Maintainer	defanor <defanor@uberspace.net>
Stability	unstable
Portability	non-portable (GHC extensions are used)
Safe Haskell	Safe
Language	Haskell2010

Redland.LowLevel

Contents

World
Hashes
RDF Graph (librdf_model)
RDF term (librdf_node)
Parsers
Querying
Query results
RDF Triple (librdf_statement)
Triple stores
Stream of triples (librdf_statement)
URI

Description

Low-level Redland RDF library bindings, a straightforward translation.

Synopsis

World

data RedlandWorld Source #

librdf_new_world :: IO (Ptr RedlandWorld) Source #

librdf_free_world :: Ptr RedlandWorld -> IO () Source #

p_librdf_free_world :: FinalizerPtr RedlandWorld Source #

librdf_world_open :: Ptr RedlandWorld -> IO () Source #

Hashes

data RedlandHash Source #

librdf_new_hash Source #

Arguments

:: Ptr RedlandWorld	world
-> CString	name
-> IO (Ptr RedlandHash)

librdf_free_hash :: Ptr RedlandHash -> IO () Source #

p_librdf_free_hash :: FinalizerPtr RedlandHash Source #

librdf_hash_put_strings Source #

Arguments

:: Ptr RedlandHash	hash
-> CString	key
-> CString	value
-> IO CInt	non-zero on failure

librdf_hash_get Source #

Arguments

:: Ptr RedlandHash	hash
-> CString	key
-> IO CString	must be freed by the caller

librdf_hash_get_del Source #

Arguments

:: Ptr RedlandHash	hash
-> CString	key
-> IO CString	must be freed by the caller

RDF Graph (librdf_model)

data RedlandModel Source #

librdf_new_model Source #

Arguments

:: Ptr RedlandWorld	world
-> Ptr RedlandStorage	storage
-> CString	options
-> IO (Ptr RedlandModel)

librdf_free_model :: Ptr RedlandModel -> IO () Source #

p_librdf_free_model :: FinalizerPtr RedlandModel Source #

librdf_model_query_execute Source #

Arguments

:: Ptr RedlandModel	model
-> Ptr RedlandQuery	query
-> IO (Ptr RedlandQueryResults)	NULL on failure

librdf_model_sync :: Ptr RedlandModel -> IO CInt Source #

librdf_model_load Source #

Arguments

:: Ptr RedlandModel
-> Ptr RedlandURI	source URI
-> CString	parser name, can be NULL
-> CString	MIME type, can be NULL
-> Ptr RedlandURI	type URI, can be NULL
-> IO CInt

librdf_model_find_statements :: Ptr RedlandModel -> Ptr RedlandStatement -> IO (Ptr RedlandStream) Source #

RDF term (librdf_node)

data RedlandNode Source #

librdf_new_node :: Ptr RedlandWorld -> IO (Ptr RedlandNode) Source #

librdf_free_node :: Ptr RedlandNode -> IO () Source #

p_librdf_free_node :: FinalizerPtr RedlandNode Source #

librdf_new_node_from_node Source #

Arguments

:: Ptr RedlandNode	old node
-> IO (Ptr RedlandNode)

librdf_new_node_from_blank_identifier Source #

Arguments

:: Ptr RedlandWorld
-> CString	blank node identifier, can be NULL
-> IO (Ptr RedlandNode)

librdf_new_node_from_literal Source #

Arguments

:: Ptr RedlandWorld
-> CString	string value
-> CString	literal XML language, can be NULL
-> CInt	non-zero if literal is XML
-> IO (Ptr RedlandNode)

librdf_new_node_from_typed_literal Source #

Arguments

:: Ptr RedlandWorld
-> CString	string value
-> CString	literal XML language, can be NULL
-> Ptr RedlandURI	typed literal datatype URI, can be NULL
-> IO (Ptr RedlandNode)

librdf_new_node_from_uri :: Ptr RedlandWorld -> Ptr RedlandURI -> IO (Ptr RedlandNode) Source #

librdf_new_node_from_uri_string :: Ptr RedlandWorld -> CString -> IO (Ptr RedlandNode) Source #

librdf_node_get_blank_identifier Source #

Arguments

:: Ptr RedlandNode
-> IO CString	identifier

librdf_node_get_literal_value Source #

Arguments

:: Ptr RedlandNode
-> IO CString	Literal value, must be copied

librdf_node_get_uri Source #

Arguments

:: Ptr RedlandNode
-> IO (Ptr RedlandURI)	URI, must be copied

librdf_node_is_blank :: Ptr RedlandNode -> IO CInt Source #

librdf_node_is_literal :: Ptr RedlandNode -> IO CInt Source #

librdf_node_is_resource :: Ptr RedlandNode -> IO CInt Source #

librdf_node_to_string :: Ptr RedlandNode -> IO CString Source #

Parsers

data RedlandParser Source #

librdf_new_parser Source #

Arguments

:: Ptr RedlandWorld	world
-> CString	name
-> CString	MIME type
-> Ptr RedlandURI	type URI
-> IO (Ptr RedlandParser)

librdf_free_parser :: Ptr RedlandParser -> IO () Source #

p_librdf_free_parser :: FinalizerPtr RedlandParser Source #

librdf_parser_parse_string_into_model Source #

Arguments

:: Ptr RedlandParser	parser
-> CString	string to parse
-> Ptr RedlandURI	base URI
-> Ptr RedlandModel	model
-> IO CInt	non-zero on failure

librdf_parser_guess_name2 Source #

Arguments

:: Ptr RedlandWorld
-> CString	MIME type or NULL
-> CString	content buffer or NULL
-> CString	content identifier or NULL
-> IO CString	parser name or NULL

