javax.ws.rs.ext

Interface ReaderInterceptor

public interface ReaderInterceptor

Interface for message body reader interceptors that wrap around calls to MessageBodyReader.readFrom(java.lang.Class<T>, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap<java.lang.String, java.lang.String>, java.io.InputStream).

Providers implementing ReaderInterceptor contract must be either programmatically registered in an API runtime or must be annotated with @Provider annotation to be automatically discovered by the runtime during a provider scanning phase. Message body interceptor instances may also be discovered and bound dynamically to particular resource methods.

Since:

2.0

Author:

Santiago Pericas-Geertsen, Bill Burke, Marek Potociar

See Also:

MessageBodyReader

Method Summary

Modifier and Type	Method and Description
Object	aroundReadFrom(ReaderInterceptorContext context) Interceptor method wrapping calls to MessageBodyReader.readFrom(java.lang.Class<T>, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap<java.lang.String, java.lang.String>, java.io.InputStream) method.

Method Detail

aroundReadFrom

Object aroundReadFrom(ReaderInterceptorContext context)
               throws IOException,
                      WebApplicationException

Interceptor method wrapping calls to MessageBodyReader.readFrom(java.lang.Class<T>, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap<java.lang.String, java.lang.String>, java.io.InputStream) method. The parameters of the wrapped method called are available from context. Implementations of this method SHOULD explicitly call ReaderInterceptorContext.proceed() to invoke the next interceptor in the chain, and ultimately the wrapped MessageBodyReader.readFrom(java.lang.Class<T>, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap<java.lang.String, java.lang.String>, java.io.InputStream) method.

Parameters:

context - invocation context.

Returns:

result of next interceptor invoked or the wrapped method if last interceptor in chain.

Throws:

IOException - if an IO error arises or is thrown by the wrapped MessageBodyReader.readFrom method.

WebApplicationException - thrown by the wrapped MessageBodyReader.readFrom method.