io.axoniq.axonserver.connector.command

Interface CommandChannel

All Known Implementing Classes:

CommandChannelImpl

public interface CommandChannel

Communication channel with AxonServer for Command related interactions.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	prepareDisconnect() Prepares this CommandChannel to disconnect, by unsubscribing all registered command handlers.
Registration	registerCommandHandler(Function<Command,CompletableFuture<CommandResponse>> handler, int loadFactor, String... commandNames) Registers the given handler to handle incoming commands with given commandNames, using the given loadFactor.
CompletableFuture<CommandResponse>	sendCommand(Command command) Sends the give Command to AxonServer for routing to an appropriate handler.

Method Detail

registerCommandHandler

Registration registerCommandHandler(Function<Command,CompletableFuture<CommandResponse>> handler,
                                    int loadFactor,
                                    String... commandNames)

Registers the given handler to handle incoming commands with given commandNames, using the given loadFactor. If handlers had already been registered for any of the given command names, this registration replaces the existing one for those command names. Other commands remain unaffected.

Parameters:

handler - the handler to handle incoming commands with

loadFactor - the relative load factor for this handler

commandNames - the names of the commands to register the handler for

Returns:

a registration which allows the command handler to be deregistered

sendCommand

CompletableFuture<CommandResponse> sendCommand(Command command)

Sends the give Command to AxonServer for routing to an appropriate handler.

Parameters:

command - the command to send

Returns:

a CompletableFuture providing the result of command execution

prepareDisconnect

CompletableFuture<Void> prepareDisconnect()

Prepares this CommandChannel to disconnect, by unsubscribing all registered command handlers. Will wait with a certain cut off until all acknowledgments of unsubscribing have been received.

This method should be used if a connected client wants to disconnect from AxonServer.

Returns:

a CompletableFuture of Void to react when all command handlers have been unsubscribed