Uses of Interface
org.springframework.context.ApplicationContextAware

Packages that use ApplicationContextAware

Package	Description
org.springframework.context.event	Support classes for application events, like standard context events.
org.springframework.context.support	Classes supporting the org.springframework.context package, such as abstract base classes for ApplicationContext implementations and a MessageSource implementation.
org.springframework.http.converter.json	Provides HttpMessageConverter implementations for handling JSON.
org.springframework.jms.config	Support package for declarative messaging configuration, with Java configuration and XML schema support.
org.springframework.messaging.handler.annotation.reactive	Support classes for working with annotated message-handling methods with non-blocking, reactive contracts.
org.springframework.messaging.handler.invocation.reactive	Common infrastructure for invoking message handler methods with non-blocking, and reactive contracts.
org.springframework.messaging.rsocket.annotation.support	Support classes for working with annotated RSocket stream handling methods.
org.springframework.messaging.simp.annotation.support	Support classes for handling messages from simple messaging protocols (like STOMP).
org.springframework.messaging.simp.config	Configuration support for WebSocket messaging using higher level messaging protocols.
org.springframework.scheduling.annotation	Java 5 annotation for asynchronous method execution.
org.springframework.scheduling.quartz	Support classes for the open source scheduler Quartz, allowing to set up Quartz Schedulers, JobDetails and Triggers as beans in a Spring context.
org.springframework.test.context.junit4	Support classes for integrating the Spring TestContext Framework with JUnit 4.12 or higher.
org.springframework.test.context.testng	Support classes for integrating the Spring TestContext Framework with TestNG.
org.springframework.validation.beanvalidation	Support classes for integrating a JSR-303 Bean Validation provider (such as Hibernate Validator) into a Spring ApplicationContext and in particular with Spring's data binding and validation APIs.
org.springframework.web.context.support	Classes supporting the org.springframework.web.context package, such as WebApplicationContext implementations and various utility classes.
org.springframework.web.reactive	Top-level package for the spring-webflux module that contains DispatcherHandler, the main entry point for WebFlux server endpoint processing including key contracts used to map requests to handlers, invoke them, and process the result.
org.springframework.web.reactive.config	Spring WebFlux configuration infrastructure.
org.springframework.web.reactive.function.server.support	Classes supporting the org.springframework.web.reactive.function.server package.
org.springframework.web.reactive.handler	Provides HandlerMapping implementations including abstract base classes.
org.springframework.web.reactive.resource	Support classes for serving static resources.
org.springframework.web.reactive.result.method	Infrastructure for handler method processing.
org.springframework.web.reactive.result.method.annotation	Infrastructure for annotation-based handler method processing.
org.springframework.web.reactive.result.view	Support for result handling through view resolution.
org.springframework.web.reactive.result.view.freemarker	Support classes for the integration of FreeMarker as Spring web view technology.
org.springframework.web.reactive.result.view.script	Support classes for views based on the JSR-223 script engine abstraction (as included in Java 6+), e.g.
org.springframework.web.servlet	Provides servlets that integrate with the application context infrastructure, and the core interfaces and classes for the Spring web MVC framework.
org.springframework.web.servlet.config.annotation	Annotation-based setup for Spring MVC.
org.springframework.web.servlet.handler	Provides standard HandlerMapping implementations, including abstract base classes for custom implementations.
org.springframework.web.servlet.mvc	Standard controller implementations for the Servlet MVC framework that comes with Spring.
org.springframework.web.servlet.mvc.method	Servlet-based infrastructure for handler method processing, building on the org.springframework.web.method package.
org.springframework.web.servlet.mvc.method.annotation	MVC infrastructure for annotation-based handler method processing, building on the org.springframework.web.method.annotation package.
org.springframework.web.servlet.resource	Support classes for serving static resources.
org.springframework.web.servlet.support	Support classes for Spring's web MVC framework.
org.springframework.web.servlet.view	Provides standard View and ViewResolver implementations, including abstract base classes for custom implementations.
org.springframework.web.servlet.view.document	Support classes for document generation, providing View implementations for PDF and Excel.
org.springframework.web.servlet.view.feed	Support classes for feed generation, providing View implementations for Atom and RSS.
org.springframework.web.servlet.view.groovy	Support classes for the integration of Groovy Templates as Spring web view technology.
org.springframework.web.servlet.view.json	Support classes for providing a View implementation based on JSON serialization.
org.springframework.web.servlet.view.tiles3	Support classes for the integration of Tiles 3 (the standalone version of Tiles) as Spring web view technology.
org.springframework.web.servlet.view.xml	Support classes for providing a View implementation based on XML Marshalling.
org.springframework.web.servlet.view.xslt	Support classes for XSLT, providing a View implementation for XSLT stylesheets.
org.springframework.web.socket.config.annotation	Support for annotation-based WebSocket setup in configuration classes.
org.springframework.web.socket.messaging	WebSocket integration for Spring's messaging module.
org.springframework.web.socket.server.standard	Server-side classes for use with standard JSR-356 WebSocket endpoints.
org.springframework.web.socket.server.support	Server-side support classes including container-specific strategies for upgrading a request.

