org.springframework.aop.aspectj.annotation

Class LazySingletonAspectInstanceFactoryDecorator

java.lang.Object

org.springframework.aop.aspectj.annotation.LazySingletonAspectInstanceFactoryDecorator

All Implemented Interfaces:

Serializable, MetadataAwareAspectInstanceFactory, AspectInstanceFactory, Ordered

public class LazySingletonAspectInstanceFactoryDecorator
extends Object
implements MetadataAwareAspectInstanceFactory, Serializable

Decorator to cause a MetadataAwareAspectInstanceFactory to instantiate only once.

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
ClassLoader	getAspectClassLoader() Expose the aspect class loader that this factory uses.
Object	getAspectCreationMutex() Return the best possible creation mutex for this factory.
Object	getAspectInstance() Create an instance of this factory's aspect.
AspectMetadata	getAspectMetadata() Return the AspectJ AspectMetadata for this factory's aspect.
int	getOrder() Get the order value of this object.
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()

getAspectClassLoader

@Nullable
public 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 (or null for the bootstrap loader)

See Also:

ClassUtils.getDefaultClassLoader()

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

getAspectCreationMutex

@Nullable
public Object getAspectCreationMutex()

Description copied from interface: MetadataAwareAspectInstanceFactory

Return the best possible creation mutex for this factory.

Specified by:

getAspectCreationMutex in interface MetadataAwareAspectInstanceFactory

Returns:

the mutex object (may be null for no mutex to use)

getOrder

public int getOrder()

Description copied from interface: Ordered

Get the order value of this object.

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

Same order values will result in arbitrary sort positions for the affected objects.

Specified by:

getOrder in interface Ordered

Returns:

the order value

See Also:

Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

toString

public String toString()

Overrides:

toString in class Object