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?






java spring







share|improve this question























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

    – Stultuske
    17 hours ago











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

    – Alexey Usharovski
    17 hours ago






  • 1





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

    – chrylis
    15 hours ago
















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?






java spring







share|improve this question























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

    – Stultuske
    17 hours ago











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

    – Alexey Usharovski
    17 hours ago






  • 1





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

    – chrylis
    15 hours ago














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?






java 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




java spring






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 17 hours ago









Maclean PintoMaclean Pinto

4551929




4551929













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

    – Stultuske
    17 hours ago











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

    – Alexey Usharovski
    17 hours ago






  • 1





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

    – chrylis
    15 hours ago



















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

    – Stultuske
    17 hours ago











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

    – Alexey Usharovski
    17 hours ago






  • 1





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

    – chrylis
    15 hours ago

















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

– Stultuske
17 hours ago





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

– Stultuske
17 hours ago













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

– Alexey Usharovski
17 hours ago





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

– Alexey Usharovski
17 hours ago




1




1





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

– chrylis
15 hours ago





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

– chrylis
15 hours ago












1 Answer
1






active

oldest

votes


















11














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
    12 hours ago











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes









11














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
    12 hours ago
















11














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
    12 hours ago














11












11








11







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 17 hours ago









talextalex

11.9k11749




11.9k11749








  • 1





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

    – OrangeDog
    12 hours ago














  • 1





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

    – OrangeDog
    12 hours ago








1




1





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

– OrangeDog
12 hours ago





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

– OrangeDog
12 hours ago




















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