Uses of ApplicationContextAware in org.springframework.context.event

Classes in org.springframework.context.event that implement ApplicationContextAware

Modifier and Type	Class and Description
class	EventListenerMethodProcessor Registers EventListener methods as individual ApplicationListener instances.

Uses of ApplicationContextAware in org.springframework.context.support

Classes in org.springframework.context.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ApplicationObjectSupport Convenient superclass for application objects that want to be aware of the application context, e.g.
class	LiveBeansView Adapter for live beans view exposure, building a snapshot of current beans and their dependencies from either a local ApplicationContext (with a local LiveBeansView bean definition) or all registered ApplicationContexts (driven by the "spring.liveBeansView.mbeanDomain" environment property).

Uses of ApplicationContextAware in org.springframework.http.converter.json

Classes in org.springframework.http.converter.json that implement ApplicationContextAware

Modifier and Type	Class and Description
class	Jackson2ObjectMapperFactoryBean A FactoryBean for creating a Jackson 2.x ObjectMapper (default) or XmlMapper (createXmlMapper property set to true) with setters to enable or disable Jackson features from within XML configuration.

Uses of ApplicationContextAware in org.springframework.jms.config

Classes in org.springframework.jms.config that implement ApplicationContextAware

Modifier and Type	Class and Description
class	JmsListenerEndpointRegistry Creates the necessary MessageListenerContainer instances for the registered endpoints.

Uses of ApplicationContextAware in org.springframework.messaging.handler.annotation.reactive

Classes in org.springframework.messaging.handler.annotation.reactive that implement ApplicationContextAware

Modifier and Type	Class and Description
class	MessageMappingMessageHandler Extension of AbstractMethodMessageHandler for reactive, non-blocking handling of messages via @MessageMapping methods.

Uses of ApplicationContextAware in org.springframework.messaging.handler.invocation.reactive

Classes in org.springframework.messaging.handler.invocation.reactive that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractMethodMessageHandler<T> Abstract base class for reactive HandlerMethod-based message handling.

Uses of ApplicationContextAware in org.springframework.messaging.rsocket.annotation.support

Classes in org.springframework.messaging.rsocket.annotation.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	RSocketMessageHandler Extension of MessageMappingMessageHandler for handling RSocket requests with @ConnectMapping and @MessageMapping methods.

Uses of ApplicationContextAware in org.springframework.messaging.simp.annotation.support

Classes in org.springframework.messaging.simp.annotation.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	SimpAnnotationMethodMessageHandler A handler for messages delegating to @MessageMapping and @SubscribeMapping annotated methods.

Uses of ApplicationContextAware in org.springframework.messaging.simp.config

Classes in org.springframework.messaging.simp.config that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractMessageBrokerConfiguration Provides essential configuration for handling messages with simple messaging protocols such as STOMP.

