org.eclipse.rdf4j.federated.util

Class FedXUtil

java.lang.Object

org.eclipse.rdf4j.federated.util.FedXUtil

public class FedXUtil
extends Object

General utility functions

Since:

5.0

Author:

Andreas Schwarte

Constructor Summary

Constructors

Constructor and Description
FedXUtil()

Method Summary

Modifier and Type	Method and Description
static void	applyMaxQueryExecutionTime(Operation operation, FederationContext federationContext) Set a maximum execution time corresponding to FedXConfig.getEnforceMaxQueryTime() to this operation.
static void	applyQueryBindings(SailQuery query) Apply query bindings to transfer information from the query into the evaluation routine, e.g.
static String	getIncrementalUUID() Hexadecimal representation of an incremental integer.
static IRI	iri(String iri)
static Literal	literal(String literal)
static ValueFactory	valueFactory()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FedXUtil

public FedXUtil()

Method Detail

iri

public static IRI iri(String iri)

Parameters:

iri -

Returns:

the IRI for the full URI string

literal

public static Literal literal(String literal)

Parameters:

literal -

Returns:

the string literal

valueFactory

public static ValueFactory valueFactory()

Returns:

a SimpleValueFactory instance

applyQueryBindings

public static void applyQueryBindings(SailQuery query)

Apply query bindings to transfer information from the query into the evaluation routine, e.g. the query execution time.

Parameters:

query -

getIncrementalUUID

public static String getIncrementalUUID()

Hexadecimal representation of an incremental integer.

Returns:

an incremental hex UUID

applyMaxQueryExecutionTime

public static void applyMaxQueryExecutionTime(Operation operation,
                                              FederationContext federationContext)

Set a maximum execution time corresponding to FedXConfig.getEnforceMaxQueryTime() to this operation. Note that this is an upper bound only as FedX applies other means for evaluation the maximum query execution time.

Parameters:

operation - the Operation

federationContext - the FederationContext