String defaultCaster = m_conf.get(CASTER_PROPERTY, STRING_CASTER);
String casterOption = configuredOptions_.getOptionValue("caster", defaultCaster);
if (STRING_CASTER.equalsIgnoreCase(casterOption)) {
caster_ = new Utf8StorageConverter();
} else if (BYTE_CASTER.equalsIgnoreCase(casterOption)) {
caster_ = new HBaseBinaryConverter();
} else {
try {
@SuppressWarnings("unchecked")
Class<LoadCaster> casterClass = (Class<LoadCaster>) Class.forName(casterOption);
caster_ = casterClass.newInstance();