Question/Issue about Mybatis-cdi @Mapper discovery

[sander78]

Hi there,

We use mybatis-cdi in combination with java8. With the default implementation now possible in interfaces this makes code like this possible.

@Inject
  public ItemRepoResolver(@Any Instance<ItemMapper<?>> itemMappers) {
    this.itemMappers = itemMappers;
  }

So we inject a list of Mappers of type ItemMapper and each mapper can say for which type it can be used. For example:

public interface SavingsAccountMapper extends ItemMapper<SavingsAccount> {

  ..some mapper code...

  @Override
  default Class<SavingsAccount> forType() {
    return SavingsAccount.class;
  }
}

But since we do not use @Inject @Mapper SavingsAccountMapper this mapper is not initialized. We can force this initialization by adding this field but we do not need this.

So my question/issue is. Is is possible to inject a list of Mybatis Mappers without the need to inject them in fields individually?

Thanks,
Sander

[mnesarco]

Hi Sander,

mybatis-cdi only recognize Mappers injected with @mapped at least once. So
if you have a mapper but you do not inject it with @Mapper somewhere...
mybatis-cdi will ignore it.

Cheers,

Frank.

On Fri, Feb 19, 2016 at 5:39 AM, sander78 notifications@github.com wrote:

Hi there,

We use mybatis-cdi in combination with java8. With the default
implementation now possible in interfaces this maken code like this
possible.

@Inject
public ItemRepoResolver(@Any Instance<ItemMapper<?>> itemMappers) {
this.itemMappers = itemMappers;
}

So we inject a list of Mappers of type ItemMapper and each mapper can say
for which type it can be used. For example:

`
public interface SavingsAccountMapper extends ItemMapper {

..some mapper code...
@OverRide https://github.com/Override
default Class forType() {
return SavingsAccount.class;
}
}
`

But since we do not use @Inject https://github.com/Inject @Mapper
https://github.com/Mapper SavingsAccountMapper this mapper is not
initialized. We can force this initialization by adding this field but we
do not need this.

So my question/issue is. Is is possible to inject a list of Mybatis
Mappers without the need to inject them in fields individually?

Thanks,
Sander

—
Reply to this email directly or view it on GitHub
#30.

Frank D. Martínez M.

[sander78]

Okay that's what I figured :)
By the way I just found out it wouldn't work anyway as Mybatis does not accept a default implementation in the interface and will throw an Exception. Too bad.

Thanks