private ValueScanner<T> findStandardScanner(String scannerClassOrKeyword) throws T2DBException {
StandardValueType type = null;
ValueScanner<T> scanner = null;
try {
type = StandardValueType.valueOf(scannerClassOrKeyword);
} catch (IllegalArgumentException e) {
}
if (type == null) {
keyword = null;
try {
@SuppressWarnings("unchecked")
Class<ValueScanner<T>> scannerClass =
(Class<ValueScanner<T>>) Class.forName(scannerClassOrKeyword);
try {
Constructor<ValueScanner<T>> constructor = scannerClass.getConstructor(ValueType.class);
scanner = constructor.newInstance(this);
} catch (NoSuchMethodException e) {
scanner = scannerClass.newInstance();
}
} catch (Exception e) {
throw T2DBMsg.exception(e, D.D10110, name, scannerClassOrKeyword);
}
} else scanner = findStandardScanner(type);
return scanner;
}
@SuppressWarnings("unchecked")
private ValueScanner<T> findStandardScanner(StandardValueType type) throws T2DBException {
ValueScanner<T> sc = null;
switch (type) {
case BOOLEAN:
sc = scanner = (ValueScanner<T>) new BooleanScanner();
break;
case DATE:
sc = scanner = (ValueScanner<T>) new DateScanner();
break;
case DATETIME:
sc = scanner = (ValueScanner<T>) new DateTimeScanner();
break;
case NAME:
sc = scanner = (ValueScanner<T>) new NameScanner();
break;
case NUMBER:
sc = scanner = (ValueScanner<T>) new NumberScanner();
break;
case TEXT:
sc = scanner = (ValueScanner<T>) new TextScanner();
break;
case TIMEDOMAIN:
sc = scanner = (ValueScanner<T>) new TimeDomainScanner();
break;
case TYPE:
sc = scanner = (ValueScanner<T>) new TypeScanner(getSurrogate().getDatabase());
break;
default:
throw new RuntimeException(type.name());
}
keyword = type;
return sc;
}
@Override
public String getExternalRepresentation() {
if (keyword == null) return scanner.getClass().getName();
else return keyword.name();
}