rdflib.sparql.sparqlOperators

Package rdflib :: Package sparql :: Module sparqlOperators

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Module rdflib.sparql.sparqlOperators

Function Summary
	`addOperator(args, combinationArg)` SPARQL numeric + operator implemented via Python
	`bound(a)`
	`datatype(a)`
	`eq(a, b)`
	`ge(a, b)`
	`getLiteralValue(v)`
	`getValue(param)`
	`gt(a, b)`
	`isBlank(a)`
	`isIRI(a)`
	`isLiteral(a)`
	`isOnCollection(collection, item)` Generate a method that can be used as a global constaint in sparql to check whether the 'item' is an element of the 'collection' (a.k.a.
	`isURI(a)`
	`lang(a)`
	`le(a, b)`
	`lt(a, b)`
	`neq(a, b)`
	`queryString(v)`
	`regex(item, pattern, flag)` Invokes the XPath fn:matches function to match text against a regular expression pattern.
	`str(a)`
	`XSDCast(source, target)` XSD Casting/Construction Support For now (this may be an issue since Literal doesn't override comparisons) it simply creates a Literal with the target datatype using the 'lexical' value of the source

Function Details

addOperator(args, combinationArg)

SPARQL numeric + operator implemented via Python

isOnCollection(collection, item)

Generate a method that can be used as a global constaint in sparql to check whether the 'item' is an element of the 'collection' (a.k.a. list). Both collection and item can be a real resource or a query string. Furthermore, item might be a plain string, that is then turned into a literal run-time. The method returns an adapted method.

regex(item, pattern, flag=None)

Invokes the XPath fn:matches function to match text against a regular expression pattern. The regular expression language is defined in XQuery 1.0 and XPath 2.0 Functions and Operators section 7.6.1 Regular Expression Syntax

XSDCast(source, target=None)

XSD Casting/Construction Support For now (this may be an issue since Literal doesn't override comparisons) it simply creates a Literal with the target datatype using the 'lexical' value of the source

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