private boolean hasChild(AdvancedCache<?, ?> cache, Fqn f) {
if (f.size() > 1) {
// indirect child.
Fqn absoluteFqn = Fqn.fromRelativeFqn(fqn, f);
return exists(cache, absoluteFqn);
} else {
return hasChild(f.getLastElement());
}
}
@Override
public boolean hasChild(Fqn f) {
if (f.size() > 1) {
// indirect child.
Fqn absoluteFqn = Fqn.fromRelativeFqn(fqn, f);
return exists(absoluteFqn);
} else {
return hasChild(f.getLastElement());
}
}
/**
* Creates a new Fqn whose ancestor has been replaced with the new ancestor passed in.
*
* @param oldAncestor old ancestor to replace
* @param newAncestor nw ancestor to replace with
* @return a new Fqn with ancestors replaced.
*/
public Fqn replaceAncestor(Fqn oldAncestor, Fqn newAncestor) {
if (!isChildOf(oldAncestor))
throw new IllegalArgumentException("Old ancestor must be an ancestor of the current Fqn!");
Fqn subFqn = this.getSubFqn(oldAncestor.size(), size());
return Fqn.fromRelativeFqn(newAncestor, subFqn);
}