org.axonframework.extensions.springcloud.commandhandling.mode

Interface CapabilityDiscoveryMode

All Known Implementing Classes:

AbstractCapabilityDiscoveryMode, AcceptAllCommandsDiscoveryMode, IgnoreListingDiscoveryMode, RestCapabilityDiscoveryMode

public interface CapabilityDiscoveryMode

Interface towards defining an approach of discovering and maintaining the local and remote MemberCapabilities of ServiceInstances.

Since:

4.4

Author:

Steven van Beelen

Method Summary

Modifier and Type	Method and Description
Optional<MemberCapabilities>	capabilities(org.springframework.cloud.client.ServiceInstance serviceInstance) Discovers the capabilities of the given serviceInstance, returning an Optional MemberCapabilities.
void	updateLocalCapabilities(org.springframework.cloud.client.ServiceInstance localInstance, int loadFactor, org.axonframework.commandhandling.distributed.CommandMessageFilter commandFilter) Update the capabilities of the localInstance, defined through the given loadFactor and commandFilter.

Method Detail

updateLocalCapabilities

void updateLocalCapabilities(org.springframework.cloud.client.ServiceInstance localInstance,
                             int loadFactor,
                             org.axonframework.commandhandling.distributed.CommandMessageFilter commandFilter)

Update the capabilities of the localInstance, defined through the given loadFactor and commandFilter.

Parameters:

localInstance - the local ServiceInstance

loadFactor - the load factor of the local instance, defining the amount of load this instance can carry

commandFilter - a filter defining the CommandMessages the local instance is capable of handling

capabilities

Optional<MemberCapabilities> capabilities(org.springframework.cloud.client.ServiceInstance serviceInstance)
                                   throws ServiceInstanceClientException

Discovers the capabilities of the given serviceInstance, returning an Optional MemberCapabilities.

Parameters:

serviceInstance - the ServiceInstance to discover MemberCapabilities for

Returns:

an Optional MemberCapabilities, based on the given serviceInstance

Throws:

ServiceInstanceClientException - whenever the ServiceInstance returns a client specific exception