Uses of ApplicationContextAware in org.springframework.scheduling.annotation

Classes in org.springframework.scheduling.annotation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ScheduledAnnotationBeanPostProcessor Bean post-processor that registers methods annotated with @Scheduled to be invoked by a TaskScheduler according to the "fixedRate", "fixedDelay", or "cron" expression provided via the annotation.

Uses of ApplicationContextAware in org.springframework.scheduling.quartz

Classes in org.springframework.scheduling.quartz that implement ApplicationContextAware

Modifier and Type	Class and Description
class	JobDetailFactoryBean A Spring FactoryBean for creating a Quartz JobDetail instance, supporting bean-style usage for JobDetail configuration.
class	SchedulerFactoryBean FactoryBean that creates and configures a Quartz Scheduler, manages its lifecycle as part of the Spring application context, and exposes the Scheduler as bean reference for dependency injection.
class	SpringBeanJobFactory Subclass of AdaptableJobFactory that also supports Spring-style dependency injection on bean properties.

Uses of ApplicationContextAware in org.springframework.test.context.junit4

Classes in org.springframework.test.context.junit4 that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractJUnit4SpringContextTests Abstract base test class which integrates the Spring TestContext Framework with explicit ApplicationContext testing support in a JUnit 4 environment.
class	AbstractTransactionalJUnit4SpringContextTests Abstract transactional extension of AbstractJUnit4SpringContextTests which adds convenience functionality for JDBC access.

Uses of ApplicationContextAware in org.springframework.test.context.testng

Classes in org.springframework.test.context.testng that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractTestNGSpringContextTests Abstract base test class which integrates the Spring TestContext Framework with explicit ApplicationContext testing support in a TestNG environment.
class	AbstractTransactionalTestNGSpringContextTests Abstract transactional extension of AbstractTestNGSpringContextTests which adds convenience functionality for JDBC access.

Uses of ApplicationContextAware in org.springframework.validation.beanvalidation

Classes in org.springframework.validation.beanvalidation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	LocalValidatorFactoryBean This is the central class for javax.validation (JSR-303) setup in a Spring application context: It bootstraps a javax.validation.ValidationFactory and exposes it through the Spring Validator interface as well as through the JSR-303 Validator interface and the ValidatorFactory interface itself.
class	OptionalValidatorFactoryBean LocalValidatorFactoryBean subclass that simply turns Validator calls into no-ops in case of no Bean Validation provider being available.

Uses of ApplicationContextAware in org.springframework.web.context.support

Classes in org.springframework.web.context.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ServletContextLiveBeansView LiveBeansView subclass which looks for all ApplicationContexts in the web application, as exposed in ServletContext attributes.
class	WebApplicationObjectSupport Convenient superclass for application objects running in a WebApplicationContext.

Uses of ApplicationContextAware in org.springframework.web.reactive

Classes in org.springframework.web.reactive that implement ApplicationContextAware

Modifier and Type	Class and Description
class	DispatcherHandler Central dispatcher for HTTP request handlers/controllers.

Uses of ApplicationContextAware in org.springframework.web.reactive.config

Classes in org.springframework.web.reactive.config that implement ApplicationContextAware

Modifier and Type	Class and Description
class	DelegatingWebFluxConfiguration A subclass of WebFluxConfigurationSupport that detects and delegates to all beans of type WebFluxConfigurer allowing them to customize the configuration provided by WebFluxConfigurationSupport.
class	WebFluxConfigurationSupport The main class for Spring WebFlux configuration.

Uses of ApplicationContextAware in org.springframework.web.reactive.function.server.support

Classes in org.springframework.web.reactive.function.server.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	RouterFunctionMapping HandlerMapping implementation that supports RouterFunctions.

