Contents
Class QueryContext
java.lang.Object
org.eclipse.rdf4j.query.algebra.evaluation.QueryContext
A
is responsible for initialising a QueryContext and making it
available during evaluation via
QueryContext
provides a means to pass arbitrary local state to a
Function
or
TupleFunction
. The implementation of
invalid reference
org.eclipse.rdf4j.sail.SailConnection#evaluate()
QueryContextIteration
. A
QueryContext is commonly used to provide a QueryPreparer
for the current SailConnection. This allows, for
example, Functions to be written that conveniently express more complex queries.-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
begin()
void
end()
<T> T
getAttribute
(String name) static QueryContext
void
setAttribute
(String name, Object value)