Module dk.cloudcreate.essentials.reactive
Package dk.cloudcreate.essentials.reactive.command

Interface CommandHandler

All Known Implementing Classes:
AnnotatedCommandHandler
public interface CommandHandler
Common interface for all Command message handlers
A command handler can choose support to 1 or more command types
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    canHandle(Class<?> commandType)
    This method is called by the LocalCommandBus to check if this concrete CommandHandler supports a given command type
    Object
    handle(Object command)
    This method is called by the LocalCommandBus after it has determined that only this CommandHandler instance is capable of handling the command (based on the commands type)

  • Method Details

    • canHandle

      boolean canHandle(Class<?> commandType)
      This method is called by the LocalCommandBus to check if this concrete CommandHandler supports a given command type
      Parameters:
      commandType - the type of command being processed by the LocalCommandBus
      Returns:
      true if this command handler can handle a command of the given type - otherwise it must return false

    • handle

      Object handle(Object command)
      This method is called by the LocalCommandBus after it has determined that only this CommandHandler instance is capable of handling the command (based on the commands type)
      Parameters:
      command - the command
      Returns:
      the result of handling the command (if any)