Uses of ApplicationContextAware in org.springframework.web.reactive.handler

Classes in org.springframework.web.reactive.handler that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractHandlerMapping Abstract base class for HandlerMapping implementations.
class	AbstractUrlHandlerMapping Abstract base class for URL-mapped HandlerMapping implementations.
class	SimpleUrlHandlerMapping Implementation of the HandlerMapping interface to map from URLs to request handler beans.

Uses of ApplicationContextAware in org.springframework.web.reactive.resource

Classes in org.springframework.web.reactive.resource that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ResourceUrlProvider A central component to use to obtain the public URL path that clients should use to access a static resource.

Uses of ApplicationContextAware in org.springframework.web.reactive.result.method

Classes in org.springframework.web.reactive.result.method that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractHandlerMethodMapping<T> Abstract base class for HandlerMapping implementations that define a mapping between a request and a HandlerMethod.
class	RequestMappingInfoHandlerMapping Abstract base class for classes for which RequestMappingInfo defines the mapping between a request and a handler method.

Uses of ApplicationContextAware in org.springframework.web.reactive.result.method.annotation

Classes in org.springframework.web.reactive.result.method.annotation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	RequestMappingHandlerAdapter Supports the invocation of @RequestMapping handler methods.
class	RequestMappingHandlerMapping An extension of RequestMappingInfoHandlerMapping that creates RequestMappingInfo instances from class-level and method-level @RequestMapping annotations.

Uses of ApplicationContextAware in org.springframework.web.reactive.result.view

Classes in org.springframework.web.reactive.result.view that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractUrlBasedView Abstract base class for URL-based views.
class	AbstractView Base class for View implementations.
class	RedirectView View that redirects to an absolute or context relative URL.
class	UrlBasedViewResolver A ViewResolver that allows direct resolution of symbolic view names to URLs without explicit mapping definitions.

Uses of ApplicationContextAware in org.springframework.web.reactive.result.view.freemarker

Classes in org.springframework.web.reactive.result.view.freemarker that implement ApplicationContextAware

Modifier and Type	Class and Description
class	FreeMarkerView A View implementation that uses the FreeMarker template engine.
class	FreeMarkerViewResolver A ViewResolver for resolving FreeMarkerView instances, i.e.

Uses of ApplicationContextAware in org.springframework.web.reactive.result.view.script

Classes in org.springframework.web.reactive.result.view.script that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ScriptTemplateView An AbstractUrlBasedView subclass designed to run any template library based on a JSR-223 script engine.
class	ScriptTemplateViewResolver Convenience subclass of UrlBasedViewResolver that supports ScriptTemplateView and custom subclasses of it.

Uses of ApplicationContextAware in org.springframework.web.servlet

Classes in org.springframework.web.servlet that implement ApplicationContextAware

Modifier and Type	Class and Description
class	DispatcherServlet Central dispatcher for HTTP request handlers/controllers, e.g.
class	FrameworkServlet Base servlet for Spring's web framework.

Uses of ApplicationContextAware in org.springframework.web.servlet.config.annotation

Classes in org.springframework.web.servlet.config.annotation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	DelegatingWebMvcConfiguration A subclass of WebMvcConfigurationSupport that detects and delegates to all beans of type WebMvcConfigurer allowing them to customize the configuration provided by WebMvcConfigurationSupport.
class	WebMvcConfigurationSupport This is the main class providing the configuration behind the MVC Java config.

Uses of ApplicationContextAware in org.springframework.web.servlet.handler

Classes in org.springframework.web.servlet.handler that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractDetectingUrlHandlerMapping Abstract implementation of the HandlerMapping interface, detecting URL mappings for handler beans through introspection of all defined beans in the application context.
class	BeanNameUrlHandlerMapping Implementation of the HandlerMapping interface that maps from URLs to beans with names that start with a slash ("/"), similar to how Struts maps URLs to action names.
class	HandlerMappingIntrospector Helper class to get information from the HandlerMapping that would serve a specific request.

