public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
    switch (field) {
    case TYPE:
      if (value == null) {
        unsetType();
      } else {
        setType((java.lang.Byte)value);
      }
      break;

    case VERSION:
      if (value == null) {
        unsetVersion();
      } else {
        setVersion((java.lang.Byte)value);
      }
      break;

    case DATA:
      if (value == null) {
        unsetData();
      } else {
        setData((java.util.List<java.nio.ByteBuffer>)value);
      }
      break;

    }
  }
Returns true if field data is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/FileMetadata.java