Configuring Annotations to be RUNTIME Retention By Default (without individual @Retention)











up vote
0
down vote

favorite












Is it possible to have a configuration where all Annotations of a given name or type are automatically RetentionPolicy.RUNTIME?



I came across a poblem where I need to use reflection at runtime to search for certain Annotations. But those are common Annotations scattered all over the app, such as @Service or @Transactional, and I can't go one by one and add @RetentionPolicy to each one, it would be too long.






java annotations







share|improve this question


























    up vote
    0
    down vote

    favorite












    Is it possible to have a configuration where all Annotations of a given name or type are automatically RetentionPolicy.RUNTIME?



    I came across a poblem where I need to use reflection at runtime to search for certain Annotations. But those are common Annotations scattered all over the app, such as @Service or @Transactional, and I can't go one by one and add @RetentionPolicy to each one, it would be too long.






    java annotations







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Is it possible to have a configuration where all Annotations of a given name or type are automatically RetentionPolicy.RUNTIME?



      I came across a poblem where I need to use reflection at runtime to search for certain Annotations. But those are common Annotations scattered all over the app, such as @Service or @Transactional, and I can't go one by one and add @RetentionPolicy to each one, it would be too long.






      java annotations







      share|improve this question













      Is it possible to have a configuration where all Annotations of a given name or type are automatically RetentionPolicy.RUNTIME?



      I came across a poblem where I need to use reflection at runtime to search for certain Annotations. But those are common Annotations scattered all over the app, such as @Service or @Transactional, and I can't go one by one and add @RetentionPolicy to each one, it would be too long.






      java annotations




      java annotations






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked yesterday









      gene b.

      1,57652454




      1,57652454
























          1 Answer
          1






          active

          oldest

          votes

















          up vote
          1
          down vote



          accepted










          The Java Language Specification, section 9.6.4.2. @Retention states:




          If T does not have a (meta-)annotation m that corresponds to java.lang.annotation.Retention, then a Java compiler must treat T as if it does have such a meta-annotation m with an element whose value is java.lang.annotation.RetentionPolicy.CLASS.




          As you can see, it is a strict requirement that missing annotation is same as @Retention(RetentionPolicy.CLASS).



          If you need @Retention(RetentionPolicy.RUNTIME), then you must explicitly specify that.






          share|improve this answer





















            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














             

            draft saved


            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53416981%2fconfiguring-annotations-to-be-runtime-retention-by-default-without-individual%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            1
            down vote



            accepted










            The Java Language Specification, section 9.6.4.2. @Retention states:




            If T does not have a (meta-)annotation m that corresponds to java.lang.annotation.Retention, then a Java compiler must treat T as if it does have such a meta-annotation m with an element whose value is java.lang.annotation.RetentionPolicy.CLASS.




            As you can see, it is a strict requirement that missing annotation is same as @Retention(RetentionPolicy.CLASS).



            If you need @Retention(RetentionPolicy.RUNTIME), then you must explicitly specify that.






            share|improve this answer

























              up vote
              1
              down vote



              accepted










              The Java Language Specification, section 9.6.4.2. @Retention states:




              If T does not have a (meta-)annotation m that corresponds to java.lang.annotation.Retention, then a Java compiler must treat T as if it does have such a meta-annotation m with an element whose value is java.lang.annotation.RetentionPolicy.CLASS.




              As you can see, it is a strict requirement that missing annotation is same as @Retention(RetentionPolicy.CLASS).



              If you need @Retention(RetentionPolicy.RUNTIME), then you must explicitly specify that.






              share|improve this answer























                up vote
                1
                down vote



                accepted







                up vote
                1
                down vote



                accepted






                The Java Language Specification, section 9.6.4.2. @Retention states:




                If T does not have a (meta-)annotation m that corresponds to java.lang.annotation.Retention, then a Java compiler must treat T as if it does have such a meta-annotation m with an element whose value is java.lang.annotation.RetentionPolicy.CLASS.




