public abstract class Atom<T extends Token> extends Element implements Topology<T> {
protected abstract Topology<T> top();
+ public abstract String toString();
public Topology toAtom() { return this; }
- /** equality is based on the underlying <tt>Topology</tt> */
- public int hashCode() { return top().hashCode(); }
-
- /** equality is based on the underlying <tt>Topology</tt> */
- public boolean equals(Object o) { return o != null && o instanceof Atom && ((Atom)o).top().equals(top()); }
-
- /** declared abstract to force subclasses to override it in a useful manner */
- public abstract String toString();
-
// Topology Thunks //////////////////////////////////////////////////////////////////////////////
- public Topology<T> unwrap() { return top().unwrap(); }
+ public Topology<T> unwrap() { return top().unwrap(); }
public Topology<T> empty() { return top().empty(); }
public boolean contains(T v) { return top().contains(v); }
public Topology<T> intersect(Topology<T> t) { return top().intersect(t); }
public Topology<T> complement() { return top().complement(); }
public boolean disjoint(Topology<T> t) { return top().disjoint(t); }
public boolean containsAll(Topology<T> t) { return top().containsAll(t); }
+ public int hashCode() { return top().hashCode(); }
+ public boolean equals(Object o) { return o != null && o instanceof Atom && ((Atom)o).top().equals(top()); }
// Subclasses //////////////////////////////////////////////////////////////////////////////
private final Element e;
public Infer(Element e) { this.e = e; }
public Topology<T> top() { return (Topology<T>)e.toAtom(); }
- public String toString() { return e.toString(); }
+ public String toString() { return e.toString(); /* FIXME should be toAtom() */ }
}
public static class Invert<T extends Token> extends Atom<T> {