Configuration (Axon Framework 4.0 API)

All Known Implementing Classes:

AxonConfiguration
```
public interface Configuration
```
Interface describing the Global Configuration for Axon components. It provides access to the components configured, such as the Command Bus and Event Bus.
Note that certain components in the Configuration may need to be started. Therefore, before using any of the components provided by this configuration, ensure that start() has been invoked.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default CommandBus`	`commandBus()` Returns the Command Bus defined in this Configuration.
`default CommandGateway`	`commandGateway()` Returns the Command Gateway defined in this Configuration.
`List<CorrelationDataProvider>`	`correlationDataProviders()` Returns the Correlation Data Providers defined in this Configuration.
`default DeadlineManager`	`deadlineManager()` Returns the Deadline Manager defined in this Configuration.
`default EventBus`	`eventBus()` Retrieves the Event Bus defined in this Configuration.
`default EventProcessingConfiguration`	`eventProcessingConfiguration()` Returns the `EventProcessingConfiguration` defined in this Configuration.
`Serializer`	`eventSerializer()` Returns the `Serializer` defined in this Configuration to be used for serializing Event Message payload and their metadata.
`default EventStore`	`eventStore()` Returns the Event Store in this Configuration, if it is defined.
`default <T extends ModuleConfiguration> List<T>`	`findModules(Class<T> moduleType)` Finds all configuration modules of given `moduleType` within this configuration.
`default <T> T`	`getComponent(Class<T> componentType)` Returns the Component declared under the given `componentType`, typically the interface the component implements.
`<T> T`	`getComponent(Class<T> componentType, Supplier<T> defaultImpl)` Returns the Component declared under the given `componentType`, typically the interface the component implements, reverting to the given `defaultImpl` if no such component is defined.
`List<ModuleConfiguration>`	`getModules()` Returns all modules that have been registered with this Configuration.
`HandlerDefinition`	`handlerDefinition(Class<?> inspectedType)` Returns the Handler Definition defined in this Configuration for the given `inspectedType`.
`<M extends Message<?>> MessageMonitor<? super M>`	`messageMonitor(Class<?> componentType, String componentName)` Returns the message monitor configured for a component of given `componentType` and `componentName`.
`Serializer`	`messageSerializer()` Returns the `Serializer` defined in this Configuration to be used for serializing Message payloads and metadata.
`void`	`onShutdown(int phase, Runnable shutdownHandler)` Registers a handler to be executed when the Configuration is shut down.
`default void`	`onShutdown(Runnable shutdownHandler)` Registers a handler to be executed when the Configuration is shut down.
`void`	`onStart(int phase, Runnable startHandler)` Registers a handler to be executed when this Configuration is started.
`default void`	`onStart(Runnable startHandler)` Registers a handler to be executed when this Configuration is started.
`default ParameterResolverFactory`	`parameterResolverFactory()` Returns the Parameter Resolver Factory defined in this Configuration
`default QueryBus`	`queryBus()`
`default QueryGateway`	`queryGateway()` Returns the Query Gateway defined in this Configuration.
`default QueryUpdateEmitter`	`queryUpdateEmitter()` Returns the Query Update Emitter in this Configuration.
`<T> Repository<T>`	`repository(Class<T> aggregateType)` Returns the Repository configured for the given `aggregateType`.
`default ResourceInjector`	`resourceInjector()` Returns the ResourceInjector used to provide resources to Saga instances.
`default Serializer`	`serializer()` Returns the serializer defined in this Configuration
`void`	`shutdown()` Shuts down the components defined in this Configuration
`void`	`start()` Starts this configuration.
`EventUpcasterChain`	`upcasterChain()` Returns the EventUpcasterChain with all registered upcasters.

- Method Detail
  - eventBus
```
default EventBus eventBus()
```
    Retrieves the Event Bus defined in this Configuration.
    
    Returns:
    
    the Event Bus defined in this Configuration
  - eventStore
```
default EventStore eventStore()
```
    Returns the Event Store in this Configuration, if it is defined. If no Event Store is defined (but an Event Bus instead), this method throws an AxonConfigurationException.
    
