ReaderInterceptor (Jakarta EE Platform API)

```
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[], jakarta.ws.rs.core.MediaType, jakarta.ws.rs.core.MultivaluedMap<java.lang.String, java.lang.String>, java.io.InputStream).
Providers implementing ReaderInterceptor 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:

MessageBodyReader

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`aroundReadFrom(ReaderInterceptorContext context)`	Interceptor method wrapping calls to `MessageBodyReader.readFrom(java.lang.Class<T>, java.lang.reflect.Type, java.lang.annotation.Annotation[], jakarta.ws.rs.core.MediaType, jakarta.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[], jakarta.ws.rs.core.MediaType, jakarta.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[], jakarta.ws.rs.core.MediaType, jakarta.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.