Class FunctionRegistry

java.lang.Object

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

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

public class FunctionRegistry
extends ServiceRegistry<String,Function>

A ServiceRegistry for implementations of the Function interface. Functions are registered by their IRI.

Author:

Arjohn Kampman

Field Summary

Fields inherited from class org.eclipse.rdf4j.common.lang.service.ServiceRegistry

logger, services

Constructor Summary

Constructors

Constructor	Description
FunctionRegistry()

Method Summary

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

Methods inherited from class org.eclipse.rdf4j.common.lang.service.ServiceRegistry

add, get, getAll, getKeys, has, remove

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionRegistry

public FunctionRegistry()

Method Details

getInstance

public static FunctionRegistry getInstance()

Gets the default FunctionRegistry.

Returns:

The default registry.

getKey

protected String getKey(Function function)

Description copied from class: ServiceRegistry

Gets the key for the specified service.

Specified by:

getKey in class ServiceRegistry<String,Function>

Parameters:

function - The service to get the key for.

Returns:

The key for the specified service.