SamplerFunctions (Brave 5.13.9 API)

java.lang.Object
- brave.sampler.SamplerFunctions

```
public final class SamplerFunctions
extends Object
```
Convenience sampling functions.

Since:

5.8

See Also:

SamplerFunction

Constructor Summary

Constructors
Constructor Description

SamplerFunctions()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> SamplerFunction<T>`	`deferDecision()`	Ignores the argument and returns null.
`static <T> SamplerFunction<T>`	`neverSample()`	Ignores the argument and returns false.
`static <T> SamplerFunction<T>`	`nullSafe(SamplerFunction<T> delegate)`	Returns a function that returns null on null input instead of invoking the delegate with null.

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

- Constructor Detail
  - SamplerFunctions
```
public SamplerFunctions()
```
- Method Detail
  - nullSafe
```
public static <T> SamplerFunction<T> nullSafe(SamplerFunction<T> delegate)
```
    Returns a function that returns null on null input instead of invoking the delegate with null.
    
    Since:
    
    5.8
  - deferDecision
```
public static <T> SamplerFunction<T> deferDecision()
```
    Ignores the argument and returns null. This is typically used to defer to the trace ID sampler.
    
    Since:
    
    5.8
  - neverSample
```
public static <T> SamplerFunction<T> neverSample()
```
    Ignores the argument and returns false. This means it will never start new traces.
    For example, you may wish to only capture traces if they originated from an inbound server request. Such a policy would filter out client requests made during bootstrap.
    
    Since:
    
    5.8