|| pageRecordable instanceof NonTerminalPage;
}
public void freePage(final IPageRecord pageRecord) throws HeapException {
final long freePageNumber = header.getPageNumberOfFirstFreePage();
final FreePage freePage = new FreePage(freePageNumber);
pageRecord.setPageRecordable(freePage);
// freePage.setValueIsChangedValueToSave();
final long newFreePageNumber = pageRecord.getPageNumber();
header.setPageNumberOfFirstFreePage(newFreePageNumber);
header.incrementNumberOfFreeRecord();