Package dagger.assisted

Annotation Type Assisted

@Documented
@Retention(RUNTIME)
@Target(PARAMETER)
public @interface Assisted

Annotates a parameter within an AssistedInject-annotated constructor.

See AssistedInject.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
java.lang.String	value	Returns an identifier for an Assisted parameter.

Element Detail

value

java.lang.String value

Returns an identifier for an Assisted parameter.

Within an AssistedInject constructor, each Assisted parameter must be uniquely defined by the combination of its identifier and type. If no identifier is specified, the default identifier is an empty string. Thus, the following parameters are equivalent within an AssistedInject constructor:

• @Assisted Foo foo
• @Assisted("") Foo foo

Within an AssistedFactory method, each parameter must match an Assisted parameter in the associated AssistedInject constructor (i.e. identifier + type). A parameter with no @Assisted annotation will be assigned the default identifier. Thus, the following parameters are equivalent within an AssistedFactory method:

• Foo foo
• @Assisted Foo foo
• @Assisted("") Foo foo

Example:

 final class DataService {
   @AssistedInject
   DataService(
       BindingFromDagger bindingFromDagger,
       @Assisted String name,
       @Assisted("id") String id,
       @Assisted("repo") String repo) {}
 }

 @AssistedFactory
 interface DataServiceFactory {
   DataService create(
       String name,
       @Assisted("id") String id,
       @Assisted("repo") String repo);
 }
 

Default:

""