Resource client
Resource client
Details
Helper class for connecting to a resource data store or a computation unit.
Methods
Method new()
Creates a ResourceClient instance.
Arguments
resourceThe resource object to be interprated.
Returns
A ResourceClient object.
Method getResource()
Get the resource object.
Usage
ResourceClient$getResource()
Returns
The resource object.
Get the implementation-specific object that connects to the resource
Usage
ResourceClient$getConnection()
Returns
The connection object.
Method downloadFile()
Stub function to be implemented by subclasses if relevant. Get the resource as a local file.
Usage
ResourceClient$downloadFile(...)
Arguments
...Additional parameters.
Returns
The path to the local file.
Method asDataFrame()
Stub function to be implemented by subclasses if relevant. Coerce the resource as a data.frame.
Usage
ResourceClient$asDataFrame(...)
Arguments
...Additional parameters.
Returns
A data.frame object (can also be a tibble).
Method asTbl()
Stub function to be implemented by subclasses if relevant. Coerce the resource as a dplyr's tbl.
Usage
ResourceClient$asTbl(...)
Arguments
...Additional parameters.
Returns
A dplyr's tbl object.
Method exec()
Stub function to be implemented by subclasses if relevant. Executes a command on a computation resource.
Arguments
...Additional parameters that will represent the command to execute.
Returns
A command execution result object.
Silently closes the connection to the resource
Method clone()
The objects of this class are cloneable with this method.
Usage
ResourceClient$clone(deep = FALSE)
Arguments
deepWhether to make a deep clone.