java.lang.Object
- org.springframework.context.support.ApplicationObjectSupport

所有已实现的接口:
Aware, ApplicationContextAware
直接已知子类:
AbstractHandlerMapping, WebApplicationObjectSupport
```
public abstract class ApplicationObjectSupport
extends Object
implements ApplicationContextAware
```
Convenient superclass for application objects that want to be aware of the application context, e.g. for custom lookup of collaborating beans or for context-specific resource access. It saves the application context reference and provides an initialization callback method. Furthermore, it offers numerous convenience methods for message lookup.
There is no requirement to subclass this class: It just makes things a little easier if you need access to the context, e.g. for access to file resources or to the message source. Note that many application objects do not need to be aware of the application context at all, as they can receive collaborating beans via bean references.
Many framework classes are derived from this class, particularly within the web support.
作者:
Rod Johnson, Juergen Hoeller
另请参阅:
WebApplicationObjectSupport

字段概要
字段
修饰符和类型字段说明
protected Log logger
Logger that is available to subclasses.

构造器概要
构造器
构造器说明
ApplicationObjectSupport()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`ApplicationContext`	`getApplicationContext()`	Return the ApplicationContext that this object is associated with.
`protected MessageSourceAccessor`	`getMessageSourceAccessor()`	Return a MessageSourceAccessor for the application context used by this object, for easy message access.
`protected void`	`initApplicationContext()`	Subclasses can override this for custom initialization behavior.
`protected void`	`initApplicationContext(ApplicationContext context)`	Subclasses can override this for custom initialization behavior.
`protected boolean`	`isContextRequired()`	Determine whether this application object needs to run in an ApplicationContext.
`protected ApplicationContext`	`obtainApplicationContext()`	Obtain the ApplicationContext for actual use.
`protected Class<?>`	`requiredContextClass()`	Determine the context class that any context passed to `setApplicationContext` must be an instance of.
`void`	`setApplicationContext(ApplicationContext context)`	Set the ApplicationContext that this object runs in.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - logger
```
protected final Log logger
```
    Logger that is available to subclasses.
- 构造器详细资料
  - ApplicationObjectSupport
```
public ApplicationObjectSupport()
```
- 方法详细资料
  - setApplicationContext
```
public final void setApplicationContext(@Nullable
                                        ApplicationContext context)
                                 throws BeansException
```
    从接口复制的说明: ApplicationContextAware
    Set the ApplicationContext that this object runs in. Normally this call will be used to initialize the object.
    Invoked after population of normal bean properties but before an init callback such as InitializingBean.afterPropertiesSet() or a custom init-method. Invoked after ResourceLoaderAware.setResourceLoader(org.springframework.core.io.ResourceLoader), ApplicationEventPublisherAware.setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher) and MessageSourceAware, if applicable.
    指定者:
    setApplicationContext 在接口中 ApplicationContextAware
    参数:
    context - the ApplicationContext object to be used by this object
    抛出:
    ApplicationContextException - in case of context initialization errors
    BeansException - if thrown by application context methods
    另请参阅:
    BeanInitializationException
  - isContextRequired
```
protected boolean isContextRequired()
```
    Determine whether this application object needs to run in an ApplicationContext.
    Default is "false". Can be overridden to enforce running in a context (i.e. to throw IllegalStateException on accessors if outside a context).
    另请参阅:
    getApplicationContext(), getMessageSourceAccessor()
  - requiredContextClass
```
protected Class<?> requiredContextClass()
```
    Determine the context class that any context passed to setApplicationContext must be an instance of. Can be overridden in subclasses.
    另请参阅:
    setApplicationContext(org.springframework.context.ApplicationContext)
  - initApplicationContext
```
protected void initApplicationContext(ApplicationContext context)
                               throws BeansException
```
    Subclasses can override this for custom initialization behavior. Gets called by setApplicationContext after setting the context instance.
    Note: Does not get called on re-initialization of the context but rather just on first initialization of this object's context reference.
    The default implementation calls the overloaded initApplicationContext() method without ApplicationContext reference.
    参数:
    context - the containing ApplicationContext
    抛出:
    ApplicationContextException - in case of initialization errors
    BeansException - if thrown by ApplicationContext methods
    另请参阅:
    setApplicationContext(org.springframework.context.ApplicationContext)
  - initApplicationContext
```
protected void initApplicationContext()
                               throws BeansException
```
    Subclasses can override this for custom initialization behavior.
    The default implementation is empty. Called by initApplicationContext(org.springframework.context.ApplicationContext).
    抛出:
    ApplicationContextException - in case of initialization errors
    BeansException - if thrown by ApplicationContext methods
    另请参阅:
    setApplicationContext(org.springframework.context.ApplicationContext)
  - getApplicationContext
```
@Nullable
public final ApplicationContext getApplicationContext()
                                               throws IllegalStateException
```
    Return the ApplicationContext that this object is associated with.
    抛出:
    IllegalStateException - if not running in an ApplicationContext
  - obtainApplicationContext
```
protected final ApplicationContext obtainApplicationContext()
```
    Obtain the ApplicationContext for actual use.
    返回:
    the ApplicationContext (never null)
    抛出:
    IllegalStateException - in case of no ApplicationContext set
    从以下版本开始:
    5.0
  - getMessageSourceAccessor
```
@Nullable
protected final MessageSourceAccessor getMessageSourceAccessor()
                                                        throws IllegalStateException
```
    Return a MessageSourceAccessor for the application context used by this object, for easy message access.
    抛出:
    IllegalStateException - if not running in an ApplicationContext

类 ApplicationObjectSupport

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

构造器详细资料

ApplicationObjectSupport

方法详细资料

setApplicationContext

isContextRequired

requiredContextClass

initApplicationContext

initApplicationContext

getApplicationContext

obtainApplicationContext

getMessageSourceAccessor