org.apache.tinkerpop.gremlin.structure.service

Class ServiceRegistry

java.lang.Object

org.apache.tinkerpop.gremlin.structure.service.ServiceRegistry

All Implemented Interfaces:

AutoCloseable, Service, Service.DirectoryService, Service.ServiceFactory

Direct Known Subclasses:

TinkerServiceRegistry

public class ServiceRegistry
extends Object
implements Service.DirectoryService, AutoCloseable

A basic service registry implementation used by CallStep. This service registry contains one meta-service - the Service.DirectoryService, which is used to list and describe registered callable services.

Author:

Mike Personick (http://github.com/mikepersonick)

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service.DirectoryService

Service.DirectoryService.Params

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service

Service.DirectoryService<I>, Service.Exceptions, Service.ServiceCallContext, Service.ServiceFactory<I,R>, Service.Type

Field Summary

Fields

Modifier and Type	Field and Description
static ServiceRegistry	EMPTY Empty instance, for the Graph interface.

Fields inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service.DirectoryService

NAME

Constructor Summary

Constructors

Constructor and Description
ServiceRegistry()

Method Summary

Modifier and Type	Method and Description
void	checkRegisteredService(String service) Check for non-null and registered.
void	close() Services can implement cleanup/shutdown procedures here.
protected String	describe(Service.ServiceFactory service) Provide a service description for the supplied service.
CloseableIterator	execute(Service.ServiceCallContext ctx, Map params) Service.DirectoryService execution.
Service	get(String service, boolean isStart, Map params) Lookup a service by name.
Service.ServiceFactory	registerService(Service.ServiceFactory serviceFactory) Register a callable service.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service.DirectoryService

createService, describeParams, getName, getSupportedTypes, getType

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service

execute, execute, getMaxBarrierSize, getRequirements, isBarrier, isStart, isStreaming

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.service.Service.ServiceFactory

getRequirements, getRequirementsByType

Field Detail

EMPTY

public static final ServiceRegistry EMPTY

Empty instance, for the Graph interface.

Constructor Detail

ServiceRegistry

public ServiceRegistry()

Method Detail

registerService

public Service.ServiceFactory registerService(Service.ServiceFactory serviceFactory)

Register a callable service.

checkRegisteredService

public void checkRegisteredService(String service)

Check for non-null and registered.

get

public Service get(String service,
                   boolean isStart,
                   Map params)

Lookup a service by name.

execute

public CloseableIterator execute(Service.ServiceCallContext ctx,
                                 Map params)

Service.DirectoryService execution. List or describe the registered callable services.

Specified by:

execute in interface Service

Specified by:

execute in interface Service.DirectoryService

describe

protected String describe(Service.ServiceFactory service)

Provide a service description for the supplied service.

close

public void close()

Description copied from interface: Service

Services can implement cleanup/shutdown procedures here.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Service

Specified by:

close in interface Service.DirectoryService

Specified by:

close in interface Service.ServiceFactory