Package org.eclipse.rdf4j.query.parser.sparql.aggregate

Class CustomAggregateFunctionRegistry

java.lang.Object

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

org.eclipse.rdf4j.query.parser.sparql.aggregate.CustomAggregateFunctionRegistry

@Experimental
public class CustomAggregateFunctionRegistry
extends ServiceRegistry<String,AggregateFunctionFactory>

ServiceRegistry implementation that stores available custom aggregate functions that can be used during query evaluation.

Author:

Tomas Kovachev t.kovachev1996@gmail.com

Field Summary

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

logger, services

Constructor Summary

Constructors

Constructor	Description
CustomAggregateFunctionRegistry()

Method Summary

Modifier and Type	Method	Description
static CustomAggregateFunctionRegistry	getInstance()
protected String	getKey(AggregateFunctionFactory service)	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 Detail

CustomAggregateFunctionRegistry

public CustomAggregateFunctionRegistry()

Method Detail

getInstance

public static CustomAggregateFunctionRegistry getInstance()

getKey

protected String getKey(AggregateFunctionFactory service)

Description copied from class: ServiceRegistry

Gets the key for the specified service.

Specified by:

getKey in class ServiceRegistry<String,AggregateFunctionFactory>

Parameters:

service - The service to get the key for.

Returns:

The key for the specified service.