Method Detail

• convert

  R convert​(T obj)

  Convert obj to other object. There is no need to implement cache mechanism. It is provided by Lookup.Item.getInstance() method itself. However the method can be called more than once because instance is held just by weak reference.

  Parameters:

  obj - the registered object

  Returns:

  the object converted from this object

• type

  java.lang.Class<? extends R> type​(T obj)

  Return type of converted object. Accessible via Lookup.Item.getType()

  Parameters:

  obj - the registered object

  Returns:

  the class that will be produced from this object (class or superclass of convert (obj))

• id

  java.lang.String id​(T obj)

  Computes the ID of the resulted object. Accessible via Lookup.Item.getId().

  Parameters:

  obj - the registered object

  Returns:

  the ID for the object

• displayName

  java.lang.String displayName​(T obj)

  The human presentable name for the object. Accessible via Lookup.Item.getDisplayName().

  Parameters:

  obj - the registered object

  Returns:

  the name representing the object for the user