D1Node-class: A base class for CNode and MNode.

In dataone: R Interface to the 'DataONE' REST API

A base class for CNode and MNode.

Description

D1Node is a base class for CNode and MNode classes and contains class slots and methods that are common between these two child classes.

Slots

identifier

A character string containing a URN that uniquely identifiers the node

name

A character string containing a plain text name for the node

description

A character string describing the node

baseURL

A character string of the registered baseURL for the node, which does not include the version string

subject

A character string containing the Distinguished Name of this node, used for authentication

contactSubject

The Distinguished Name of contact person for this node

replicate

A logical flag indicating whether the node accepts replicas

type

The node type, either 'mn' or 'cn'

state

A character string that indicates whether or not the node is accessible, either 'up' or 'down'

services

A data.frame containing the service tiers supported by this node.

serviceUrls

A data.frame that contains DataONE service Urls

APIversion

A character string indicating version of the DataONE API for this node, e.g. "v2"

env

A character string, either 'prod' if this node is in the production environment, otherwise 'test'

Methods

• D1Node-initialize: Initialize a D1Node

• D1Node(): Create a MNode object representing a DataONE Member Node repository

• archive(): Change the state of an object so that it is hidden from searches

• describeObject(): Get header information for a given pid

• getChecksum(): Get the checksum for the data object associated with the specified pid

• getObject(): Get the bytes associated with an object on a node

• getQueryEngineDescription(): Query a node for the list of query engines available on the node

• getSystemMetadata(): Get the metadata describing system properties associated with an object on the Node

• listObjects(): Retrieve the list of objects that match the search parameters

• listQueryEngines(): Query a node for the list of query engines available on the node

• ping(): Test if a node is online and accepting DataONE requests

• encodeSolr(): Encode the input for Solr Queries

• query(): Search DataONE for data and metadata objects

• isAuthorized(): Check if an action is authorized for the specified identifier

dataone documentation built on Dec. 10, 2025, 5:07 p.m.