MTC (Ignite 2.17.0)

java.lang.Object
- org.apache.ignite.internal.processors.tracing.MTC

```
public class MTC
extends Object
```
Mapped tracing context. Thread local context which holding the information for tracing.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class MTC.TraceSurroundings
Helper for managing of span life cycle.

Constructor Summary

Constructors
Constructor Description

MTC()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static @NotNull Span`	`span()`
`static MTC.TraceSurroundings`	`support(Span startSpan)`	Attach given span to current thread if it isn't null or NOOP_SPAN.
`static MTC.TraceSurroundings`	`supportContinual(Span startSpan)`	Attach given span to current thread if it isn't null or NOOP_SPAN.
`static void`	`supportInitial(Span startSpan)`	Support initial span.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MTC
```
public MTC()
```
- Method Detail
  - span
```
@NotNull
public static @NotNull Span span()
```
    Returns:
    
    Span which corresponded to current thread or null if it doesn't not set.
  - support
```
public static MTC.TraceSurroundings support(Span startSpan)
```
    Attach given span to current thread if it isn't null or NOOP_SPAN. Detach given span, close it and return previous span when MTC.TraceSurroundings.close() would be called.
    
    Parameters:
    
    startSpan - Span which should be added to current thread.
    
    Returns:
    
    MTC.TraceSurroundings for manage span life cycle or null in case of null or no-op span.
  - supportInitial
```
public static void supportInitial(Span startSpan)
```
    Support initial span.
    
    Parameters:
    
    startSpan - Span which should be added to current thread.
  - supportContinual
```
public static MTC.TraceSurroundings supportContinual(Span startSpan)
```
    Attach given span to current thread if it isn't null or NOOP_SPAN.
    
    Parameters:
    
    startSpan - Span which should be added to current thread.
    
    Returns:
    
    MTC.TraceSurroundings for manage span life cycle or null in case of null or no-op span.