Package org.axonframework.messaging.core

Class EmptyApplicationContext

java.lang.Object

org.axonframework.messaging.core.EmptyApplicationContext

All Implemented Interfaces:

ApplicationContext

@Internal
public class EmptyApplicationContext
extends Object
implements ApplicationContext

An ApplicationContext implementation that does not provide any components.

It is useful as a placeholder in tests, but you should never use it if you want to be able to retrieve components from the ProcessingContext in your components.

Since:

5.0.0

Author:

Mateusz Nowak

Field Summary

Fields

Modifier and Type	Field	Description
static final EmptyApplicationContext	INSTANCE	Returns the singleton instance of the empty application context.

Method Summary

Modifier and Type	Method	Description
<C> C	component(Class<C> type, String name)	Returns the component declared under the given type and name or throws a ComponentNotFoundException if it does not exist.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.axonframework.messaging.core.ApplicationContext

component

Field Details

INSTANCE

public static final EmptyApplicationContext INSTANCE

Returns the singleton instance of the empty application context.

Method Details

component

@Nonnull
public <C> C component(@Nonnull
 Class<C> type,
 @Nullable
 String name)

Description copied from interface: ApplicationContext

Returns the component declared under the given type and name or throws a ComponentNotFoundException if it does not exist.

Specified by:

component in interface ApplicationContext

Type Parameters:

C - The type of component.

Parameters:

type - The type of component, typically the interface the component implements.

name - The name of the component to retrieve. Use null when there is no name or use ApplicationContext.component(Class) instead.

Returns:

The component registered for the given type and name.