public void setFieldValue(_Fields field, Object value) {
    switch (field) {
    case NAME:
      if (value == null) {
        unsetName();
      } else {
        setName((String)value);
      }
      break;

    case CONFIGURATION:
      if (value == null) {
        unsetConfiguration();
      } else {
        setConfiguration((Map<String,String>)value);
      }
      break;

    }
  }
Returns true if field configuration is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/NamespaceDescriptor.java