ds.metadata {dsBaseClient} | R Documentation |
This function gets the metadata of a variable stored on the server.
ds.metadata(x = NULL, datasources = NULL)
x |
a character string specifying the name of the object. |
datasources |
a list of |
Server function metadataDS
is called examines the attributes associated with the variable
which are non-disclosive.
ds.metadata
returns to the client-side the metadata of associated to an object
held at the server.
Stuart Wheater, DataSHIELD Development Team
## Not run: # connecting to the Opal servers require('DSI') require('DSOpal') require('dsBaseClient') builder <- DSI::newDSLoginBuilder() builder$append(server = "study1", url = "http://192.168.56.100:8080/", user = "administrator", password = "datashield_test&", table = "CNSIM.CNSIM1", driver = "OpalDriver") builder$append(server = "study2", url = "http://192.168.56.100:8080/", user = "administrator", password = "datashield_test&", table = "CNSIM.CNSIM2", driver = "OpalDriver") builder$append(server = "study3", url = "http://192.168.56.100:8080/", user = "administrator", password = "datashield_test&", table = "CNSIM.CNSIM3", driver = "OpalDriver") logindata <- builder$build() connections <- DSI::datashield.login(logins = logindata, assign = TRUE, symbol = "D") # Example 1: Get the metadata associated with variable 'D' ds.metadata(x = 'D$LAB_TSC', datasources = connections) # clear the Datashield R sessions and logout DSI::datashield.logout(connections) ## End(Not run)