Return an object containing the value of the field at the specified index. This is a String, Integer, Double, Boolean, Timestamp, Byte[] or Tuple depending on the field type.

Return an object containing the value of the Field with the specified name. This is a String, Integer, Double, Boolean, Timestamp, Byte[] or Tuple depending on the field type.

Return an object containing the value of the given field. This is a String, Integer, Double, Boolean, Timestamp, Byte[] or Tuple depending on the field type.

The Schema.Field objects used to set and get Tuple field values must be obtained via the Tuple's Schema object. A Schema.Field object that has been created by the user or retrieved from a different Schema may not work.