Spring Framework

org.springframework.aop.aspectj
Class SingletonAspectInstanceFactory

java.lang.Object
  extended by org.springframework.aop.aspectj.SingletonAspectInstanceFactory
All Implemented Interfaces:
AspectInstanceFactory, Ordered
Direct Known Subclasses:
SingletonMetadataAwareAspectInstanceFactory

public class SingletonAspectInstanceFactory
extends java.lang.Object
implements AspectInstanceFactory

Implementation of AspectInstanceFactory that is backed by a specified singleton object, returning the same instance for every getAspectInstance() call.

Since:
2.0
Author:
Rod Johnson, Juergen Hoeller
See Also:
SimpleAspectInstanceFactory

Field Summary
 
Fields inherited from interface org.springframework.core.Ordered
HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE
 
Constructor Summary
SingletonAspectInstanceFactory(java.lang.Object aspectInstance)
          Create a new SingletonAspectInstanceFactory for the given aspect instance.
 
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.
 int getOrder()
          Determine the order for this factory's aspect instance, either an instance-specific order expressed through implementing the Ordered interface, or a fallback order.
protected  int getOrderForAspectClass(java.lang.Class<?> aspectClass)
          Determine a fallback order for the case that the aspect instance does not express an instance-specific order through implementing the Ordered interface.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SingletonAspectInstanceFactory

public SingletonAspectInstanceFactory(java.lang.Object aspectInstance)
Create a new SingletonAspectInstanceFactory for the given aspect instance.

Parameters:
aspectInstance - the singleton aspect instance
Method Detail

getAspectInstance

public final 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)

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)

getOrder

public int getOrder()
Determine the order for this factory's aspect instance, either an instance-specific order expressed through implementing the Ordered interface, or a fallback order.

Specified by:
getOrder in interface Ordered
Returns:
the order value
See Also:
Ordered, getOrderForAspectClass(java.lang.Class)

getOrderForAspectClass

protected int getOrderForAspectClass(java.lang.Class<?> aspectClass)
Determine a fallback order for the case that the aspect instance does not express an instance-specific order through implementing the Ordered interface.

The default implementation simply returns Ordered.LOWEST_PRECEDENCE.

Parameters:
aspectClass - the aspect class

Spring Framework