| Interface | Description | 
|---|---|
| SimpleValueReceiver | 
 No-op implementation that makes it easier to use with Lambdas. 
 | 
| UnwrapByDefaultValueExtractor<T> | 
 Interface based alternative for unwrap by default semantics. 
 | 
| ValueExtractorRegistry | 
 Registry of value extractors. 
 | 
| Class | Description | 
|---|---|
| DefaultValueExtractors | 
 The default value extractors. 
 |