ArgumentExtractor (ninja-core 7.0.1-SNAPSHOT API)

All Known Implementing Classes:

ArgumentExtractors.AttributeExtractor, ArgumentExtractors.BodyAsExtractor, ArgumentExtractors.ContextExtractor, ArgumentExtractors.FileItemParamExtractor, ArgumentExtractors.FileItemParamsExtractor, ArgumentExtractors.FileParamExtractor, ArgumentExtractors.FileParamsExtractor, ArgumentExtractors.FlashExtractor, ArgumentExtractors.HeaderExtractor, ArgumentExtractors.HeadersExtractor, ArgumentExtractors.InputStreamParamExtractor, ArgumentExtractors.InputStreamParamsExtractor, ArgumentExtractors.ParamExtractor, ArgumentExtractors.ParamsExtractor, ArgumentExtractors.PathParamExtractor, ArgumentExtractors.SessionExtractor, ArgumentExtractors.SessionParamExtractor, ArgumentExtractors.ValidationExtractor, ParsingArgumentExtractor, ParsingArrayExtractor, ValidatingArgumentExtractor, WebSocketHandshakeExtractor
```
public interface ArgumentExtractor<T>
```
Extracts a controller argument from the context

Author:

James Roper

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`extract(Context context)`	Extract the argument from the context
`Class<T>`	`getExtractedType()`	Get the type of the argument that is extracted
`String`	`getFieldName()`	Get the field name that is being extracted, if this value is extracted from a field

- Method Detail
  - extract
```
T extract(Context context)
```
    Extract the argument from the context
    
    Parameters:
    
    context - The argument to extract
    
    Returns:
    
    The extracted argument
  - getExtractedType
```
Class<T> getExtractedType()
```
    Get the type of the argument that is extracted
    
    Returns:
    
    The type of the argument that is being extracted
  - getFieldName
```
String getFieldName()
```
    Get the field name that is being extracted, if this value is extracted from a field
    
    Returns:
    
    The field name, or null if the argument isn't extracted from a named field