public interface EvaluationStrategy extends FederatedServiceResolver
Modifier and Type | Method and Description |
---|---|
CloseableIteration<BindingSet,QueryEvaluationException> |
evaluate(Service expr,
String serviceUri,
CloseableIteration<BindingSet,QueryEvaluationException> bindings)
Evaluates the tuple expression against the supplied triple source with the
specified set of variable bindings as input.
|
CloseableIteration<BindingSet,QueryEvaluationException> |
evaluate(TupleExpr expr,
BindingSet bindings)
Evaluates the tuple expression against the supplied triple source with the
specified set of variable bindings as input.
|
Value |
evaluate(ValueExpr expr,
BindingSet bindings)
Gets the value of this expression.
|
FederatedService |
getService(String serviceUrl)
Retrieve the
FederatedService registered for serviceUrl. |
boolean |
isTrue(ValueExpr expr,
BindingSet bindings)
Evaluates the boolean expression on the supplied TripleSource object.
|
FederatedService getService(String serviceUrl) throws QueryEvaluationException
FederatedService
registered for serviceUrl. If there
is no service registered for serviceUrl, a new
SPARQLFederatedService
is created and registered.getService
in interface FederatedServiceResolver
serviceUrl
- URL of the service.FederatedService
registered for the serviceUrl.QueryEvaluationException
FederatedServiceResolver.getService(java.lang.String)
CloseableIteration<BindingSet,QueryEvaluationException> evaluate(Service expr, String serviceUri, CloseableIteration<BindingSet,QueryEvaluationException> bindings) throws QueryEvaluationException
expr
- The Service Expression to evaluateserviceUri
- TODObindings
- The variables bindings iterator to use for evaluating the
expression, if applicable.QueryEvaluationException
CloseableIteration<BindingSet,QueryEvaluationException> evaluate(TupleExpr expr, BindingSet bindings) throws QueryEvaluationException
expr
- The Tuple Expression to evaluatebindings
- The variables bindings to use for evaluating the expression, if
applicable.QueryEvaluationException
Value evaluate(ValueExpr expr, BindingSet bindings) throws ValueExprEvaluationException, QueryEvaluationException
bindings
- The variables bindings to use for evaluating the expression, if
applicable.ValueExprEvaluationException
QueryEvaluationException
boolean isTrue(ValueExpr expr, BindingSet bindings) throws ValueExprEvaluationException, QueryEvaluationException
bindings
- The variables bindings to use for evaluating the expression, if
applicable.ValueExprEvaluationException
- If the value expression could not be evaluated, for example when
comparing two incompatible operands. When thrown, the result of
the boolean expression is neither true nor false
, but unknown.QueryEvaluationException
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