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 '18 at 21:21











  • That doesn't work for me.

    – mcroteau
    Nov 17 '18 at 0:40











  • one of your "services" is not a service at all

    – injecteer
    Nov 20 '18 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 '18 at 21:21











  • That doesn't work for me.

    – mcroteau
    Nov 17 '18 at 0:40











  • one of your "services" is not a service at all

    – injecteer
    Nov 20 '18 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 '18 at 0:27









mcroteaumcroteau

6991830




6991830













  • 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 '18 at 21:21











  • That doesn't work for me.

    – mcroteau
    Nov 17 '18 at 0:40











  • one of your "services" is not a service at all

    – injecteer
    Nov 20 '18 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 '18 at 21:21











  • That doesn't work for me.

    – mcroteau
    Nov 17 '18 at 0:40











  • one of your "services" is not a service at all

    – injecteer
    Nov 20 '18 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 '18 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 '18 at 21:21













That doesn't work for me.

– mcroteau
Nov 17 '18 at 0:40





That doesn't work for me.

– mcroteau
Nov 17 '18 at 0:40













one of your "services" is not a service at all

– injecteer
Nov 20 '18 at 14:30





one of your "services" is not a service at all

– injecteer
Nov 20 '18 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 '18 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























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    2 Answers
    2






    active

    oldest

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    2 Answers
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    active

    oldest

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    active

    oldest

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    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 '18 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 '18 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 '18 at 3:04









    mcroteaumcroteau

    6991830




    6991830








    • 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 '18 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 '18 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 '18 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 '18 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 '18 at 5:40









        Del FiantoDel Fianto

        122




        122






























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