+ public boolean isVisible() {
+ return visible;
+ }
+
+ public void setVisible(boolean visible) {
+ this.visible = visible;
+ }
+
+ @Override
+ public String toString() {
+ String s = "PropertyChange";
+ if (pair.first != null)
+ s += " (" + (leftSubject) + " , " + pair.first.getPredicate() + " , " + pair.first.getObject() + ")";
+ if (pair.second != null)
+ s += " (" + (rightSubject) + " , " + pair.second.getPredicate() + " , " + pair.second.getObject() + ")";
+ return s;
+ }