Querying

data RedlandQuery Source #

librdf_new_query Source #

Arguments

:: Ptr RedlandWorld
-> CString	language name
-> Ptr RedlandURI	language URI (can be NULL)
-> CString	query string
-> Ptr RedlandURI	base URI (can be NULL)
-> IO (Ptr RedlandQuery)

librdf_free_query :: Ptr RedlandQuery -> IO () Source #

p_librdf_free_query :: FinalizerPtr RedlandQuery Source #

librdf_query_execute Source #

Arguments

:: Ptr RedlandQuery	query
-> Ptr RedlandModel	model
-> IO (Ptr RedlandQueryResults)	NULL on failure

Query results

data RedlandQueryResults Source #

librdf_free_query_results :: Ptr RedlandQueryResults -> IO () Source #

p_librdf_free_query_results :: FinalizerPtr RedlandQueryResults Source #

librdf_query_results_get_count :: Ptr RedlandQueryResults -> IO CInt Source #

librdf_query_results_next :: Ptr RedlandQueryResults -> IO CInt Source #

librdf_query_results_finished :: Ptr RedlandQueryResults -> IO CInt Source #

librdf_query_results_get_binding_value Source #

Arguments

:: Ptr RedlandQueryResults	results
-> CInt	offset
-> IO (Ptr RedlandNode)

librdf_query_results_get_binding_name Source #

Arguments

:: Ptr RedlandQueryResults	results
-> CInt	offset
-> IO CString

librdf_query_results_get_binding_value_by_name Source #

Arguments

:: Ptr RedlandQueryResults	results
-> CString	variable name
-> IO (Ptr RedlandNode)

librdf_query_results_get_bindings_count :: Ptr RedlandQueryResults -> IO CInt Source #

RDF Triple (librdf_statement)

data RedlandStatement Source #

librdf_new_statement :: Ptr RedlandWorld -> IO (Ptr RedlandStatement) Source #

librdf_free_statement :: Ptr RedlandStatement -> IO () Source #

p_librdf_free_statement :: FinalizerPtr RedlandStatement Source #

librdf_new_statement_from_nodes :: Ptr RedlandWorld -> Ptr RedlandNode -> Ptr RedlandNode -> Ptr RedlandNode -> IO (Ptr RedlandStatement) Source #

"The node objects become owned by the new statement (or freed on error)."

librdf_new_statement_from_statement :: Ptr RedlandStatement -> IO (Ptr RedlandStatement) Source #

librdf_statement_get_subject Source #

Arguments

:: Ptr RedlandStatement
-> IO (Ptr RedlandNode)	the returned node is shared, should be copied

librdf_statement_set_subject Source #

Arguments

:: Ptr RedlandStatement
-> Ptr RedlandNode	becomes owned by the statement
-> IO ()

librdf_statement_get_predicate :: Ptr RedlandStatement -> IO (Ptr RedlandNode) Source #

librdf_statement_set_predicate :: Ptr RedlandStatement -> Ptr RedlandNode -> IO () Source #

librdf_statement_get_object :: Ptr RedlandStatement -> IO (Ptr RedlandNode) Source #

librdf_statement_set_object :: Ptr RedlandStatement -> Ptr RedlandNode -> IO () Source #

Triple stores

data RedlandStorage Source #

librdf_new_storage Source #

Arguments

:: Ptr RedlandWorld	world
-> CString	storage type name (e.g., "hashes")
-> CString	storage identifier
-> CString	options
-> IO (Ptr RedlandStorage)

librdf_free_storage :: Ptr RedlandStorage -> IO () Source #

p_librdf_free_storage :: FinalizerPtr RedlandStorage Source #

librdf_new_storage_with_options Source #

Arguments

:: Ptr RedlandWorld	world
-> CString	storage type name (e.g., "hashes")
-> CString	storage identifier
-> Ptr RedlandHash	options
-> IO (Ptr RedlandStorage)

Stream of triples (librdf_statement)

data RedlandStream Source #

librdf_free_stream :: Ptr RedlandStream -> IO () Source #

p_librdf_free_stream :: FinalizerPtr RedlandStream Source #

librdf_stream_end :: Ptr RedlandStream -> IO CInt Source #

librdf_stream_next :: Ptr RedlandStream -> IO CInt Source #

librdf_stream_get_object Source #

Arguments

:: Ptr RedlandStream
-> IO (Ptr RedlandStatement)	a shared statement, should be copied

URI

data RedlandURI Source #

librdf_new_uri Source #

Arguments

:: Ptr RedlandWorld	world
-> CString	URI string
-> IO (Ptr RedlandURI)

librdf_free_uri :: Ptr RedlandURI -> IO () Source #

p_librdf_free_uri :: FinalizerPtr RedlandURI Source #

librdf_new_uri_from_uri Source #

Arguments

:: Ptr RedlandURI	old URI
-> IO (Ptr RedlandURI)

librdf_uri_as_string :: Ptr RedlandURI -> IO CString Source #