                As you can see, it is a strict requirement that missing annotation is same as @Retention(RetentionPolicy.CLASS).



                If you need @Retention(RetentionPolicy.RUNTIME), then you must explicitly specify that.






                share|improve this answer












                The Java Language Specification, section 9.6.4.2. @Retention states:




                If T does not have a (meta-)annotation m that corresponds to java.lang.annotation.Retention, then a Java compiler must treat T as if it does have such a meta-annotation m with an element whose value is java.lang.annotation.RetentionPolicy.CLASS.




                As you can see, it is a strict requirement that missing annotation is same as @Retention(RetentionPolicy.CLASS).



                If you need @Retention(RetentionPolicy.RUNTIME), then you must explicitly specify that.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered yesterday









                Andreas

                73.3k456118




                73.3k456118






























                     

                    draft saved


                    draft discarded



















































                     


                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53416981%2fconfiguring-annotations-to-be-runtime-retention-by-default-without-individual%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    -

                    Popular posts from this blog

                    Trompette piccolo

                    Image
                    Ne doit pas être confondu avec trompette de poche. Trompette piccolo en si bémol, avec des branches d'embouchure différentes pour le si bémol (la plus courte) ou la (la plus longue) Trompette piccolo La trompette piccolo est la plus petite de la famille des trompettes. Elle joue une octave plus haut que la trompette standard en si bémol. La plupart des trompettes piccolo sont conçues pour jouer dans les deux tonalités de si bémol ou la, en utilisant une branche d'embouchure différente pour chaque tonalité. Le tube de la trompette piccolo en si bémol a une longueur moitié de celle de la trompette normale en si bémol. Des trompettes piccolo en sol, fa, ut sont également fabriquées, mais elles sont rares. La trompette soprano en ré, aussi connu comme la « trompette Bach », a été inventée vers 1890 par le facteur belge Victor-Charles Mahillon pour jouer les parties hautes de la trompette dans la musique de Bach et Haendel. La trompette piccolo moderne permet aux
                    Read more

                    Slow SSRS Report in dynamic grouping and multiple parameters

                    Image
                    0 I have developed a report which has 5 dynamic row groups from where users can choose in parameter selection. The report has 12 parameters so that user can get required information as per their parameter choice. Each parameter has multi value selection option with numerous lists of values (example: Customer parameter has 35,000 values and Item parameter has 2,500 values). Now, the report takes huge time to load parameter values as well as slow in preview (although, server resource is adequate). I am looking for a solution to improve the parameter selection performance without reducing the number of parameter and dynamic grouping sql-server reporting-services ssrs-2012 share | improve this question
                    Read more

                    Simon Yates (cyclisme)

                    Image
                    Pour les articles homonymes, voir Simon Yates et Yates. Simon Yates.mw-parser-output .entete.cyclisme{background-image:url("//upload.wikimedia.org/wikipedia/commons/thumb/8/86/Cycling_%28road%29_pictogram.svg/45px-Cycling_%28road%29_pictogram.svg.png")} Simon Yates lors du Tour d'Alberta 2014 Informations Naissance 7 août 1992 (26 ans) Bury Nationalité Britannique Équipe actuelle Mitchelton-Scott Spécialités Grimpeur, cyclisme sur piste Équipes amateurs 2013 100% Me Équipes professionnelles 01.2014-06.2016 [ n 1 ] Orica-GreenEDGE 07.2016-12.2016 [ n 2 ] Orica-BikeExchange 2017 Orica-Scott 2018- Mitchelton-Scott Principales victoires 1 classement mondial UCI World Tour 2018 1 titre mondial Champion du monde de course aux points (2013) 1 grand tour Tour d'Espagne 2018 2 classements annexes de grands tours Classement du meilleur jeune Tour de France 2017 Classement du combiné Tour d'
                    Read more