Package org.apache.juneau.annotation

Annotation Interface Named

@Documented
@Target(PARAMETER)
@Retention(RUNTIME)
@Inherited
public @interface Named

Identifies a bean injection qualifier for constructor/method parameters.

This annotation is used to specify which named bean should be injected into a constructor or method parameter. It serves the same purpose as the standard javax.inject.Named annotation but without requiring a dependency on the javax.inject module.

Example:

public MyClass(@Named("myBean") MyBean bean) { // Constructor will receive the bean named "myBean" from the BeanStore }

Comparison with @Name:

Do not confuse this annotation with @Name, which serves a different purpose:

• @Named - Specifies which named bean to inject (bean qualifier)
• @Name - Specifies the parameter name for bean property mapping when bytecode parameter names are not available

Example showing the difference:

// @Named - for bean injection public MyService(@Named("primaryDb") Database db) { // Injects the bean named "primaryDb" from BeanStore } // @Name - for parameter naming (when bytecode names unavailable) public Person(@Name("firstName") String arg0, @Name("lastName") String arg1) { // Maps constructor parameters to bean properties "firstName" and "lastName" // Useful when class is not compiled with -parameters flag }

See Also:

• Name
• BeanStore

Required Element Summary

Required Elements

Modifier and Type	Required Element	Description
String	value	The bean name to use for injection.

Element Details

value

String value

The bean name to use for injection.

Returns:

The bean name.