# Package com.holonplatform.vaadin.flow.navigator.annotations

- Annotation Types Summary
  Annotation Type | Description
  --- | ---
  OnShow | Annotation which can be used on class methods when the class is a navigation (routing) target: the `OnShow` annotated methods will be invoked just after the navigation towards this class, i.e. just after the class component is shown (attached) in the UI.
  QueryParameter | Annotation which can be used on a navigation target class field to inject the URL query parameter value which corresponds to the parameter name declared using the annotation `QueryParameter.value()`.

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