org.springframework.core

Interface Ordered

All Known Subinterfaces:

AspectInstanceFactory, AspectJPrecedenceInformation, MetadataAwareAspectInstanceFactory, PriorityOrdered, SmartApplicationListener

All Known Implementing Classes:

AbstractAdvisingBeanPostProcessor, AbstractAdvisorAutoProxyCreator, AbstractAspectJAdvice, AbstractAutoProxyCreator, AbstractBeanFactoryPointcutAdvisor, AbstractGenericPointcutAdvisor, AbstractPointcutAdvisor, AnnotationAsyncExecutionInterceptor, AnnotationAwareAspectJAutoProxyCreator, AspectJAfterAdvice, AspectJAfterReturningAdvice, AspectJAfterThrowingAdvice, AspectJAroundAdvice, AspectJAwareAdvisorAutoProxyCreator, AspectJExpressionPointcutAdvisor, AspectJMethodBeforeAdvice, AspectJPointcutAdvisor, AspectJWeavingEnabler, AsyncAnnotationAdvisor, AsyncAnnotationBeanPostProcessor, AsyncExecutionInterceptor, AutowiredAnnotationBeanPostProcessor, BeanFactoryAspectInstanceFactory, BeanFactoryCacheOperationSourceAdvisor, BeanFactoryTransactionAttributeSourceAdvisor, BeanNameAutoProxyCreator, CommonAnnotationBeanPostProcessor, ConfigurationClassPostProcessor, ControllerAdviceBean, CustomAutowireConfigurer, CustomEditorConfigurer, CustomScopeConfigurer, DefaultAdvisorAutoProxyCreator, DefaultBeanFactoryPointcutAdvisor, DefaultIntroductionAdvisor, DefaultPointcutAdvisor, ExposeInvocationInterceptor, ExtendedBeanInfoFactory, GenericApplicationListenerAdapter, InfrastructureAdvisorAutoProxyCreator, InitDestroyAnnotationBeanPostProcessor, LazySingletonAspectInstanceFactoryDecorator, MethodValidationPostProcessor, NameMatchMethodPointcutAdvisor, PersistenceAnnotationBeanPostProcessor, PersistenceExceptionTranslationAdvisor, PersistenceExceptionTranslationPostProcessor, PlaceholderConfigurerSupport, PreferencesPlaceholderConfigurer, PropertyOverrideConfigurer, PropertyPlaceholderConfigurer, PropertyResourceConfigurer, PropertySourcesPlaceholderConfigurer, PrototypeAspectInstanceFactory, ReflectiveAspectJAdvisorFactory.SyntheticInstantiationAdvisor, RegexpMethodPointcutAdvisor, RequiredAnnotationBeanPostProcessor, ScheduledAnnotationBeanPostProcessor, ScriptFactoryPostProcessor, ServletContextPropertyPlaceholderConfigurer, SimpleAspectInstanceFactory, SimpleBeanFactoryAwareAspectInstanceFactory, SimpleMetadataAwareAspectInstanceFactory, SingletonAspectInstanceFactory, SingletonMetadataAwareAspectInstanceFactory, SourceFilteringListener, SpringLobCreatorSynchronization, StaticMethodMatcherPointcutAdvisor, TransactionAttributeSourceAdvisor, TransactionSynchronizationAdapter

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.

Note that there is a 'priority' marker for this interface: PriorityOrdered. Order values expressed by PriorityOrdered objects always apply before order values of 'plain' Ordered values.

Since:

07.04.2003

Author:

Juergen Hoeller

See Also:

OrderComparator, Order

Field Summary

Fields

Modifier and Type	Field and Description
static int	HIGHEST_PRECEDENCE Useful constant for the highest precedence value.
static int	LOWEST_PRECEDENCE Useful constant for the lowest precedence value.

Method Summary

Modifier and Type	Method and Description
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

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, with Integer.MAX_VALUE indicating the greatest value. Same order values will result in arbitrary positions for the affected objects.

Higher values can be interpreted as lower priority. As a consequence, the object with the lowest value has highest priority (somewhat analogous to Servlet "load-on-startup" values).

Returns:

the order value