FunctionMessageSpanCustomizer (Spring Cloud Sleuth Instrumentation 3.1.11 API)

```
public interface FunctionMessageSpanCustomizer
```
Allows customization of messaging spans for Spring Cloud Function instrumentation.

Since:

3.0.4

Author:

Marcin Grzejszczak

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default void`	`customizeFunctionSpan(Span span, org.springframework.messaging.Message<?> message)`	Customizes the span wrapping the function execution.
`default void`	`customizeInputMessageSpan(Span span, org.springframework.messaging.Message<?> message)`	Customizes the span created after wrapping the input message in a span representation.
`default void`	`customizeOutputMessageSpan(Span span, org.springframework.messaging.Message<?> message)`	Customizes the span created for the output message.

- Method Detail
  - customizeInputMessageSpan
```
default void customizeInputMessageSpan(Span span,
                                       org.springframework.messaging.Message<?> message)
```
    Customizes the span created after wrapping the input message in a span representation.
    
    Parameters:
    
    span - current span to customize
    
    message - received or sent message
  - customizeFunctionSpan
```
default void customizeFunctionSpan(Span span,
                                   org.springframework.messaging.Message<?> message)
```
    Customizes the span wrapping the function execution.
    
    Parameters:
    
    span - current span to customize
    
    message - message to be sent
  - customizeOutputMessageSpan
```
default void customizeOutputMessageSpan(Span span,
                                        org.springframework.messaging.Message<?> message)
```
    Customizes the span created for the output message.
    
    Parameters:
    
    span - current span to customize
    
    message - message to be sent