stardog-admin function add
Description
Adds a new stored function
Usage
stardog-admin [ --krb5 ] [ --krb5-disable-rdns ] [ --server <server url> ] function add [ --overwrite ] [ {-p | --passwd} <password> ] [ {-P | --ask-password} ] [ --run-as <username> ] [ {-u | --username} <username> ] [ {-v | --verbose} ] [--] <function>
Options
| Name, shorthand | Description |
|---|---|
--krb5 | Use the Kerberos environment. |
--krb5-disable-rdns | Disable reverse DNS lookup for Kerberos clients. |
--overwrite | Overwrite an existing stored function with the same name. |
-p <password>, --passwd <password> | Password. |
-P, --ask-password | Prompt for password. |
--run-as <username> | User to impersonate when running the command |
--server <server url> | URL of Stardog Server. If this option isn’t specified, it will be read from JVM argument ‘stardog.default.cli.server’. If the JVM arg isn’t set, the default value ‘http://localhost:5820’ is used. If server URL has no explicit port value, the default port value ‘5820’ is used. Example: ‘stardog-admin –server http://12.34.56.78:5820 server stop’ |
-u <username>, --username <username> | User name. |
-v, --verbose | Flag that can cause more detailed information to be printed such as errors and status. Exact output depends upon the command and options used. |
-- | This option can be used to separate command-line options from the list of argument(s). (Useful when an argument might be mistaken for a command-line option) |
<function> | The definition of the stored function in the format “FUNCTION name([parameter[, parameter]*]) { |
Discussion
Adds a new stored function. Stored functions assign a name to a SPARQL function expression and allows the expression to be executed in a SPARQL query by using the name. Stored functions can be used to query any database.
Examples
Adds a new stored function:
$ stardog-admin function add "function permutation(?n, ?r) { factorial(?n) / factorial(?n - ?r) }"
Adds a new stored function overwriting previous function with same name:
$ stardog-admin function add --overwrite "function combination(?n, ?r) { permutation(?n, ?r) / factorial(?r) }"
Adds multiple stored functions:
$ stardog-admin function add "function permutation(?n, ?r) { factorial(?n) / factorial(?n - ?r) } \
function combination(?n, ?r) { permutation(?n, ?r) / factorial(?r) }"