private void mapCharsetName() {
this.nativeCharsetName = charsetMap.getName(charsetNumber);
this.charsetName = charsetMap.getMysqlName(charsetNumber);
if (charsetName == null) {
throw new ClusterJDatastoreException(
local.message("ERR_Unknown_Charset_Name",
tableName, columnName, nativeCharsetName));
}
}