID to ensure consistency.
    
    Parameters:
    
    traceIds - a list of unique trace IDs.
    
    Returns:
    
    traces matching the supplied trace IDs, in any order