Rasqal RDF Query Library API Reference Manual | ||
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rasqal_query
query object
user data pointer for callback
generate blank ID callback function
Sets the function to generate blank node IDs for the query.
The handler is called with a pointer to the rasqal_query, the
user_data
pointer and a user_bnodeid which is the value of
a user-provided blank node identifier (may be NULL).
It can either be returned directly as the generated value when present or
modified. The passed in value must be freed if it is not used.
If handler is NULL, the default method is used
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rasqal_query_set_default_generate_bnodeid_parameters | Up | rasqal_free_memory |