public boolean checkChanges(ReadGraph g, IForwardMapping<Domain, Range> map, Domain domainElement, Range rangeElement) throws MappingException {
Domain value = domainAccessor.get(g, domainElement);
Range mappedValue = value == null ? null : map.map(g, value);
- return mappedValue == rangeAccessor.get(rangeElement);
+ return mappedValue != rangeAccessor.get(rangeElement);
}
@Override