CamelInternalProcessorAdvice (Camel :: API 3.20.9 API)

Type Parameters:

T -
```
public interface CamelInternalProcessorAdvice<T>
```
An advice (before and after) to execute cross cutting functionality in the Camel routing engine.
The Camel routing engine will execute the before(org.apache.camel.Exchange) and after(org.apache.camel.Exchange, Object) methods during routing in correct order.

See Also:

org.apache.camel.processor.CamelInternalProcessor

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`after(Exchange exchange, T data)`	Callback executed after processing a step in the route.
`T`	`before(Exchange exchange)`	Callback executed before processing a step in the route.
`default boolean`	`hasState()`	Whether this advice has state or not.

- Method Detail
  - before
```
T before(Exchange exchange)
  throws Exception
```
    Callback executed before processing a step in the route.
    
    Parameters:
    
    exchange - the current exchange
    
    Returns:
    
    any state to keep and provide as data to the after(org.apache.camel.Exchange, Object) method, or use null for no state.
    
    Throws:
    
    Exception - is thrown if error during the call.
  - after
```
void after(Exchange exchange,
           T data)
    throws Exception
```
    Callback executed after processing a step in the route.
    
    Parameters:
    
    exchange - the current exchange
    
    data - the state, if any, returned in the before(org.apache.camel.Exchange) method.
    
    Throws:
    
    Exception - is thrown if error during the call.
  - hasState
```
default boolean hasState()
```
    Whether this advice has state or not.