How to use

ILineTrackerExtension

in

org.eclipse.jface.text

@Override
public DocumentRewriteSession startRewriteSession(DocumentRewriteSessionType sessionType) {
  if (getActiveRewriteSession() != null)
    throw new IllegalStateException();
  fDocumentRewriteSession= new DocumentRewriteSession(sessionType);
  if (DEBUG)
    System.out.println("AbstractDocument: Starting rewrite session: " + fDocumentRewriteSession); //$NON-NLS-1$
  fireRewriteSessionChanged(new DocumentRewriteSessionEvent(this, fDocumentRewriteSession, DocumentRewriteSessionEvent.SESSION_START));
  startRewriteSessionOnPartitioners(fDocumentRewriteSession);
  ILineTracker tracker= getTracker();
  if (tracker instanceof ILineTrackerExtension) {
    ILineTrackerExtension extension= (ILineTrackerExtension) tracker;
    extension.startRewriteSession(fDocumentRewriteSession);
  }
  if (DocumentRewriteSessionType.SEQUENTIAL == sessionType)
    startSequentialRewrite(false);
  else if (DocumentRewriteSessionType.STRICTLY_SEQUENTIAL == sessionType)
    startSequentialRewrite(true);
  return fDocumentRewriteSession;
}

@Override
public void stopRewriteSession(DocumentRewriteSession session) {
  if (fDocumentRewriteSession != null && fDocumentRewriteSession == session) {
    if (DEBUG)
      System.out.println("AbstractDocument: Stopping rewrite session: " + session); //$NON-NLS-1$
    DocumentRewriteSessionType sessionType= session.getSessionType();
    if (DocumentRewriteSessionType.SEQUENTIAL == sessionType || DocumentRewriteSessionType.STRICTLY_SEQUENTIAL == sessionType)
      stopSequentialRewrite();
    ILineTracker tracker= getTracker();
    if (tracker instanceof ILineTrackerExtension) {
      ILineTrackerExtension extension= (ILineTrackerExtension) tracker;
      extension.stopRewriteSession(session, get());
    }
    stopRewriteSessionOnPartitioners(fDocumentRewriteSession);
    fDocumentRewriteSession= null;
    fireRewriteSessionChanged(new DocumentRewriteSessionEvent(this, session, DocumentRewriteSessionEvent.SESSION_STOP));
  }
}

@Override
public void stopRewriteSession(DocumentRewriteSession session) {
  if (fDocumentRewriteSession == session) {
    if (DEBUG)
      System.out.println("AbstractDocument: Stopping rewrite session: " + session); //$NON-NLS-1$
    DocumentRewriteSessionType sessionType= session.getSessionType();
    if (DocumentRewriteSessionType.SEQUENTIAL == sessionType || DocumentRewriteSessionType.STRICTLY_SEQUENTIAL == sessionType)
      stopSequentialRewrite();
    ILineTracker tracker= getTracker();
    if (tracker instanceof ILineTrackerExtension) {
      ILineTrackerExtension extension= (ILineTrackerExtension) tracker;
      extension.stopRewriteSession(session, get());
    }
    stopRewriteSessionOnPartitioners(fDocumentRewriteSession);
    fDocumentRewriteSession= null;
    fireRewriteSessionChanged(new DocumentRewriteSessionEvent(this, session, DocumentRewriteSessionEvent.SESSION_STOP));
  }
}

@Override
public DocumentRewriteSession startRewriteSession(DocumentRewriteSessionType sessionType) {
  if (getActiveRewriteSession() != null)
    throw new IllegalStateException();
  fDocumentRewriteSession= new DocumentRewriteSession(sessionType);
  if (DEBUG)
    System.out.println("AbstractDocument: Starting rewrite session: " + fDocumentRewriteSession); //$NON-NLS-1$
  fireRewriteSessionChanged(new DocumentRewriteSessionEvent(this, fDocumentRewriteSession, DocumentRewriteSessionEvent.SESSION_START));
  startRewriteSessionOnPartitioners(fDocumentRewriteSession);
  ILineTracker tracker= getTracker();
  if (tracker instanceof ILineTrackerExtension) {
    ILineTrackerExtension extension= (ILineTrackerExtension) tracker;
    extension.startRewriteSession(fDocumentRewriteSession);
  }
  if (DocumentRewriteSessionType.SEQUENTIAL == sessionType)
    startSequentialRewrite(false);
  else if (DocumentRewriteSessionType.STRICTLY_SEQUENTIAL == sessionType)
    startSequentialRewrite(true);
  return fDocumentRewriteSession;
}