Updates

Updates — Graph update operations

Synopsis

                    rasqal_update_operation;
enum                rasqal_update_type;
enum                rasqal_update_flags;

Description

This class provides a object to record a graph update operation with adding and/or removing triples, using a templated insert/delete with optional where clause. It is designed to be able to record the SPARQL 1.1 (Draft) update format, and is a work in progress as of February 2010.

Details

rasqal_update_operation

typedef struct {
  rasqal_update_type type;

  raptor_uri* graph_uri;

  raptor_uri* document_uri;

  raptor_sequence* insert_templates;

  raptor_sequence* delete_templates;

  rasqal_graph_pattern* where;

  int flags;
} rasqal_update_operation;

Update operation - changing the dataset

rasqal_update_type `type`;	type of update
raptor_uri *`graph_uri`;	optional graph URI (clear, drop, load, with ... delete/insert)
raptor_uri *`document_uri`;	optional document URI (load)
raptor_sequence *`insert_templates`;	optional sequence of triple templates to insert
raptor_sequence *`delete_templates`;	optional sequence of triple templates to delete
rasqal_graph_pattern *`where`;	optional where template (insert/delete)
int `flags`;	update flags - bit-or of flags defined in rasqal_update_flags

enum rasqal_update_type

typedef enum {
  /* internal */
  RASQAL_UPDATE_TYPE_UNKNOWN   = 0,
  RASQAL_UPDATE_TYPE_CLEAR     = 1,
  RASQAL_UPDATE_TYPE_CREATE    = 2,
  RASQAL_UPDATE_TYPE_DROP      = 3,
  RASQAL_UPDATE_TYPE_LOAD      = 4,
  RASQAL_UPDATE_TYPE_UPDATE    = 5,

  /* internal */
  RASQAL_UPDATE_TYPE_LAST = RASQAL_UPDATE_TYPE_UPDATE
} rasqal_update_type;

Update type being performed.

`RASQAL_UPDATE_TYPE_UNKNOWN`	Internal
`RASQAL_UPDATE_TYPE_CLEAR`	Clear graph.
`RASQAL_UPDATE_TYPE_CREATE`	Create graph.
`RASQAL_UPDATE_TYPE_DROP`	Drop graph.
`RASQAL_UPDATE_TYPE_LOAD`	Load graph.
`RASQAL_UPDATE_TYPE_UPDATE`	Insert or Delete graph or triples.
`RASQAL_UPDATE_TYPE_LAST`	Internal

enum rasqal_update_flags

typedef enum {
  RASQAL_UPDATE_FLAGS_SILENT = 1,
  RASQAL_UPDATE_FLAGS_DATA = 2,
} rasqal_update_flags;

Flags for graph update operations

`RASQAL_UPDATE_FLAGS_SILENT`	the update operation should be silent
`RASQAL_UPDATE_FLAGS_DATA`	the update operation is triple data not templates

			Rasqal RDF Query Library Manual
Top \| Description