| 1 | package tuffy.infer.ds; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.HashMap; |
| 5 | /** |
| 6 | * A block of ground atoms. Exactly one atom in a block can be true. |
| 7 | */ |
| 8 | public class KeyBlock{ |
| 9 | |
| 10 | public HashMap<Integer, ArrayList<GAtom>> keyConstraints = new HashMap<Integer, ArrayList<GAtom>>(); |
| 11 | |
| 12 | public HashMap<GAtom, Integer> gatom2key = new HashMap<GAtom, Integer>(); |
| 13 | |
| 14 | public void pushGAtom(Integer key, GAtom gatom){ |
| 15 | |
| 16 | if(!keyConstraints.containsKey(key)){ |
| 17 | this.keyConstraints.put(key, new ArrayList<GAtom>()); |
| 18 | } |
| 19 | this.keyConstraints.get(key).add(gatom); |
| 20 | this.gatom2key.put(gatom, key); |
| 21 | } |
| 22 | |
| 23 | public boolean hasKey(GAtom gatom){ |
| 24 | return this.gatom2key.containsKey(gatom); |
| 25 | } |
| 26 | |
| 27 | public ArrayList<GAtom> getBlockMates(GAtom gatom){ |
| 28 | return this.keyConstraints.get(gatom2key.get(gatom)); |
| 29 | } |
| 30 | |
| 31 | } |