public TreeNodeFactory(IndirectObjectFactory objects) {
this.objects = objects;
for (int i = 0; i < objects.size(); i++) {
int ref = objects.getRefByIndex(i);
nodes.add(PdfObjectTreeNode.getInstance(PdfNull.PDFNULL, ref));
}
}
public PdfObjectTreeNode getNode(int ref) {
int idx = objects.getIndexByRef(ref);
PdfObjectTreeNode node = nodes.get(idx);
if (node.getPdfObject().isNull()) {
node = PdfObjectTreeNode.getInstance(objects.loadObjectByReference(ref), ref);
nodes.set(idx, node);
}
return node;
}