javax.ws.rs

Annotation Type ConstrainedTo


  • @Target(value=TYPE)
     @Retention(value=RUNTIME)
     @Documented
    public @interface ConstrainedTo
    Indicates the run-time context in which an annotated JAX-RS provider is applicable. If a @ConstrainedTo annotation is not present on a JAX-RS provider type declaration, the declared provider may be used in any run-time context. If such a annotation is present, the JAX-RS runtime will enforce the specified usage restriction.

    The following example illustrates restricting a MessageBodyReader provider implementation to run only as part of a JAX-RS client run-time:

      @ConstrainedTo(RuntimeType.CLIENT)
      public class MyReader implements MessageBodyReader {
          ...
      }
     

    The following example illustrates restricting a WriterInterceptor provider implementation to run only as part of a JAX-RS server run-time:

      @ConstrainedTo(RuntimeType.SERVER)
      public class MyWriterInterceptor implements WriterInterceptor {
          ...
      }
     

    It is a configuration error to constraint a JAX-RS provider implementation to a run-time context in which the provider cannot be applied. In such case a JAX-RS runtime SHOULD inform a user about the issue and ignore the provider implementation in further processing.

    For example, the following restriction of a ClientRequestFilter to run only as part of a JAX-RS server run-time would be considered invalid:

      // reported as invalid and ignored by JAX-RS runtime
      @ConstrainedTo(RuntimeType.SERVER)
      public class MyFilter implements ClientRequestFilter {
          ...
      }
     
    Since:
    2.0
    Author:
    Marek Potociar

Document created the 11/06/2005, last modified the 18/08/2025
Source of the printed document:https://www.gaudry.be/en/java-api-javaee-rf-javax/ws/rs/ConstrainedTo.html

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References

  1. View the html document Language of the document:fr Manuel PHP : https://docs.oracle.com, ConstrainedTo (Java(TM) EE 7 Specification APIs)

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