public void setUpdate(boolean update) {
    this.update = update;
    setUpdateIsSet(true);
  }
Returns true if field mapping 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/WMCreateOrUpdateMappingRequest.java