Module io.helidon.config
Package io.helidon.config

Annotation Interface Configuration.Value

Enclosing class:
Configuration
@Target(PARAMETER) @Retention(CLASS) @Documented @Qualifier public static @interface Configuration.Value
A qualifier for injection of a single value from the configuration tree.

  • Optional Element Summary

    Optional Elements
    Modifier and Type
    Optional Element
    Description
    String
    value
    Configuration key (from the config root) to find the value.

  • Element Details

    • value

      String value
      Configuration key (from the config root) to find the value.

      Default configuration key is <class_name>.<field_name> for field injection (if supported), and <className>.<constructor_param_name> for constructor injection. The <class_name> is the fully qualified class name of the type that uses this annotation.

      Note that parameter names are not retained at runtime, so the parameter name when not using build time processing would be generated by the JVM.

      To define a default value, use one of the Default annotations.

      Returns:
      configuration key
      Default:
      ""