How to use

FieldsDeserializer

in

cascading.bind.json

@Override
public Fields deserialize( JsonParser jsonParser, DeserializationContext ctxt ) throws IOException, JsonProcessingException
 {
 ObjectMapper mapper = (ObjectMapper) jsonParser.getCodec();
 ObjectNode root = mapper.readTree( jsonParser );
 Fields fields = Fields.NONE;
 if( root.has( "kind" ) )
  return resolveKind( root.get( "kind" ) );
 JsonNode fieldsNodes = root.get( "names" );
 JsonNode typesNodes = root.get( "types" );
 for( int i = 0; i < fieldsNodes.size(); i++ )
  {
  JsonNode nameNode = fieldsNodes.get( i );
  JsonNode typeNode = typesNodes == null ? null : typesNodes.get( i );
  Comparable name = nameNode.isNumber() ? nameNode.asInt() : nameNode.asText();
  Type type = typeNode != null ? resolveType( typeNode ) : null;
  Fields current;
  if( typeNode != null )
   current = new Fields( name, type );
  else
   current = new Fields( name );
  fields = fields.append( current );
  }
 return fields;
 }

private static void addDeserializers( SimpleModule module )
 {
 SimpleDeserializers deserializers = new SimpleDeserializers();
 deserializers.addDeserializer( Fields.class, new FieldsDeserializer() );
 module.setDeserializers( deserializers );
 }