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 java.lang.Object
implements MetadataAwareAspectInstanceFactory

Decorator to cause a MetadataAwareAspectInstanceFactory to instantiate only once.

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

Field Summary

private MetadataAwareAspectInstanceFactory	maaif
private java.lang.Object	materialized

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

java.lang.ClassLoader	getAspectClassLoader() Expose the aspect class loader that this factory uses.
java.lang.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()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

maaif

private final MetadataAwareAspectInstanceFactory maaif

materialized

private volatile java.lang.Object materialized

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 java.lang.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()

getAspectClassLoader

public java.lang.ClassLoader getAspectClassLoader()

Description copied from interface: AspectInstanceFactory

Expose the aspect class loader that this factory uses.

Specified by:

getAspectClassLoader in interface AspectInstanceFactory

Returns:

the aspect class loader (never null)

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, 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).

Specified by:

getOrder in interface Ordered

Returns:

the order value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object