/**
   * Reads the contents of a xml file to restore this object.
   *
   * @param h A helper object for loading.
   */
  public void XreadObject(XMLHelper h) {
    if (h.isTag("CriticalPairs", this)) {
      // System.out.println("LayerExcludePairContainer.XreadObject ...");
      Rule r1 = null;
      Rule r2 = null;
      boolean b = false;
      Vector<
              Pair<
                  Pair<OrdinaryMorphism, OrdinaryMorphism>,
                  Pair<OrdinaryMorphism, OrdinaryMorphism>>>
          allOverlappings = null;
      Vector<String> tagnames = new Vector<String>(1);
      Vector<String> tagnames2 = new Vector<String>(1);

      this.grammar = BaseFactory.theFactory().createGraGra();
      h.getObject("", this.grammar, true);

      tagnames.add("conflictContainer");
      tagnames.add("conflictsContainer");
      tagnames.add("excludeContainer");

      tagnames2.add("dependencyContainer");
      tagnames2.add("dependenciesContainer");

      this.switchDependency = false;

      if (h.readSubTag(tagnames2)) {
        this.conflictKind = CriticalPair.TRIGGER_DEPENDENCY;
        if (h.readAttr("kind").equals("trigger_switch_dependency")) {
          this.switchDependency = true;
          this.conflictKind = CriticalPair.TRIGGER_SWITCH_DEPENDENCY;
        }
      } else if (h.readSubTag(tagnames)) {
        this.conflictKind = CriticalPair.CONFLICT;
      }

      if (this.conflictKind == CriticalPair.TRIGGER_DEPENDENCY
          || this.conflictKind == CriticalPair.TRIGGER_SWITCH_DEPENDENCY
          || this.conflictKind == CriticalPair.CONFLICT) {
        Enumeration<?> r1s = h.getEnumeration("", null, true, "Rule");
        if (!r1s.hasMoreElements()) r1s = h.getEnumeration("", null, true, "Regel");
        while (r1s.hasMoreElements()) {
          h.peekElement(r1s.nextElement());
          /*
           * da ein referenziertes object geholt werden soll. muss nur
           * angegeben werden wie der Membername heisst.
           */
          r1 = (Rule) h.getObject("R1", null, false);
          Enumeration<?> r2s = h.getEnumeration("", null, true, "Rule");
          if (!r2s.hasMoreElements()) r2s = h.getEnumeration("", null, true, "Regel");
          while (r2s.hasMoreElements()) {
            h.peekElement(r2s.nextElement());
            r2 = (Rule) h.getObject("R2", null, false);
            String bool = h.readAttr("bool");
            allOverlappings = null;
            b = false;
            if (bool.equals("true")) {
              b = true;
              allOverlappings =
                  new Vector<
                      Pair<
                          Pair<OrdinaryMorphism, OrdinaryMorphism>,
                          Pair<OrdinaryMorphism, OrdinaryMorphism>>>();
              Enumeration<?> overlappings = h.getEnumeration("", null, true, "Overlapping_Pair");
              while (overlappings.hasMoreElements()) {
                h.peekElement(overlappings.nextElement());
                Graph g = (Graph) h.getObject("", new Graph(), true);

                while (h.readSubTag("Critical")) {
                  GraphObject o = (GraphObject) h.getObject("object", null, false);
                  if (o != null) o.setCritical(true);
                  h.close();
                }
                /*
                 * OrdinaryMorphism first =
                 * BaseFactory.theFactory().createMorphism(r1.getRight(),g);
                 * first.readMorphism(h); OrdinaryMorphism
                 * second =
                 * BaseFactory.theFactory().createMorphism(r2.getLeft(),g);
                 * second.readMorphism(h);
                 * allOverlappings.addElement(new
                 * Pair(first,second));
                 */

                Pair<
                        Pair<OrdinaryMorphism, OrdinaryMorphism>,
                        Pair<OrdinaryMorphism, OrdinaryMorphism>>
                    p = readOverlappingMorphisms(h, r1, r2, g);
                allOverlappings.addElement(p);

                h.close();
              }
            }
            addQuadruple(this.excludeContainer, r1, r2, b, allOverlappings);
            h.close();
          }
          h.close();
        }
        h.close();
        // System.out.println("excludeContainer
        // "+excludeContainer+"\n");
      } /* Ende readSubTag("excludeContainer") */
      if (h.readSubTag("conflictFreeContainer")) {
        Enumeration<?> r1s = h.getEnumeration("", null, true, "Rule");
        if (!r1s.hasMoreElements()) r1s = h.getEnumeration("", null, true, "Regel");
        while (r1s.hasMoreElements()) {
          h.peekElement(r1s.nextElement());
          /*
           * da ein referenziertes object geholt werden soll. muss nur
           * angegeben werden wie der Membername heisst.
           */
          r1 = (Rule) h.getObject("R1", null, false);
          Enumeration<?> r2s = h.getEnumeration("", null, true, "Rule");
          if (!r2s.hasMoreElements()) r2s = h.getEnumeration("", null, true, "Regel");
          while (r2s.hasMoreElements()) {
            h.peekElement(r2s.nextElement());
            r2 = (Rule) h.getObject("R2", null, false);
            String bool = h.readAttr("bool");
            b = false;
            if (bool.equals("true")) b = true;
            addQuadruple(this.conflictFreeContainer, r1, r2, b, null);

            if (!r1.isEnabled()) // test disabled rule
            this.getEntry(r1, r2).state = Entry.DISABLED;
            else if (r1.getLayer() != r2.getLayer()) // test rule
              // layer
              this.getEntry(r1, r2).state = Entry.NOT_RELATED;

            h.close();
          }
          h.close();
        }
        h.close();
        // System.out.println("conflictFreeContainer
        // "+conflictFreeContainer+"\n");
      }
    }
    // isComputed = true;
    h.close();
  }