Description

Service for paging SPARQL results.

AdvancedSparqlService initializes this service, so manual init is not needed.

Usage

new PagerService(sparqlQry, resultSetQry, itemsPerPage, getResults, pagesPerQuery, [itemCount]);

Param	Type	Details
sparqlQry	string	The SPARQL query.
resultSetQry	string	The result set subquery part of the query - i.e. the part which defines the distinct objects that are being paged (containing `<PAGE>` as a placeholder for SPARQL limit and offset).
itemsPerPage	number	The size of a single page.
getResults	function	A function that returns a promise of results given a SPARQL query.
pagesPerQuery	number	The number of pages to get per query. (default: 1)
[itemCount]	number	The total number of items that the sparqlQry returns. Optional, will be queried based on the resultSetQry if not given.

Param	Type	Details
chunkSize	number	The amount of results to get per query.

Get a specific "page" of data.

Param	Type	Details
pageNo	string	The number of the page to get (0-indexed).
[size]	number	The page size. Changes the configured page size. Using this parameter is not recommended, and may be removed in the future.

A promise of the page of the query results as objects.