Type Parameters:

Original - The type that JSONB doesn't know how to handle

Adapted - The type that JSONB knows how to handle out of the box

Adapter runtime "Original" and "Adapted" generic types are inferred from subclassing information, which is mandatory for adapter to work.

Sample 1:

 
      // Generic information is provided by subclassing.
      class BoxToCrateAdapter implements JsonbAdapter<Box<Integer>, Crate<String>> {...};
      jsonbConfig.withAdapters(new BoxToCrateAdapter());

      // Generic information is provided by subclassing with anonymous class
      jsonbConfig.withAdapters(new JsonbAdapter<Box<Integer>, Crate<String>> {...});
 
 

Sample 2:

 
      BoxToCrateAdapter<T> implements JsonbAdapter<Box<T>, Integer> {...};

      // Bad way: Generic type information is lost due to type erasure
      jsonbConfig.withAdapters(new BoxToCrateAdapter<Integer>());

      // Proper way: Anonymous class holds generic type information
      jsonbConfig.withAdapters(new BoxToCrateAdapter<Integer>(){});
 
 

public interface JsonbAdapter<Original,Adapted>

Since:

JSON Binding 1.0

See Also:

JsonbConfig, JsonbTypeAdapter