FallbackConverter (Camel :: API 3.20.8 API)

```
@Retention(RUNTIME)
@Documented
@Target({TYPE,METHOD})
@Deprecated
public @interface FallbackConverter
```
Deprecated.
use @Converter(fallback = true) instead

An annotation used to mark methods to indicate code capable of being a fallback converter which are then auto-discovered using the Type Conversion Support.
The difference between a regular @Converter and a @FallbackConverter is that the fallback is resolved at last if no regular converter could be found. Also the method signature is scoped to be generic to allow handling a broader range of types trying to be converted. The fallback converter can just return null if it can not handle the types to convert from/to.

See Also:

GenericFileConverter for an example.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`boolean`	`allowNull`	Deprecated. Whether or not returning `null` is a valid response.
`boolean`	`canPromote`	Deprecated. Whether or not this fallback converter can be promoted to a first class type converter.

- Element Detail
  - allowNull
```
boolean allowNull
```
    Deprecated.
    
    Whether or not returning null is a valid response.
    
    Default:
    
    false
- - canPromote
```
boolean canPromote
```
    Deprecated.
    
    Whether or not this fallback converter can be promoted to a first class type converter.
    
    Default:
    
    false