@Override
public void addReference(final IReference reference) throws CouldntSaveDataException {
Preconditions.checkNotNull(reference, "IE00221: Reference argument can not be null");
Preconditions.checkArgument(
!references.contains(reference), "IE00222: Reference can not be added twice");
provider.addReference(this, reference.getTarget(), reference.getType());
references.add(reference);
for (final INaviOperandTreeNodeListener listener : listeners) {
try {
listener.addedReference(this, reference);
} catch (final Exception exception) {
CUtilityFunctions.logException(exception);
}
}
}
@Override
public void deleteReference(final IReference reference) throws CouldntDeleteException {
Preconditions.checkNotNull(reference, "IE00223: Reference argument can not be null");
Preconditions.checkArgument(
references.contains(reference), "IE00224: No such reference at this node");
provider.deleteReference(this, reference.getTarget(), reference.getType());
references.remove(reference);
for (final INaviOperandTreeNodeListener listener : listeners) {
try {
listener.removedReference(this, reference);
} catch (final Exception exception) {
CUtilityFunctions.logException(exception);
}
}
}