Uses of ApplicationContextAware in org.springframework.web.servlet.mvc

Classes in org.springframework.web.servlet.mvc that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractController Convenient superclass for controller implementations, using the Template Method design pattern.
class	AbstractUrlViewController Abstract base class for Controllers that return a view name based on the request URL.
class	ParameterizableViewController Trivial controller that always returns a pre-configured view and optionally sets the response status code.
class	ServletForwardingController Spring Controller implementation that forwards to a named servlet, i.e.
class	ServletWrappingController Spring Controller implementation that wraps a servlet instance which it manages internally.
class	UrlFilenameViewController Simple Controller implementation that transforms the virtual path of a URL into a view name and returns that view.
class	WebContentInterceptor Handler interceptor that checks the request and prepares the response.

Uses of ApplicationContextAware in org.springframework.web.servlet.mvc.method

Classes in org.springframework.web.servlet.mvc.method that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractHandlerMethodAdapter Abstract base class for HandlerAdapter implementations that support handlers of type HandlerMethod.

Uses of ApplicationContextAware in org.springframework.web.servlet.mvc.method.annotation

Classes in org.springframework.web.servlet.mvc.method.annotation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ExceptionHandlerExceptionResolver An AbstractHandlerMethodExceptionResolver that resolves exceptions through @ExceptionHandler methods.

Uses of ApplicationContextAware in org.springframework.web.servlet.resource

Classes in org.springframework.web.servlet.resource that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ResourceHttpRequestHandler HttpRequestHandler that serves static resources in an optimized way according to the guidelines of Page Speed, YSlow, etc.

Uses of ApplicationContextAware in org.springframework.web.servlet.support

Classes in org.springframework.web.servlet.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	WebContentGenerator Convenient superclass for any kind of web content generator, like AbstractController and WebContentInterceptor.

Uses of ApplicationContextAware in org.springframework.web.servlet.view

Classes in org.springframework.web.servlet.view that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractCachingViewResolver Convenient base class for ViewResolver implementations.
class	AbstractTemplateView Adapter base class for template-based view technologies such as FreeMarker, with the ability to use request and session attributes in their model and the option to expose helper objects for Spring's FreeMarker macro library.
class	AbstractTemplateViewResolver Abstract base class for template view resolvers, in particular for FreeMarker views.
class	BeanNameViewResolver A simple implementation of ViewResolver that interprets a view name as a bean name in the current application context, i.e.
class	ContentNegotiatingViewResolver Implementation of ViewResolver that resolves a view based on the request file name or Accept header.
class	InternalResourceView Wrapper for a JSP or other resource within the same web application.
class	InternalResourceViewResolver Convenient subclass of UrlBasedViewResolver that supports InternalResourceView (i.e.
class	JstlView Specialization of InternalResourceView for JSTL pages, i.e.
class	ResourceBundleViewResolver A ViewResolver implementation that uses bean definitions in a ResourceBundle, specified by the bundle basename.
class	ViewResolverComposite A ViewResolver that delegates to others.
class	XmlViewResolver A ViewResolver implementation that uses bean definitions in a dedicated XML file for view definitions, specified by resource location.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.document

Classes in org.springframework.web.servlet.view.document that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractPdfStamperView Abstract superclass for PDF views that operate on an existing document with an AcroForm.
class	AbstractPdfView Abstract superclass for PDF views.
class	AbstractXlsView Convenient superclass for Excel document views in traditional XLS format.
class	AbstractXlsxStreamingView Convenient superclass for Excel document views in the Office 2007 XLSX format, using POI's streaming variant.
class	AbstractXlsxView Convenient superclass for Excel document views in the Office 2007 XLSX format (as supported by POI-OOXML).

