org.jboss.as.controller.capability.registry

Interface ImmutableCapabilityRegistry

All Known Subinterfaces:

RuntimeCapabilityRegistry

All Known Implementing Classes:

CapabilityRegistry

public interface ImmutableCapabilityRegistry

A read-only view of CapabilityRegistry Capability registry contains two kinds of capabilities: - possible capabilities which are defined on each resource to provide what said resource and provide at runtime - runtime or actual capabilities which are runtime instances of possible capabilities

Author:

Tomaz Cerar (c) 2015 Red Hat Inc.

Method Summary

Modifier and Type	Method and Description
Set<CapabilityRegistration>	getCapabilities() Returns set of runtime capabilities registered in the registry
<T> T	getCapabilityRuntimeAPI(String capabilityName, CapabilityScope scope, Class<T> apiType) Gets the runtime API associated with a given capability, if there is one.
org.jboss.msc.service.ServiceName	getCapabilityServiceName(String capabilityName, CapabilityScope scope, Class<?> serviceType) Gets the name of the service provided by the capability, if there is one.
Set<CapabilityRegistration>	getPossibleCapabilities() Returns set of possible capabilities with there registration points registered in the registry
Set<PathAddress>	getPossibleProviderPoints(CapabilityId capabilityId) Returns possible provider points for passed capabilityId
boolean	hasCapability(String capabilityName, CapabilityScope scope) Gets whether a runtime capability with the given name is registered.

Method Detail

hasCapability

boolean hasCapability(String capabilityName,
                      CapabilityScope scope)

Gets whether a runtime capability with the given name is registered.

Parameters:

capabilityName - the name of the capability. Cannot be null

scope - the scope in which to check for the capability

Returns:

true if there is a capability with the given name registered

getCapabilityRuntimeAPI

<T> T getCapabilityRuntimeAPI(String capabilityName,
                              CapabilityScope scope,
                              Class<T> apiType)

Gets the runtime API associated with a given capability, if there is one.

Type Parameters:

T - the java type that exposes the API

Parameters:

capabilityName - the name of the capability. Cannot be null

scope - the scope in which to resolve the capability. Cannot be null

apiType - class of the java type that exposes the API. Cannot be null

Returns:

the runtime API. Will not return null

Throws:

IllegalArgumentException - if the capability does not provide a runtime API

ClassCastException - if the runtime API exposed by the capability cannot be cast to type {code T}

getCapabilities

Set<CapabilityRegistration> getCapabilities()

Returns set of runtime capabilities registered in the registry

Returns:

read only Set with all runtime capabilities and where ware they registered

getPossibleCapabilities

Set<CapabilityRegistration> getPossibleCapabilities()

Returns set of possible capabilities with there registration points registered in the registry

Returns:

read only Set with all possible capabilities and where ware they registered

getCapabilityServiceName

org.jboss.msc.service.ServiceName getCapabilityServiceName(String capabilityName,
                                                           CapabilityScope scope,
                                                           Class<?> serviceType)

Gets the name of the service provided by the capability, if there is one.

Parameters:

capabilityName - the name of the capability. Cannot be null

scope - the scope in which to resolve the capability. Cannot be null

serviceType - the type of the value provided by the service. May be null if the caller is unconcerned about checking that its understanding of the service type provided by the capability is correct

Returns:

the service name. Will not return null

Throws:

IllegalStateException - if no capability with the given name is available in the given context

IllegalArgumentException - if the capability does not provide a service, or if serviceType is not null and the type of the service the capability provides is not assignable from it

getPossibleProviderPoints

Set<PathAddress> getPossibleProviderPoints(CapabilityId capabilityId)

Returns possible provider points for passed capabilityId

Parameters:

capabilityId - id of capability

Returns:

set of PathAddress-es where capability could be registered, will not return null but can be empty