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

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org.springframework.aop.aspectj.annotation
Class LazySingletonAspectInstanceFactoryDecorator

java.lang.Object
  org.springframework.aop.aspectj.annotation.LazySingletonAspectInstanceFactoryDecorator

All Implemented Interfaces:: MetadataAwareAspectInstanceFactory, AspectInstanceFactory, Ordered

public class LazySingletonAspectInstanceFactoryDecorator
extends Object
implements MetadataAwareAspectInstanceFactory
extends Object
implements MetadataAwareAspectInstanceFactory

Decorator to cause a MetadataAwareAspectInstanceFactory to instantiate only once.

Since:: 2.0
Author:: Rod Johnson, Juergen Hoeller

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

LazySingletonAspectInstanceFactoryDecorator(MetadataAwareAspectInstanceFactory maaif)
          Create a new lazily initializing decorator for the given AspectInstanceFactory.

Method Summary

Object getAspectInstance()
          Create an instance of this factory's aspect.

AspectMetadata getAspectMetadata()
          Return the AspectJ AspectMetadata for this factory's aspect.

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

boolean isMaterialized()


String toString()


Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Fields inherited from interface org.springframework.core.Ordered
`HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE`

Constructor Summary
`LazySingletonAspectInstanceFactoryDecorator(MetadataAwareAspectInstanceFactory maaif)` Create a new lazily initializing decorator for the given AspectInstanceFactory.

Method Summary
`Object`	`getAspectInstance()` Create an instance of this factory's aspect.
`AspectMetadata`	`getAspectMetadata()` Return the AspectJ AspectMetadata for this factory's aspect.
`int`	`getOrder()` Return the order value of this object, with a higher value meaning greater in terms of sorting.
`boolean`	`isMaterialized()`
`String`	`toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

LazySingletonAspectInstanceFactoryDecorator

public LazySingletonAspectInstanceFactoryDecorator(MetadataAwareAspectInstanceFactory maaif)

Create a new lazily initializing decorator for the given AspectInstanceFactory.

Parameters:: maaif - the MetadataAwareAspectInstanceFactory to decorate

Method Detail

getAspectInstance

public Object getAspectInstance()

Description copied from interface: AspectInstanceFactory

Create an instance of this factory's aspect.

Specified by:: getAspectInstance in interface AspectInstanceFactory

Returns:: the aspect instance (never null)

isMaterialized

public boolean isMaterialized()

getAspectMetadata

public AspectMetadata getAspectMetadata()

Description copied from interface: MetadataAwareAspectInstanceFactory

Return the AspectJ AspectMetadata for this factory's aspect.

Specified by:: getAspectMetadata in interface MetadataAwareAspectInstanceFactory

Returns:: the aspect metadata

getOrder

public int getOrder()

Description copied from interface: Ordered

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

Normally starting with 0 or 1, with Ordered.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.

Specified by:: getOrder in interface Ordered

Returns:: the order value
See Also:: Ordered.LOWEST_PRECEDENCE

toString

public String toString()

Overrides:: toString in class Object