    Returns:
    
    the Event Store defined in this Configuration
  - findModules
```
default <T extends ModuleConfiguration> List<T> findModules(Class<T> moduleType)
```
    Finds all configuration modules of given moduleType within this configuration.
    
    Type Parameters:
    
    T - The type of the configuration module
    
    Parameters:
    
    moduleType - The type of the configuration module
    
    Returns:
    
    configuration modules of moduleType defined in this configuration
  - commandBus
```
default CommandBus commandBus()
```
    Returns the Command Bus defined in this Configuration. Note that this Configuration should be started (see start()) before sending Commands over the Command Bus.
    
    Returns:
    
    the CommandBus defined in this configuration
  - queryBus
```
default QueryBus queryBus()
```
  - queryUpdateEmitter
```
default QueryUpdateEmitter queryUpdateEmitter()
```
    Returns the Query Update Emitter in this Configuration. Note that this Configuration should be started (see start() before emitting updates over Query Update Emitter.
    
    Returns:
    
    the QueryUpdateEmitter defined in this configuration
  - resourceInjector
```
default ResourceInjector resourceInjector()
```
    Returns the ResourceInjector used to provide resources to Saga instances.
    
    Returns:
    
    the ResourceInjector used to provide resources to Saga instances
  - commandGateway
```
default CommandGateway commandGateway()
```
    Returns the Command Gateway defined in this Configuration. Note that this Configuration should be started (see start()) before sending Commands using this Command Gateway.
    
    Returns:
    
    the CommandGateway defined in this configuration
  - eventProcessingConfiguration
```
default EventProcessingConfiguration eventProcessingConfiguration()
                                                           throws AxonConfigurationException
```
    Returns the EventProcessingConfiguration defined in this Configuration. If there aren't any defined, null will be returned. If there is exactly one, it will be returned. For case when there are multiple, an AxonConfigurationException is thrown and the getModules() API should be used instead.
    
    Returns:
    
    the EventProcessingConfiguration defined in this Configuration
    
    Throws:
    
    AxonConfigurationException - thrown if there are more than one Event Processing Configurations defined with this configuration
  - queryGateway
```
default QueryGateway queryGateway()
```
    Returns the Query Gateway defined in this Configuration. Note that this Configuration should be started (see start()) before sending Queries using this Query Gateway.
    
    Returns:
    
    the QueryGateway defined in this configuration
  - repository
```
<T> Repository<T> repository(Class<T> aggregateType)
```
    Returns the Repository configured for the given aggregateType.
    
    Type Parameters:
    
    T - The aggregate type
    
    Parameters:
    
    aggregateType - The aggregate type to find the repository for
    
    Returns:
    
    the repository from which aggregates of the given type can be loaded
  - getComponent
```
default <T> T getComponent(Class<T> componentType)
```
    Returns the Component declared under the given componentType, typically the interface the component implements.
    
    Type Parameters:
    
    T - The type of component
    
    Parameters:
    
    componentType - The type of component
    
    Returns:
    
    the component registered for the given type, or null if no such component exists
  - getComponent
```
<T> T getComponent(Class<T> componentType,
                   Supplier<T> defaultImpl)
```
    Returns the Component declared under the given componentType, typically the interface the component implements, reverting to the given defaultImpl if no such component is defined.
    When no component was previously registered, the default is then configured as the component for the given type.
    
    Type Parameters:
    
    T - The type of component
    
    Parameters:
    
    componentType - The type of component
    
    defaultImpl - The supplier of the default to return if no component was registered
    
    Returns:
    
    the component registered for the given type, or the value returned by the defaultImpl supplier, if no component was registered
  - messageMonitor
```
<M extends Message<?>> MessageMonitor<? super M> messageMonitor(Class<?> componentType,
                                                                String componentName)
```
    Returns the message monitor configured for a component of given componentType and componentName.
    
    Type Parameters:
    
    M - The type of message the monitor can deal with
    
    Parameters:
    
    componentType - The type of component to return the monitor for
    
    componentName - The name of the component
    
    Returns:
    
    The monitor to be used for the described component
  - serializer
```
default Serializer serializer()
```
    Returns the serializer defined in this Configuration
    
    Returns:
    
    the serializer defined in this Configuration
  - eventSerializer
```
Serializer eventSerializer()
```
    Returns the Serializer defined in this Configuration to be used for serializing Event Message payload and their metadata.
    
