BaggageField.ValueUpdater (Brave 5.13.9 API)

Enclosing class:

BaggageField
```
public static interface BaggageField.ValueUpdater
```
Used to decouple baggage value updates from TraceContext or TraceContextOrSamplingFlags storage.
Note: This type is safe to implement as a lambda, or use as a method reference as it is effectively a FunctionalInterface. It isn't annotated as such because the project has a minimum Java language level 6.

Since:

5.12

Field Summary

Fields
Modifier and Type Field Description

static BaggageField.ValueUpdater NOOP

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`updateValue(BaggageField field, String value)`	Updates the value of the field, or ignores if read-only or not configured.

- Field Detail
  - NOOP
```
static final BaggageField.ValueUpdater NOOP
```
    Since:
    
    5.12
- Method Detail
  - updateValue
```
boolean updateValue(BaggageField field,
                    @Nullable
                    String value)
```
    Updates the value of the field, or ignores if read-only or not configured.
    
    Parameters:
    
    value - null is an attempt to remove the value
    
    Returns:
    
    true if the underlying state changed
    
    Since:
    
    5.12
    
    See Also:
    
    BaggageField.updateValue(TraceContext, String), BaggageField.updateValue(TraceContextOrSamplingFlags, String)