This is built if --with-perl is given to the configure line, or --with-perl=perl5.8 to use a particular perl version/program. The standard 'make' at the top level will build it.
You can also compile the perl interface by hand as follows:
cd perl make make check # optional
To install it system wide (this is optional) do this as root:
root# make install
The Redland interface has been tested with Perl 5.8.0, 5.6.1, 5.6.0 and (in the past) 5.005 however it probably requires 5.6.0 minimum.
If you did the optional install above, run the perl example program with:
perl ./example.pl
Otherwise, to run in the source tree do:
perl -Iblib/arch -Iblib/lib ./example.pl
and the result should be:
Creating storage Creating model Creating statement Adding statement to model Adding statement (new Statement(n, n, n)) to model Adding statement (n,n,n) to model Parsing URI (file) dc.rdf Parsing added 3 statements Printing all statements Statement: {[http://example.org/foo], [http://example.org/foo], [http://example.org/foo]} Statement: {[http://example.org/foo], [http://example.org/foo], [http://example.org/foo]} Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/title], "Dave Beckett's Home Page"} Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/creator], "Dave Beckett"} Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/creator], "Dave Beckett"} Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/description], "The generic home page of Dave Beckett."} Searching model for statements matching predicate http://purl.org/dc/elements/1.1/creator Matching Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/creator], "Dave Beckett"} Subject: [http://purl.org/net/dajobe/] Predicate: [http://purl.org/dc/elements/1.1/creator] Object: Dave Beckett Matching Statement: {[http://purl.org/net/dajobe/], [http://purl.org/dc/elements/1.1/creator], "Dave Beckett"} Subject: [http://purl.org/net/dajobe/] Predicate: [http://purl.org/dc/elements/1.1/creator] Object: Dave Beckett Searching model for targets of subject http://purl.org/net/dajobe/ predicate http://purl.org/dc/elements/1.1/creator Matching Node: Dave Beckett Matching Node: Dave Beckett Writing model to test-out.rdf as rdf/xml Done
The Perl API is an object-based API reflecting the same structure of the Redland objects with simple mappings between them:
Concept | Redland Class | Perl Class | Purpose |
---|---|---|---|
Resource / Literal | librdf_node | RDF::Redland::Node | RDF Model & Syntax nodes |
Statement / Triple | librdf_statement | RDF::Redland::Statement | RDF Model & Syntax arcs (statements, triples) [isa Resource] |
Model | librdf_model | RDF::Redland::Model | Set of Statements usually held in one Storage. |
Storage | librdf_storage | RDF::Redland::Storage | Storage for Models either persistant or in-memory. |
Stream | librdf_stream | RDF::Redland::Stream | Providing sequences of Statements from Parsers, queries. |
Parser | librdf_parser | RDF::Redland::Parser | Syntaxes parsers delivering Stream of Statements or writing to a Model |
Serializer | librdf_serializer | RDF::Redland::Serializer | Serializes a Model into a syntax such as RDF/XML |
Iterator | librdf_iterator | RDF::Redland::Iterator | Enumerating lists (of Node) from queries. |
URI | librdf_uri | RDF::Redland::URI | Provides URIs for Resources, Parsers, ... |
World | RDF::Redland | RDF wrapper class handling Redland startup/shutdown | |
Digest | librdf_digest | Internal content digest class | |
Hash | librdf_hash | Internal key:value maps class | |
List | librdf_list | Internal list class | |
RDF::Redland::RSS | Perl Module providing RSS 1.0 support. |
Either use any of the RDF::Redland:: module links above or start at the main RDF::Redland module and follow the references from there.
Copyright 2000-2003 Dave Beckett, Institute for Learning and Research Technology, University of Bristol