Annotation Type Primary

public @interface Primary

Indicates that a bean should be given preference when multiple candidates are qualified to autowire a single-valued dependency. If exactly one 'primary' bean exists among the candidates, it will be the autowired value.

May be used on any class directly or indirectly annotated with Component or on methods annotated with Bean.

Using Primary at the class level has no effect unless component-scanning is being used. If a Primary-annotated class is declared via XML, Primary annotation metadata is ignored, and <bean primary="true|false"/> is respected instead.

Chris Beams
See Also:
Lazy, Bean, Component