    Returns:
    
    the event serializer defined in this Configuration.
  - messageSerializer
```
Serializer messageSerializer()
```
    Returns the Serializer defined in this Configuration to be used for serializing Message payloads and metadata.
    
    Returns:
    
    the message serializer defined in this Configuration.
  - start
```
void start()
```
    Starts this configuration. All components defined in this Configuration will be started.
  - shutdown
```
void shutdown()
```
    Shuts down the components defined in this Configuration
  - correlationDataProviders
```
List<CorrelationDataProvider> correlationDataProviders()
```
    Returns the Correlation Data Providers defined in this Configuration.
    
    Returns:
    
    the Correlation Data Providers defined in this Configuration
  - parameterResolverFactory
```
default ParameterResolverFactory parameterResolverFactory()
```
    Returns the Parameter Resolver Factory defined in this Configuration
    
    Returns:
    
    the Parameter Resolver Factory defined in this Configuration
  - handlerDefinition
```
HandlerDefinition handlerDefinition(Class<?> inspectedType)
```
    Returns the Handler Definition defined in this Configuration for the given inspectedType.
    
    Parameters:
    
    inspectedType - The class to being inspected for handlers
    
    Returns:
    
    the Handler Definition defined in this Configuration
  - deadlineManager
```
default DeadlineManager deadlineManager()
```
    Returns the Deadline Manager defined in this Configuration.
    
    Returns:
    
    the Deadline Manager defined in this Configuration
  - getModules
```
List<ModuleConfiguration> getModules()
```
    Returns all modules that have been registered with this Configuration.
    
    Returns:
    
    all modules that have been registered with this Configuration
  - onStart
```
default void onStart(Runnable startHandler)
```
    Registers a handler to be executed when this Configuration is started.
    The behavior for handlers that are registered when the Configuration is already started is undefined.
    
    Parameters:
    
    startHandler - The handler to execute when the configuration is started
    
    See Also:
    
    start(), onShutdown(Runnable)
  - onStart
```
void onStart(int phase,
             Runnable startHandler)
```
    Registers a handler to be executed when this Configuration is started.
    The behavior for handlers that are registered when the Configuration is already started is undefined.
    
    Parameters:
    
    startHandler - The handler to execute when the configuration is started
    
    phase - defines a phase in which the start handler will be invoked during start() and shutdown(). When starting the configuration handlers are ordered in ascending, when shutting down the configuration, descending order is used.
    
    See Also:
    
    start(), onShutdown(Runnable)
  - onShutdown
```
default void onShutdown(Runnable shutdownHandler)
```
    Registers a handler to be executed when the Configuration is shut down.
    The behavior for handlers that are registered when the Configuration is already shut down is undefined.
    
    Parameters:
    
    shutdownHandler - The handler to execute when the Configuration is shut down
    
    See Also:
    
    shutdown(), onStart(Runnable)
  - onShutdown
```
void onShutdown(int phase,
                Runnable shutdownHandler)
```
    Registers a handler to be executed when the Configuration is shut down.
    The behavior for handlers that are registered when the Configuration is already shut down is undefined.
    
    Parameters:
    
    shutdownHandler - The handler to execute when the Configuration is shut down
    
    phase - defines a phase in which the shutdown handler will be invoked during start() and shutdown(). When starting the configuration handlers are ordered in ascending, when shutting down the configuration, descending order is used.
    
    See Also:
    
    shutdown(), onStart(Runnable)
  - upcasterChain
```
EventUpcasterChain upcasterChain()
```
    Returns the EventUpcasterChain with all registered upcasters.
    
    Returns:
    
    the EventUpcasterChain with all registered upcasters

Interface Configuration

Method Summary

Method Detail

eventBus

eventStore

findModules

commandBus

queryBus

queryUpdateEmitter

resourceInjector

commandGateway

eventProcessingConfiguration

queryGateway

repository

getComponent

getComponent

messageMonitor

serializer

eventSerializer

messageSerializer

start

shutdown

correlationDataProviders

parameterResolverFactory

handlerDefinition

deadlineManager

getModules

onStart

onStart

onShutdown

onShutdown

upcasterChain