nanoarrow_extension_spec: Register Arrow extension types

In nanoarrow: Interface to the 'nanoarrow' 'C' Library

Register Arrow extension types

Description

Register Arrow extension types

Usage

nanoarrow_extension_spec(data = list(), subclass = character())

register_nanoarrow_extension(extension_name, extension_spec)

unregister_nanoarrow_extension(extension_name)

resolve_nanoarrow_extension(extension_name)

Arguments

data	Optional data to include in the extension type specification
subclass	A subclass for the extension type specification. Extension methods will dispatch on this object.
extension_name	An Arrow extension type name (e.g., arrow.r.vctrs)
extension_spec	An extension specification inheriting from 'nanoarrow_extension_spec'.

Value

• nanoarrow_extension_spec() returns an object of class 'nanoarrow_extension_spec'.

• register_nanoarrow_extension() returns extension_spec, invisibly.

• unregister_nanoarrow_extension() returns extension_name, invisibly.

• resolve_nanoarrow_extension() returns an object of class 'nanoarrow_extension_spec' or NULL if the extension type was not registered.

Examples

nanoarrow_extension_spec("mynamespace.mytype", subclass = "mypackage_mytype_spec")

nanoarrow documentation built on Sept. 30, 2023, 1:06 a.m.