Class TupleFunctionRegistry

java.lang.Object

org.eclipse.rdf4j.common.lang.service.ServiceRegistry<String, TupleFunction>

org.eclipse.rdf4j.query.algebra.evaluation.function.TupleFunctionRegistry

public class TupleFunctionRegistry
extends ServiceRegistry<String, TupleFunction>

Field Summary

Fields inherited from class ServiceRegistry

logger, services

Modifier and Type	Field	Description
protected final org.slf4j.Logger	logger
protected Map<String, TupleFunction>	services

Constructor Summary

Constructors

Constructor	Description
TupleFunctionRegistry()

Method Summary

Modifier and Type	Method	Description
static TupleFunctionRegistry	getInstance()	Gets the default TupleFunctionRegistry.
protected String	getKey(TupleFunction function)	Gets the key for the specified service.

Methods inherited from class ServiceRegistry

add, get, getAll, getKeys, has, remove

Modifier and Type	Method	Description
Optional<TupleFunction>	add(TupleFunction service)	Adds a service to the registry.
Optional<TupleFunction>	get(String key)	Gets the service for the specified key, if any.
Collection<TupleFunction>	getAll()	Gets all registered services.
Set<String>	getKeys()	Gets the set of registered keys.
boolean	has(String key)	Checks whether a service for the specified key is available.
void	remove(TupleFunction service)	Removes a service from the registry.

Methods inherited from class Object

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

Constructor Details

TupleFunctionRegistry

public TupleFunctionRegistry()

Method Details

getInstance

public static TupleFunctionRegistry getInstance()

Gets the default TupleFunctionRegistry.

Returns:

The default registry.

getKey

protected String getKey(TupleFunction function)

Description copied from class: ServiceRegistry

Gets the key for the specified service.

Specified by:

getKey in class ServiceRegistry<String, TupleFunction>

Parameters:

function - The service to get the key for.

Returns:

The key for the specified service.