final Type textType1 = parameters.getType(0);
final Object textValue1 = parameters.getValue(0);
final Type textType2 = parameters.getType(1);
final Object textValue2 = parameters.getValue(1);
final String text = typeRegistry.convertToText(textType1, textValue1);
final String substring = typeRegistry.convertToText(textType2, textValue2);
return text.startsWith(substring) ? RETURN_TRUE : RETURN_FALSE;
}