Gist for the NamedPRoperty Annotation

NamedProperty.java

@Retention(RUNTIME)
@Target({FIELD, METHOD})
@Qualifier
public @interface NamedProperty {
    /**
     * key or name of the property
     *
     * @return a valid key or ""
     */
    @Nonbinding String key() default "";

    /**
     * Is it a mandatory property. When key is not found in the configuration it
     * throws a {{@link java.lang.IllegalArgumentException}}
     *
     * @return true if mandatory
     */
    @Nonbinding boolean mandatory() default false;

    /**
     * Default value if not provided
     *
     * @return default value or ""
     */
    @Nonbinding String defaultValue() default "";
}