46  * methods with names beginning with {@code "visit"}.
  47  *
  48  * <p>When such a new visit method is added, the default
  49  * implementation in this class will be to call the {@link
  50  * #visitUnknown visitUnknown} method.  A new abstract element visitor
  51  * class will also be introduced to correspond to the new language
  52  * level; this visitor will have different default behavior for the
  53  * visit method in question.  When the new visitor is introduced, all
  54  * or portions of this visitor may be deprecated.
  55  *
  56  * @param <R> the return type of this visitor's methods.  Use {@link
  57  *            Void} for visitors that do not need to return results.
  58  * @param <P> the type of the additional parameter to this visitor's
  59  *            methods.  Use {@code Void} for visitors that do not need an
  60  *            additional parameter.
  61  *
  62  * @see AbstractElementVisitor6
  63  * @see AbstractElementVisitor7
  64  * @see AbstractElementVisitor8
  65  * @since 9

  66  */
  67 @SupportedSourceVersion(RELEASE_9)
  68 public abstract class AbstractElementVisitor9<R, P> extends AbstractElementVisitor8<R, P> {
  69     /**
  70      * Constructor for concrete subclasses to call.
  71      */
  72     protected AbstractElementVisitor9(){
  73         super();
  74     }
  75 
  76     /**
  77      * Visits a {@code ModuleElement} in a manner defined by a
  78      * subclass.
  79      *
  80      * @param t  {@inheritDoc}
  81      * @param p  {@inheritDoc}
  82      * @return the result of the visit as defined by a subclass
  83      */
  84     @Override
  85     public abstract R visitModule(ModuleElement t, P p);

  46  * methods with names beginning with {@code "visit"}.
  47  *
  48  * <p>When such a new visit method is added, the default
  49  * implementation in this class will be to call the {@link
  50  * #visitUnknown visitUnknown} method.  A new abstract element visitor
  51  * class will also be introduced to correspond to the new language
  52  * level; this visitor will have different default behavior for the
  53  * visit method in question.  When the new visitor is introduced, all
  54  * or portions of this visitor may be deprecated.
  55  *
  56  * @param <R> the return type of this visitor's methods.  Use {@link
  57  *            Void} for visitors that do not need to return results.
  58  * @param <P> the type of the additional parameter to this visitor's
  59  *            methods.  Use {@code Void} for visitors that do not need an
  60  *            additional parameter.
  61  *
  62  * @see AbstractElementVisitor6
  63  * @see AbstractElementVisitor7
  64  * @see AbstractElementVisitor8
  65  * @since 9
  66  * @spec JPMS
  67  */
  68 @SupportedSourceVersion(RELEASE_9)
  69 public abstract class AbstractElementVisitor9<R, P> extends AbstractElementVisitor8<R, P> {
  70     /**
  71      * Constructor for concrete subclasses to call.
  72      */
  73     protected AbstractElementVisitor9(){
  74         super();
  75     }
  76 
  77     /**
  78      * Visits a {@code ModuleElement} in a manner defined by a
  79      * subclass.
  80      *
  81      * @param t  {@inheritDoc}
  82      * @param p  {@inheritDoc}
  83      * @return the result of the visit as defined by a subclass
  84      */
  85     @Override
  86     public abstract R visitModule(ModuleElement t, P p);