Uses of ApplicationContextAware in org.springframework.web.servlet.view.feed

Classes in org.springframework.web.servlet.view.feed that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractAtomFeedView Abstract superclass for Atom Feed views, using the ROME package.
class	AbstractFeedView<T extends com.rometools.rome.feed.WireFeed> Abstract base class for Atom and RSS Feed views, using the ROME package.
class	AbstractRssFeedView Abstract superclass for RSS Feed views, using the ROME package.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.groovy

Classes in org.springframework.web.servlet.view.groovy that implement ApplicationContextAware

Modifier and Type	Class and Description
class	GroovyMarkupConfigurer An extension of Groovy's TemplateConfiguration and an implementation of Spring MVC's GroovyMarkupConfig for creating a MarkupTemplateEngine for use in a web application.
class	GroovyMarkupView An AbstractTemplateView subclass based on Groovy XML/XHTML markup templates.
class	GroovyMarkupViewResolver Convenience subclass of @link AbstractTemplateViewResolver} that supports GroovyMarkupView (i.e.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.json

Classes in org.springframework.web.servlet.view.json that implement ApplicationContextAware

Modifier and Type	Class and Description
class	AbstractJackson2View Abstract base class for Jackson based and content type independent AbstractView implementations.
class	MappingJackson2JsonView Spring MVC View that renders JSON content by serializing the model for the current request using Jackson 2's ObjectMapper.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.tiles3

Classes in org.springframework.web.servlet.view.tiles3 that implement ApplicationContextAware

Modifier and Type	Class and Description
class	TilesView View implementation that renders through the Tiles Request API.
class	TilesViewResolver Convenience subclass of UrlBasedViewResolver that supports TilesView (i.e.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.xml

Classes in org.springframework.web.servlet.view.xml that implement ApplicationContextAware

Modifier and Type	Class and Description
class	MappingJackson2XmlView Spring MVC View that renders XML content by serializing the model for the current request using Jackson 2's XmlMapper.
class	MarshallingView Spring-MVC View that allows for response context to be rendered as the result of marshalling by a Marshaller.

Uses of ApplicationContextAware in org.springframework.web.servlet.view.xslt

Classes in org.springframework.web.servlet.view.xslt that implement ApplicationContextAware

Modifier and Type	Class and Description
class	XsltView XSLT-driven View that allows for response context to be rendered as the result of an XSLT transformation.
class	XsltViewResolver ViewResolver implementation that resolves instances of XsltView by translating the supplied view name into the URL of the XSLT stylesheet.

Uses of ApplicationContextAware in org.springframework.web.socket.config.annotation

Classes in org.springframework.web.socket.config.annotation that implement ApplicationContextAware

Modifier and Type	Class and Description
class	DelegatingWebSocketMessageBrokerConfiguration A WebSocketMessageBrokerConfigurationSupport extension that detects beans of type WebSocketMessageBrokerConfigurer and delegates to all of them allowing callback style customization of the configuration provided in WebSocketMessageBrokerConfigurationSupport.
class	WebSocketMessageBrokerConfigurationSupport Extends AbstractMessageBrokerConfiguration and adds configuration for receiving and responding to STOMP messages from WebSocket clients.

Uses of ApplicationContextAware in org.springframework.web.socket.messaging

Classes in org.springframework.web.socket.messaging that implement ApplicationContextAware

Modifier and Type	Class and Description
class	WebSocketAnnotationMethodMessageHandler A sub-class of SimpAnnotationMethodMessageHandler to provide support for ControllerAdvice with global @MessageExceptionHandler methods.

Uses of ApplicationContextAware in org.springframework.web.socket.server.standard

Classes in org.springframework.web.socket.server.standard that implement ApplicationContextAware

Modifier and Type	Class and Description
class	ServerEndpointExporter Detects beans of type ServerEndpointConfig and registers with the standard Java WebSocket runtime.

Uses of ApplicationContextAware in org.springframework.web.socket.server.support

Classes in org.springframework.web.socket.server.support that implement ApplicationContextAware

Modifier and Type	Class and Description
class	WebSocketHandlerMapping An extension of SimpleUrlHandlerMapping that is also a SmartLifecycle container and propagates start and stop calls to any handlers that implement Lifecycle.