Annotation Type ApiTransformer

  • @Retention(value=RUNTIME)
    public @interface ApiTransformer
    An annotation for customizing API output by simple type conversion.

    This can be used in two ways. The first is to annotate a class. This specifies that the transformer should be used to convert any objects of this type to the target type. This applies to all APIs in the current App Engine application.

    The second is to use Api.transformers(). This can be used to customize serialization of third-party classes, but is not applied globally and is instead done per-API.

    • Required Element Summary

      Required Elements 
      Modifier and Type Required Element and Description
      java.lang.Class<? extends Transformer<?,?>> value
      The serializer class to do the type conversion.
    • Element Detail

      • value

        public abstract java.lang.Class<? extends Transformer<?,?>> value
        The serializer class to do the type conversion. It must be possible to create this class using Class.newInstance().