setRefCount(0);
setReferenceCount(0);
		public void delete() throws IOException {			// reset page header fields			ph.setDataLength(0);			ph.setNextInChain(-1L);			ph.setLastInChain(-1L);			ph.setTID((short) - 1);			ph.setRecordCount((short) 0);			setRefCount(0);			ph.setDirty(true);			unlinkPages(page);		}