javax.ws.rs.ext
Interface WriterInterceptor

public interface WriterInterceptor

Interface for message body writer interceptors that wrap around calls to MessageBodyWriter.writeTo(T, java.lang.Class, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap, java.io.OutputStream).

Providers implementing WriterInterceptor 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. 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:

MessageBodyWriter

Method Summary

void	aroundWriteTo(WriterInterceptorContext context) Interceptor method wrapping calls to MessageBodyWriter.writeTo(T, java.lang.Class, java.lang.reflect.Type, java.lang.annotation.Annotation[], javax.ws.rs.core.MediaType, javax.ws.rs.core.MultivaluedMap, java.io.OutputStream) method.

Method Detail

aroundWriteTo

void aroundWriteTo(WriterInterceptorContext context)
                   throws java.io.IOException,
                          WebApplicationException

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

Parameters:

context - invocation context.

Throws:

java.io.IOException - if an IO error arises or is thrown by the wrapped MessageBodyWriter.writeTo method.

WebApplicationException - thrown by the wrapped MessageBodyWriter.writeTo method.