Autowire a default implementation if implemenation bean is not found












8















I have an interface with 2 default methods. If the implementation is not found, I wish autowire a proxy bean with these 2 default methods. Is this possible in spring?










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  • autowire two of them. if (nonDefault == null) useDefault

    – Stultuske
    Mar 26 at 9:46











  • Interesting. Not sure that such behaviour is possible with Spring.

    – Alexey Usharovski
    Mar 26 at 9:48






  • 1





    This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

    – chrylis
    Mar 26 at 11:40
















8















I have an interface with 2 default methods. If the implementation is not found, I wish autowire a proxy bean with these 2 default methods. Is this possible in spring?










share|improve this question























  • autowire two of them. if (nonDefault == null) useDefault

    – Stultuske
    Mar 26 at 9:46











  • Interesting. Not sure that such behaviour is possible with Spring.

    – Alexey Usharovski
    Mar 26 at 9:48






  • 1





    This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

    – chrylis
    Mar 26 at 11:40














8












8








8








I have an interface with 2 default methods. If the implementation is not found, I wish autowire a proxy bean with these 2 default methods. Is this possible in spring?










share|improve this question














I have an interface with 2 default methods. If the implementation is not found, I wish autowire a proxy bean with these 2 default methods. Is this possible in spring?







java spring






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asked Mar 26 at 9:42









Maclean PintoMaclean Pinto

4551929




4551929













  • autowire two of them. if (nonDefault == null) useDefault

    – Stultuske
    Mar 26 at 9:46











  • Interesting. Not sure that such behaviour is possible with Spring.

    – Alexey Usharovski
    Mar 26 at 9:48






  • 1





    This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

    – chrylis
    Mar 26 at 11:40



















  • autowire two of them. if (nonDefault == null) useDefault

    – Stultuske
    Mar 26 at 9:46











  • Interesting. Not sure that such behaviour is possible with Spring.

    – Alexey Usharovski
    Mar 26 at 9:48






  • 1





    This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

    – chrylis
    Mar 26 at 11:40

















autowire two of them. if (nonDefault == null) useDefault

– Stultuske
Mar 26 at 9:46





autowire two of them. if (nonDefault == null) useDefault

– Stultuske
Mar 26 at 9:46













Interesting. Not sure that such behaviour is possible with Spring.

– Alexey Usharovski
Mar 26 at 9:48





Interesting. Not sure that such behaviour is possible with Spring.

– Alexey Usharovski
Mar 26 at 9:48




1




1





This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

– chrylis
Mar 26 at 11:40





This is the general idea behind auto-configuration and the conditional registration described in talex's answer.

– chrylis
Mar 26 at 11:40












1 Answer
1






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12














You need to define bean in some configuration



@Bean
@ConditionalOnMissingBean
public Foo foo(){
return new Foo() {};
}


where Foo is your interface.






share|improve this answer



















  • 1





    This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

    – OrangeDog
    Mar 26 at 14:15












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1 Answer
1






active

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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes









12














You need to define bean in some configuration



@Bean
@ConditionalOnMissingBean
public Foo foo(){
return new Foo() {};
}


where Foo is your interface.






share|improve this answer



















  • 1





    This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

    – OrangeDog
    Mar 26 at 14:15
















12














You need to define bean in some configuration



@Bean
@ConditionalOnMissingBean
public Foo foo(){
return new Foo() {};
}


where Foo is your interface.






share|improve this answer



















  • 1





    This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

    – OrangeDog
    Mar 26 at 14:15














12












12








12







You need to define bean in some configuration



@Bean
@ConditionalOnMissingBean
public Foo foo(){
return new Foo() {};
}


where Foo is your interface.






share|improve this answer













You need to define bean in some configuration



@Bean
@ConditionalOnMissingBean
public Foo foo(){
return new Foo() {};
}


where Foo is your interface.







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 26 at 9:53









talextalex

11.9k11749




11.9k11749








  • 1





    This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

    – OrangeDog
    Mar 26 at 14:15














  • 1





    This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

    – OrangeDog
    Mar 26 at 14:15








1




1





This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

– OrangeDog
Mar 26 at 14:15





This requires Spring Boot (specifically spring-boot-autoconfigure), not just Spring Core.

– OrangeDog
Mar 26 at 14:15




















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