Grails : How do you make services available inside services?












0














I am currently running into an issue where I am attempting to use a service within a service however the service is null



class ApplicationService{
def someService

def someMethod(){
someService.method()//null on someService
}
}


Is there additional wiring that I need to perform for this to work? Thanks in advance for your help.










share|improve this question






















  • What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
    – billjamesdev
    Nov 16 at 21:21










  • That doesn't work for me.
    – mcroteau
    Nov 17 at 0:40










  • one of your "services" is not a service at all
    – injecteer
    Nov 20 at 14:30
















0














I am currently running into an issue where I am attempting to use a service within a service however the service is null



class ApplicationService{
def someService

def someMethod(){
someService.method()//null on someService
}
}


Is there additional wiring that I need to perform for this to work? Thanks in advance for your help.










share|improve this question






















  • What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
    – billjamesdev
    Nov 16 at 21:21










  • That doesn't work for me.
    – mcroteau
    Nov 17 at 0:40










  • one of your "services" is not a service at all
    – injecteer
    Nov 20 at 14:30














0












0








0







I am currently running into an issue where I am attempting to use a service within a service however the service is null



class ApplicationService{
def someService

def someMethod(){
someService.method()//null on someService
}
}


Is there additional wiring that I need to perform for this to work? Thanks in advance for your help.










share|improve this question













I am currently running into an issue where I am attempting to use a service within a service however the service is null



class ApplicationService{
def someService

def someMethod(){
someService.method()//null on someService
}
}


Is there additional wiring that I need to perform for this to work? Thanks in advance for your help.







grails






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 16 at 0:27









mcroteau

6701728




6701728












  • What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
    – billjamesdev
    Nov 16 at 21:21










  • That doesn't work for me.
    – mcroteau
    Nov 17 at 0:40










  • one of your "services" is not a service at all
    – injecteer
    Nov 20 at 14:30


















  • What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
    – billjamesdev
    Nov 16 at 21:21










  • That doesn't work for me.
    – mcroteau
    Nov 17 at 0:40










  • one of your "services" is not a service at all
    – injecteer
    Nov 20 at 14:30
















What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
– billjamesdev
Nov 16 at 21:21




What type is someService? Try putting that type instead of def. Also, is this ApplicationService class in the services directory? If not, you won't get automatic dependency injection.
– billjamesdev
Nov 16 at 21:21












That doesn't work for me.
– mcroteau
Nov 17 at 0:40




That doesn't work for me.
– mcroteau
Nov 17 at 0:40












one of your "services" is not a service at all
– injecteer
Nov 20 at 14:30




one of your "services" is not a service at all
– injecteer
Nov 20 at 14:30












2 Answers
2






active

oldest

votes


















0














I was able to do this by using the grailsApplication and loading the service.



if(!someService){
someService = grailsApplication.classLoader.loadClass("org.company.SomeService").newInstance()
}





share|improve this answer

















  • 1




    This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
    – Trebla
    Nov 19 at 15:46



















0














The most possible explanation i here is, the class behind SomeService is not a Grails service artefact thus you cannot just inject it like that.



Double check on the source code whether that class is really a service or just a Groovy class in src/groovy. The framework will treat these two differently.



Also do not attempt to inject service with manually creating the instance like your answer, that is not the correct way to do dependency injection in Grails (or in Spring).






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',
    autoActivateHeartbeat: false,
    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%2f53329734%2fgrails-how-do-you-make-services-available-inside-services%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    I was able to do this by using the grailsApplication and loading the service.



    if(!someService){
    someService = grailsApplication.classLoader.loadClass("org.company.SomeService").newInstance()
    }





    share|improve this answer

















    • 1




      This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
      – Trebla
      Nov 19 at 15:46
















    0














    I was able to do this by using the grailsApplication and loading the service.



    if(!someService){
    someService = grailsApplication.classLoader.loadClass("org.company.SomeService").newInstance()
    }





    share|improve this answer

















    • 1




      This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
      – Trebla
      Nov 19 at 15:46














    0












    0








    0






    I was able to do this by using the grailsApplication and loading the service.



    if(!someService){
    someService = grailsApplication.classLoader.loadClass("org.company.SomeService").newInstance()
    }





    share|improve this answer












    I was able to do this by using the grailsApplication and loading the service.



    if(!someService){
    someService = grailsApplication.classLoader.loadClass("org.company.SomeService").newInstance()
    }






    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Nov 16 at 3:04









    mcroteau

    6701728




    6701728








    • 1




      This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
      – Trebla
      Nov 19 at 15:46














    • 1




      This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
      – Trebla
      Nov 19 at 15:46








    1




    1




    This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
    – Trebla
    Nov 19 at 15:46




    This is not a good way to inject a service. Calling newInstance() will not give you all the autowired parts of the service class you're expecting. Where in your project structure is ApplicationService located? Can you give the path?
    – Trebla
    Nov 19 at 15:46













    0














    The most possible explanation i here is, the class behind SomeService is not a Grails service artefact thus you cannot just inject it like that.



    Double check on the source code whether that class is really a service or just a Groovy class in src/groovy. The framework will treat these two differently.



    Also do not attempt to inject service with manually creating the instance like your answer, that is not the correct way to do dependency injection in Grails (or in Spring).






    share|improve this answer


























      0














      The most possible explanation i here is, the class behind SomeService is not a Grails service artefact thus you cannot just inject it like that.



      Double check on the source code whether that class is really a service or just a Groovy class in src/groovy. The framework will treat these two differently.



      Also do not attempt to inject service with manually creating the instance like your answer, that is not the correct way to do dependency injection in Grails (or in Spring).






      share|improve this answer
























        0












        0








        0






        The most possible explanation i here is, the class behind SomeService is not a Grails service artefact thus you cannot just inject it like that.



        Double check on the source code whether that class is really a service or just a Groovy class in src/groovy. The framework will treat these two differently.



        Also do not attempt to inject service with manually creating the instance like your answer, that is not the correct way to do dependency injection in Grails (or in Spring).






        share|improve this answer












        The most possible explanation i here is, the class behind SomeService is not a Grails service artefact thus you cannot just inject it like that.



        Double check on the source code whether that class is really a service or just a Groovy class in src/groovy. The framework will treat these two differently.



        Also do not attempt to inject service with manually creating the instance like your answer, that is not the correct way to do dependency injection in Grails (or in Spring).







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 28 at 5:40









        Del Fianto

        112




        112






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Stack Overflow!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53329734%2fgrails-how-do-you-make-services-available-inside-services%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

            Biblatex bibliography style without URLs when DOI exists (in Overleaf with Zotero bibliography)

            ComboBox Display Member on multiple fields

            Is it possible to collect Nectar points via Trainline?