Examples of example.avro.User

    DatumWriter<User> userDatumWriter = new SpecificDatumWriter<User>(User.class);
    DataFileWriter<User> dataFileWriter = new DataFileWriter<User>(userDatumWriter);
    dataFileWriter.create(User.SCHEMA$, file);


    // Create random users
    User user;
    Random random = new Random();
    for (int i = 0; i < USERS; i++) {
      user = new User("user", null, COLORS[random.nextInt(COLORS.length)]);
      dataFileWriter.append(user);
      System.out.println(user);
    }


    dataFileWriter.close();


import example.avro.User;


public class SpecificMain {
  public static void main(String[] args) throws IOException {
    User user1 = new User();
    user1.setName("Alyssa");
    user1.setFavoriteNumber(256);
    // Leave favorite color null


    // Alternate constructor
    User user2 = new User("Ben", 7, "red");
    
    // Construct via builder
    User user3 = User.newBuilder()
             .setName("Charlie")
             .setFavoriteColor("blue")
             .setFavoriteNumber(null)
             .build();


    // Serialize user1 and user2 to disk
    File file = new File("users.avro");
    DatumWriter<User> userDatumWriter = new SpecificDatumWriter<User>(User.class);
    DataFileWriter<User> dataFileWriter = new DataFileWriter<User>(userDatumWriter);
    dataFileWriter.create(user1.getSchema(), file);
    dataFileWriter.append(user1);
    dataFileWriter.append(user2);
    dataFileWriter.append(user3);
    dataFileWriter.close();


    // Deserialize Users from disk
    DatumReader<User> userDatumReader = new SpecificDatumReader<User>(User.class);
    DataFileReader<User> dataFileReader = new DataFileReader<User>(file, userDatumReader);
    User user = null;
    while (dataFileReader.hasNext()) {
      // Reuse user object by passing it to next(). This saves us from
      // allocating and garbage collecting many objects for files with
      // many items.
      user = dataFileReader.next(user);

Examples of example.avro.User

Related Classes of example.avro.User