类 ConversionServiceFactoryBean
- java.lang.Object
- org.springframework.context.support.ConversionServiceFactoryBean
- 所有已实现的接口:
FactoryBean<ConversionService>
,InitializingBean
public class ConversionServiceFactoryBean extends Object implements FactoryBean<ConversionService>, InitializingBean
A factory providing convenient access to a ConversionService configured with converters appropriate for most environments. Set the"converters"
property to supplement the default converters.This implementation creates a
DefaultConversionService
. Subclasses may overridecreateConversionService()
in order to return aGenericConversionService
instance of their choosing.Like all
FactoryBean
implementations, this class is suitable for use when configuring a Spring application context using Spring<beans>
XML. When configuring the container with@Configuration
classes, simply instantiate, configure and return the appropriateConversionService
object from a@Bean
method.- 从以下版本开始:
- 3.0
- 作者:
- Keith Donald, Juergen Hoeller, Chris Beams
构造器概要
构造器 构造器 说明 ConversionServiceFactoryBean()
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 void
afterPropertiesSet()
Invoked by the containingBeanFactory
after it has set all bean properties and satisfiedBeanFactoryAware
,ApplicationContextAware
etc.protected GenericConversionService
createConversionService()
Create the ConversionService instance returned by this factory bean.ConversionService
getObject()
Return an instance (possibly shared or independent) of the object managed by this factory.Class<? extends ConversionService>
getObjectType()
Return the type of object that this FactoryBean creates, ornull
if not known in advance.boolean
isSingleton()
Is the object managed by this factory a singleton?void
setConverters(Set<?> converters)
Configure the set of custom converter objects that should be added: implementingConverter
,ConverterFactory
, orGenericConverter
.
构造器详细资料
ConversionServiceFactoryBean
public ConversionServiceFactoryBean()
方法详细资料
setConverters
public void setConverters(Set<?> converters)
Configure the set of custom converter objects that should be added: implementingConverter
,ConverterFactory
, orGenericConverter
.
afterPropertiesSet
public void afterPropertiesSet()
从接口复制的说明:InitializingBean
Invoked by the containingBeanFactory
after it has set all bean properties and satisfiedBeanFactoryAware
,ApplicationContextAware
etc.This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.
- 指定者:
afterPropertiesSet
在接口中InitializingBean
createConversionService
protected GenericConversionService createConversionService()
Create the ConversionService instance returned by this factory bean.Creates a simple
GenericConversionService
instance by default. Subclasses may override to customize the ConversionService instance that gets created.
getObject
public ConversionService getObject()
从接口复制的说明:FactoryBean
Return an instance (possibly shared or independent) of the object managed by this factory.As with a
BeanFactory
, this allows support for both the Singleton and Prototype design pattern.If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding
FactoryBeanNotInitializedException
.As of Spring 2.0, FactoryBeans are allowed to return
null
objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.- 指定者:
getObject
在接口中FactoryBean<ConversionService>
- 返回:
- an instance of the bean (can be
null
) - 另请参阅:
FactoryBeanNotInitializedException
getObjectType
public Class<? extends ConversionService> getObjectType()
从接口复制的说明:FactoryBean
Return the type of object that this FactoryBean creates, ornull
if not known in advance.This allows one to check for specific types of beans without instantiating objects, for example on autowiring.
In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.
This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.
NOTE: Autowiring will simply ignore FactoryBeans that return
null
here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.- 指定者:
getObjectType
在接口中FactoryBean<ConversionService>
- 返回:
- the type of object that this FactoryBean creates, or
null
if not known at the time of the call - 另请参阅:
ListableBeanFactory.getBeansOfType(java.lang.Class<T>)
isSingleton
public boolean isSingleton()
从接口复制的说明:FactoryBean
Is the object managed by this factory a singleton? That is, willFactoryBean.getObject()
always return the same object (a reference that can be cached)?NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from
getObject()
might get cached by the owning BeanFactory. Hence, do not returntrue
unless the FactoryBean always exposes the same reference.The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.
NOTE: This method returning
false
does not necessarily indicate that returned objects are independent instances. An implementation of the extendedSmartFactoryBean
interface may explicitly indicate independent instances through itsSmartFactoryBean.isPrototype()
method. PlainFactoryBean
implementations which do not implement this extended interface are simply assumed to always return independent instances if theisSingleton()
implementation returnsfalse
.- 指定者:
isSingleton
在接口中FactoryBean<ConversionService>
- 返回:
- whether the exposed object is a singleton
- 另请参阅:
FactoryBean.getObject()
,SmartFactoryBean.isPrototype()