13.9.2. Bind an Interceptor to a JAX-RS Method

Summary

All registered interceptors are invoked for every request by default. The AcceptedByMethod interface can be implemented to fine tune this behavior.

Example 13.7. Binding Interceptors Example

RESTEasy will call the accept() method for interceptors that implement the AcceptedByMethod interface. If the method returns true, the interceptor will be added to the JAX-RS method's call chain; otherwise it will be ignored for that method.

In the example below, accept() determines if the @GET annotation is present on the JAX-RS method. If it is, the interceptor will be applied to the method's call chain.

@Provider
@ServerInterceptor
public class MyHeaderDecorator implements MessageBodyWriterInterceptor, AcceptedByMethod {

    public boolean accept(Class declaring, Method method) {
       return method.isAnnotationPresent(GET.class);
    }

   public void write(MessageBodyWriterContext context) throws IOException, WebApplicationException
   {
      context.getHeaders().add("My-Header", "custom");
      context.proceed();
   }
}

@Provider
@ServerInterceptor
public class MyHeaderDecorator implements MessageBodyWriterInterceptor, AcceptedByMethod {

    public boolean accept(Class declaring, Method method) {
       return method.isAnnotationPresent(GET.class);
    }

   public void write(MessageBodyWriterContext context) throws IOException, WebApplicationException
   {
      context.getHeaders().add("My-Header", "custom");
      context.proceed();
   }
}

Copy to Clipboard

Toggle word wrap

Report a bug

返回顶部

此内容没有您所选择的语言版本。

13.9.2. Bind an Interceptor to a JAX-RS Method

学习

尝试、购买和销售

社区

关于红帽文档

让开源更具包容性

關於紅帽

Theme

Red Hat legal and privacy links

Red Hat legal and privacy links