/*
  * (non-Javadoc)
  * @see org.eclipse.linuxtools.dataviewers.abstractviewers.ISTDataViewersField#compare(java.lang.Object, java.lang.Object)
  */
 public int compare(Object obj1, Object obj2) {
   TreeElement e1 = (TreeElement) obj1;
   TreeElement e2 = (TreeElement) obj2;
   String s1 = Integer.toString(e1.getInstrumentedLines());
   String s2 = Integer.toString(e2.getInstrumentedLines());
   if (s1 == null) {
     if (s2 == null) return 0;
     return -1;
   }
   if (s2 == null) return 1;
   return s1.compareTo(s2);
 }
 /*
  * (non-Javadoc)
  * @see org.eclipse.linuxtools.dataviewers.charts.provider.IChartField#getNumber(java.lang.Object)
  */
 public Number getNumber(Object obj) {
   TreeElement e = (TreeElement) obj;
   return e.getInstrumentedLines();
 }
 /*
  * (non-Javadoc)
  * @see org.eclipse.linuxtools.dataviewers.abstractviewers.AbstractSTDataViewersField#getToolTipText(java.lang.Object)
  */
 @Override
 public String getToolTipText(Object element) {
   TreeElement e = (TreeElement) element;
   String s = "Instrumented lines number = " + Integer.toString(e.getInstrumentedLines());
   return s;
 }
 /*
  * (non-Javadoc)
  * @see org.eclipse.linuxtools.dataviewers.abstractviewers.ISTDataViewersField#getValue(java.lang.Object)
  */
 public String getValue(Object obj) {
   TreeElement e = (TreeElement) obj;
   return Integer.toString(e.getInstrumentedLines());
 }