dom w3c dom Node w3c dom ProcessingInstruction processinginstructionimpl characterdataimpl processinginstruction serialversionuid l target processinginstructionimpl coredocumentimpl ownerdoc target data ownerdoc data this.target target getnodetype node.processing_instruction_node getnodename needssyncdata synchronizedata target gettarget needssyncdata synchronizedata target getdata needssyncdata synchronizedata data setdata data setnodevalue data getbaseuri needssyncdata synchronizedata ownernode.getbaseuri