diff options
Diffstat (limited to 'sord')
| -rw-r--r-- | sord/sord.h | 62 |
1 files changed, 23 insertions, 39 deletions
diff --git a/sord/sord.h b/sord/sord.h index bc69875..90c3bf6 100644 --- a/sord/sord.h +++ b/sord/sord.h @@ -53,12 +53,11 @@ typedef struct _Sord* Sord; ///< Quad store typedef struct _SordIter* SordIter; ///< Store iterator typedef struct _SordNode* SordNode; ///< Node -typedef void* SordID; ///< Integer ID of a Node (0 reserved for NULL) /** Quad of IDs (statement), or a quad pattern. * Nodes are ordered (S P O G). The ID of the default graph is 0. */ -typedef SordID SordQuad[4]; +typedef SordNode SordQuad[4]; /** Index into a SordQuad. */ typedef enum { @@ -89,85 +88,70 @@ typedef enum { * @{ */ -/** Create a new store. */ +/** Create a new store. + * @param indices SordIndexOption flags (e.g. SORD_SPO|SORD_OPS). + * Be sure to choose indices such that there is an index where the most + * significant node(s) are not variables for your queries. For example, + * if you are going to make (? P O) queries, you should enable either + * SORD_OPS or SORD_POS. + * @param graphs If true, store (and index) graph contexts. + */ SORD_API Sord sord_new(unsigned indices, bool graphs); -/** Close and free @a sord, leaving disk data intact. */ +/** Close and free @a sord. */ SORD_API void sord_free(Sord sord); /** @} */ -/** @name Node Loading - * Searching for node IDs by value and loading nodes from disk by ID. +/** @name Nodes + * A Node is a component of a Quad. Nodes may be URIs, blank nodes, or + * (in the case of quad objects only) string literals. Literal nodes may + * have an associate language or datatype (but not both). * @{ */ -/** Dereference an ID, loading node data into memory. - * The returned node is allocated memory owned by @a sord, - * it can only be freed by the caller via sord_clear_cache. - */ -SORD_API -SordNode -sord_node_load(Sord sord, SordID id); - -/** Set @a s, @a p, and @a o to the nodes in @a tup. */ -SORD_API -void -sord_quad_load(Sord sord, - SordQuad tup, - SordNode* s, - SordNode* p, - SordNode* o); - /** Find a URI, creating a new one if necessary iff @a create is true. * Use sord_get_uri_counted instead if the length of @a str is known. */ SORD_API -SordID +SordNode sord_get_uri(Sord sord, bool create, const uint8_t* str); /** Find a URI, creating a new one if necessary iff @a create is true. */ SORD_API -SordID +SordNode sord_get_uri_counted(Sord sord, bool create, const uint8_t* str, int str_len); /** Find a blank, creating a new one if necessary iff @a create is true * Use sord_get_blank_counted instead if the length of @a str is known. */ SORD_API -SordID +SordNode sord_get_blank(Sord sord, bool create, const uint8_t* str); /** Find a blank, creating a new one if necessary iff @a create is true. */ SORD_API -SordID +SordNode sord_get_blank_counted(Sord sord, bool create, const uint8_t* str, int str_len); /** Find a literal, creating a new one if necessary iff @a create is true. * Use sord_get_literal_counted instead if the length of @a str is known. */ SORD_API -SordID -sord_get_literal(Sord sord, bool create, SordID type, +SordNode +sord_get_literal(Sord sord, bool create, SordNode type, const uint8_t* str, const char* lang); /** Find a literal, creating a new one if necessary iff @a create is true. */ SORD_API -SordID -sord_get_literal_counted(Sord sord, bool create, SordID type, +SordNode +sord_get_literal_counted(Sord sord, bool create, SordNode type, const uint8_t* str, int str_len, const char* lang, uint8_t lang_len); - -/** @} */ -/** @name Node Values - * Investigating loaded (in-memory) node values. - * @{ - */ - /** Return the type of a node (SORD_URI, SORD_BLANK, or SORD_LITERAL). */ SORD_API SordNodeType @@ -259,7 +243,7 @@ sord_remove_iter(Sord sord, SordIter iter); /** Remove a graph from the store. */ SORD_API void -sord_remove_graph(Sord sord, SordID graph); +sord_remove_graph(Sord sord, SordNode graph); /** @} */ /** @name Iteration |