ninja.params

Interface ArgumentExtractor<T>

All Known Implementing Classes:

ArgumentExtractors.AttributeExtractor, ArgumentExtractors.BodyAsExtractor, ArgumentExtractors.ContextExtractor, ArgumentExtractors.FlashExtractor, ArgumentExtractors.ParamExtractor, ArgumentExtractors.PathParamExtractor, ArgumentExtractors.SessionExtractor, ArgumentExtractors.SessionParamExtractor, ArgumentExtractors.ValidationExtractor, ParsingArgumentExtractor, ValidatingArgumentExtractor

public interface ArgumentExtractor<T>

Extracts a controller argument from the context

Author:

James Roper

Method Summary

Modifier and Type	Method and Description
T	extract(Context context) Extract the argument from the context
java.lang.Class<T>	getExtractedType() Get the type of the argument that is extracted
java.lang.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

java.lang.Class<T> getExtractedType()

Get the type of the argument that is extracted

Returns:

The type of the argument that is being extracted

getFieldName

java.lang.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