Module info.picocli
Package picocli

Interface CommandLine.Model.IExtensible

  • Enclosing class:
    CommandLine.Model
    public static interface CommandLine.Model.IExtensible
    Interface to allow extending the capabilities of other interface without Java 8 default methods.

    Example usage:

     // suppose we want to add a method `getInitialValueState` to `IAnnotatedElement`
 IAnnotatedElement element = getAnnotatedElement();
 if (element instanceof IExtensible) {
     InitialValueState state = ((IExtensible) element).getExtension(InitialValueState.class);
     if (state != null) {
         // ...
     }
 }
    Since:
    4.3

    • Method Detail

      • getExtension

        <T> T getExtension​(Class<T> cls)
        Returns an instance of the specified class, or null if this extension is not supported.
        Parameters:
        cls - class of the desired extension