/**
* If we store all the objects, we might run out of memory; that's why we'll only store the
* objects that are necessary to construct other objects (for instance the page table).
*
* @param object an object we might want to store
*/
private void store(PdfObject object) {
if (object.isDictionary()) {
PdfDictionary dict = (PdfDictionary) object;
if (PdfName.PAGE.equals(dict.get(PdfName.TYPE))) {
objects.add(dict);
return;
}
}
objects.add(PdfNull.PDFNULL);
}
public static PdfObjectTreeNode getInstance(PdfObject object) {
if (object.isDictionary()) {
if (PdfName.PAGE.equals(((PdfDictionary) object).get(PdfName.TYPE))) {
return new PdfPageTreeNode((PdfDictionary) object);
} else if (PdfName.PAGES.equals(((PdfDictionary) object).get(PdfName.TYPE))) {
return new PdfPagesTreeNode((PdfDictionary) object);
}
}
return new PdfObjectTreeNode(object);
}
