How to use

getCOSObject

method

in

org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceEntry

private void updateByValue(String value)
{
  getCOSObject().setName(COSName.V, value);
  // update the appearance state (AS)
  for (PDAnnotationWidget widget : getWidgets())
  {
    if (widget.getAppearance() == null)
    {
      continue;
    }
    PDAppearanceEntry appearanceEntry = widget.getAppearance().getNormalAppearance();
    if (((COSDictionary) appearanceEntry.getCOSObject()).containsKey(value))
    {
      widget.setAppearanceState(value);
    }
    else
    {
      widget.setAppearanceState(COSName.Off.getName());
    }
  }
}

PDAppearanceEntry normalAppearance = ap.getNormalAppearance();
COSDictionary normalAppearanceDict = (COSDictionary) normalAppearance.getCOSObject();
normalAppearanceDict.setItem(COSName.Off, createRadioButtonAppearanceStream(document, widget, false));
normalAppearanceDict.setItem(COSName.YES, createRadioButtonAppearanceStream(document, widget, true));

private Set<String> getAppearanceEntryDependencies(PDAppearanceEntry entry, COSBase entryLink) {
  Set<String> res = new HashSet<>();
  if (entry.isStream()) {
    res.add(getAppearanceStreamDependencies(entry.getAppearanceStream(), entryLink));
  } else {
    for (Map.Entry<COSName, PDAppearanceStream> mapEntry : entry.getSubDictionary().entrySet()) {
      res.add(getAppearanceStreamDependencies(mapEntry.getValue(),
          ((COSDictionary) entry.getCOSObject()).getItem(mapEntry.getKey())));
    }
  }
  return res;
}

private void updateByValue(String value)
{
  getCOSObject().setName(COSName.V, value);
  // update the appearance state (AS)
  for (PDAnnotationWidget widget : getWidgets())
  {
    PDAppearanceEntry appearanceEntry = widget.getAppearance().getNormalAppearance();
    if (((COSDictionary) appearanceEntry.getCOSObject()).containsKey(value))
    {
      widget.getCOSObject().setName(COSName.AS, value);
    }
    else
    {
      widget.getCOSObject().setItem(COSName.AS, COSName.Off);
    }
  }
}

private void updateByValue(String value) throws IOException
{
  getCOSObject().setName(COSName.V, value);
  // update the appearance state (AS)
  for (PDAnnotationWidget widget : getWidgets())
  {
    if (widget.getAppearance() == null)
    {
      continue;
    }
    PDAppearanceEntry appearanceEntry = widget.getAppearance().getNormalAppearance();
    if (((COSDictionary) appearanceEntry.getCOSObject()).containsKey(value))
    {
      widget.setAppearanceState(value);
    }
    else
    {
      widget.setAppearanceState(COSName.Off.getName());
    }
  }
}