/**
* Returns the set of neighbors shared by this and the given Neighbors. Also known as an
* <b>intersection</b>.
*/
public Neighbors shared(Neighbors neighbors) {
return Neighbors.values()[ordinal() & neighbors.ordinal()];
}
/**
* Returns a set of neighbors that contains all those held by this set, less those held by the
* given set.
*/
public Neighbors remove(Neighbors neighbors) {
return Neighbors.values()[ordinal() & ~neighbors.ordinal()];
}
/**
* Returns the set of neighbors held by either this or the given Neighbors. Also known as a
* <b>union</b>.
*/
public Neighbors add(Neighbors neighbors) {
return Neighbors.values()[ordinal() | neighbors.ordinal()];
}