javax.ws.rs.ext
Interface ParamConverterProvider

public interface ParamConverterProvider

Contract for a provider of ParamConverter instances.

Providers implementing ParamConverterProvider contract must be either programmatically registered in a JAX-RS runtime or must be annotated with @Provider annotation to be automatically discovered by the JAX-RS runtime during a provider scanning phase.

Author:

Marek Potociar

Method Summary

<T> ParamConverter<T>

getConverter(Class<T> rawType, Type genericType, Annotation[] annotations) Obtain a ParamConverter that can provide from/to string conversion for an instance of a particular Java type.

Method Detail

getConverter

<T> ParamConverter<T> getConverter(Class<T> rawType,
                                   Type genericType,
                                   Annotation[] annotations)

Obtain a ParamConverter that can provide from/to string conversion for an instance of a particular Java type.

Type Parameters:

T - the supported Java type convertible to/from a String format.

Parameters:

rawType - the raw type of the object to be converted.

genericType - the type of object to be converted. E.g. if an String value representing the injected request parameter is to be converted into a method parameter, this will be the formal type of the method parameter as returned by Class.getGenericParameterTypes.

annotations - an array of the annotations associated with the convertible parameter instance. E.g. if a string value is to be converted into a method parameter, this would be the annotations on that parameter as returned by Method.getParameterAnnotations().

Returns:

the string converter, otherwise null.