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Ordered (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.core
Interface Ordered

All Known Subinterfaces:

AspectInstanceFactory, AspectJPrecedenceInformation, MetadataAwareAspectInstanceFactory

All Known Implementing Classes:

AbstractAdvisorAutoProxyCreator, AbstractAspectJAdvice, AbstractAutoProxyCreator, AbstractBeanFactoryPointcutAdvisor, AbstractGenericPointcutAdvisor, AbstractHandlerMapping, AbstractHandlerMapping, AbstractMapBasedHandlerMapping, AbstractPathMapHandlerMapping, AbstractPointcutAdvisor, AbstractTemplateViewResolver, AbstractUrlHandlerMapping, AnnotationAwareAspectJAutoProxyCreator, AspectJAfterAdvice, AspectJAfterReturningAdvice, AspectJAfterThrowingAdvice, AspectJAroundAdvice, AspectJAwareAdvisorAutoProxyCreator, AspectJExpressionPointcutAdvisor, AspectJMethodBeforeAdvice, AspectJPointcutAdvisor, BeanFactoryAspectInstanceFactory, BeanNameAutoProxyCreator, BeanNameUrlHandlerMapping, BeanNameViewResolver, CommonsPathMapHandlerMapping, ControllerClassNameHandlerMapping, CustomEditorConfigurer, CustomScopeConfigurer, DefaultAdvisorAutoProxyCreator, DefaultBeanFactoryPointcutAdvisor, DefaultIntroductionAdvisor, DefaultPointcutAdvisor, DynamicMethodMatcherPointcutAdvisor, FreeMarkerViewResolver, InternalResourceViewResolver, JasperReportsViewResolver, LazySingletonAspectInstanceFactoryDecorator, NameMatchMethodPointcutAdvisor, ParameterHandlerMapping, PersistenceExceptionTranslationAdvisor, PersistenceExceptionTranslationPostProcessor, PortletModeHandlerMapping, PortletModeParameterHandlerMapping, PreferencesPlaceholderConfigurer, PropertyOverrideConfigurer, PropertyPlaceholderConfigurer, PropertyResourceConfigurer, PrototypeAspectInstanceFactory, ReflectiveAspectJAdvisorFactory.SyntheticInstantiationAdvisor, RegexpMethodPointcutAdvisor, ResourceBundleViewResolver, ScriptFactoryPostProcessor, ServletContextPropertyPlaceholderConfigurer, SimpleAspectInstanceFactory, SimpleBeanFactoryAwareAspectInstanceFactory, SimpleMappingExceptionResolver, SimpleMappingExceptionResolver, SimpleMetadataAwareAspectInstanceFactory, SimpleUrlHandlerMapping, SingletonAspectInstanceFactory, SingletonMetadataAwareAspectInstanceFactory, SpringLobCreatorSynchronization, StaticMethodMatcherPointcutAdvisor, TransactionAttributeSourceAdvisor, TransactionSynchronizationAdapter, UrlBasedViewResolver, VelocityLayoutViewResolver, VelocityViewResolver, XmlViewResolver, XsltViewResolver

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public interface Ordered

Interface that can be implemented by objects that should be orderable, for example in a Collection.

The actual order can be interpreted as prioritization, with the first object (with the lowest order value) having the highest priority.

Since:

07.04.2003

Author:

Juergen Hoeller

See Also:

OrderComparator, Order

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Field Summary
static int	HIGHEST_PRECEDENCE           Useful constant for the highest precedence value.
static int	LOWEST_PRECEDENCE           Useful constant for the lowest precedence value.

 

Method Summary
int	getOrder()           Return the order value of this object, with a higher value meaning greater in terms of sorting.

 

Field Detail

HIGHEST_PRECEDENCE

static final int HIGHEST_PRECEDENCE

Useful constant for the highest precedence value.

See Also:

Integer.MIN_VALUE, Constant Field Values

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LOWEST_PRECEDENCE

static final int LOWEST_PRECEDENCE

Useful constant for the lowest precedence value.

See Also:

Integer.MAX_VALUE, Constant Field Values

Method Detail

getOrder

int getOrder()

Return the order value of this object, with a higher value meaning greater in terms of sorting.

Normally starting with 0 or 1, with LOWEST_PRECEDENCE indicating greatest. Same order values will result in arbitrary positions for the affected objects.

Higher value can be interpreted as lower priority, consequently the first object has highest priority (somewhat analogous to Servlet "load-on-startup" values).

Note that order values below 0 are reserved for framework purposes. Application-specified values should always be 0 or greater, with only framework components (internal or third-party) supposed to use lower values.

Returns:

the order value

See Also:

LOWEST_PRECEDENCE

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