graph Command Group¤
List, import, export, delete, count, tree or open graphs.
Graphs are identified by an IRI.
Note
The get a list of existing graphs, execute the graph list command or use tab-completion.
graph count¤
Count triples in graph(s).
This command lists graphs with their triple count. Counts do not include imported graphs.
Options
graph tree¤
Show graph tree(s) of the owl:imports hierarchy.
You can output one or more trees of the import hierarchy.
Imported graphs which do not exist are shown as [missing: IRI]. Imported graphs which will result in an import cycle are shown as [ignored: IRI]. Each graph is shown with label and IRI.
Options
-a, --all Show tree of all (readable) graphs.
--raw Outputs raw JSON of the graph importTree API response.
--id-only Lists only graph identifier (IRIs) and no labels or other
metadata. This is useful for piping the IRIs into other
commands. The output with this option is a sorted, flat, de-
duplicated list of existing graphs.
graph list¤
List accessible graphs.
Options
--raw Outputs raw JSON of the graphs list API response.
--id-only Lists only graph identifier (IRIs) and no labels
or other metadata. This is useful for piping the
IRIs into other commands.
--filter <CHOICE TEXT>... Filter graphs based on effective access
conditions or import closure. First parameter
CHOICE can be 'access' or 'imported-by'. The
second parameter can be 'readonly' or 'writeable'
in case of 'access' or any readable graph in case
of 'imported-by'.
graph export¤
Export graph(s) as NTriples to stdout (-), file or directory.
In case of file export, data from all selected graphs will be concatenated in one file. In case of directory export, .graph and .ttl files will be created for each graph.
Options
-a, --all Export all readable graphs.
--include-imports Export selected graph(s) and all graphs
which are imported from these selected
graph(s).
--create-catalog In addition to the .ttl and .graph files,
cmemc will create an XML catalog file
(catalog-v001.xml) which can be used by
applications such as Protégé.
--output-dir DIRECTORY Export to this directory.
--output-file FILE Export to this file. [default: -]
-t, --filename-template TEXT Template for the export file name(s). Used
together with --output-dir. Possible
placeholders are (Jinja2): {{hash}} - sha256
hash of the graph IRI, {{iriname}} - graph
IRI converted to filename, {{connection}} -
from the --connection option and {{date}} -
the current date as YYYY-MM-DD. The file
suffix will be appended. Needed directories
will be created. [default: {{hash}}]
--mime-type [application/n-triples|text/turtle|application/rdf+xml]
Define the requested mime type [default:
text/turtle]
--compress [gzip] Compress the exported graph files.
graph delete¤
Delete graph(s) from the store.
Options
graph import¤
Import graph(s) to the store.
If input is a file, content will be uploaded to the graph identified with the IRI.
If input is a directory and NO IRI is given, it scans for file-pairs such as xyz.ttl and xyz.ttl.graph, where xyz.ttl is the actual triples file and xyz.ttl.graph contains the graph IRI in the first line: https://mygraph.de/xyz/.
If input is a directory AND a graph IRI is given, it scans for all *.ttl files in the directory and imports all content to the graph, ignoring the *.ttl.graph files.
If the --replace flag is set, the data in the graphs will be overwritten, if not, it will be added.
Note
Directories are scanned on the first level only (not recursively).
Options
--replace Replace / overwrite the graph(s), instead of just adding
the triples to the graph.
--skip-existing Skip importing a file if the target graph already exists in
the store. Note that the graph list is fetched once at the
beginning of the process, so that you can still add
multiple files to one single graph (if it does not exist).
graph open¤
Open / explore a graph in the browser.