org.springframework.aop.support
Class DefaultIntroductionAdvisor

java.lang.Object
  extended by org.springframework.aop.support.DefaultIntroductionAdvisor
All Implemented Interfaces:
java.io.Serializable, Advisor, ClassFilter, IntroductionAdvisor, IntroductionInfo, Ordered

public class DefaultIntroductionAdvisor
extends java.lang.Object
implements IntroductionAdvisor, ClassFilter, Ordered, java.io.Serializable

Simple IntroductionAdvisor implementation that by default applies to any class.

Since:
11.11.2003
Author:
Rod Johnson, Juergen Hoeller
See Also:
Serialized Form

Field Summary
 
Fields inherited from interface org.springframework.aop.ClassFilter
TRUE
 
Fields inherited from interface org.springframework.core.Ordered
HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE
 
Constructor Summary
DefaultIntroductionAdvisor(org.aopalliance.aop.Advice advice)
          Create a DefaultIntroductionAdvisor for the given advice.
DefaultIntroductionAdvisor(org.aopalliance.aop.Advice advice, IntroductionInfo introductionInfo)
          Create a DefaultIntroductionAdvisor for the given advice.
DefaultIntroductionAdvisor(DynamicIntroductionAdvice advice, java.lang.Class intf)
          Create a DefaultIntroductionAdvisor for the given advice.
 
Method Summary
 void addInterface(java.lang.Class intf)
          Add the specified interface to the list of interfaces to introduce.
 boolean equals(java.lang.Object other)
           
 org.aopalliance.aop.Advice getAdvice()
          Return the advice part of this aspect.
 ClassFilter getClassFilter()
          Return the filter determining which target classes this introduction should apply to.
 java.lang.Class[] getInterfaces()
          Return the additional interfaces introduced by this Advisor or Advice.
 int getOrder()
          Return the order value of this object, with a higher value meaning greater in terms of sorting.
 int hashCode()
           
 boolean isPerInstance()
          Return whether this advice is associated with a particular instance (for example, creating a mixin) or shared with all instances of the advised class obtained from the same Spring bean factory.
 boolean matches(java.lang.Class clazz)
          Should the pointcut apply to the given interface or target class?
 void setOrder(int order)
           
 java.lang.String toString()
           
 void validateInterfaces()
          Can the advised interfaces be implemented by the introduction advice? Invoked before adding an IntroductionAdvisor.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

DefaultIntroductionAdvisor

public DefaultIntroductionAdvisor(org.aopalliance.aop.Advice advice)
Create a DefaultIntroductionAdvisor for the given advice.

Parameters:
advice - the Advice to apply (may implement the IntroductionInfo interface)
See Also:
addInterface(java.lang.Class)

DefaultIntroductionAdvisor

public DefaultIntroductionAdvisor(org.aopalliance.aop.Advice advice,
                                  IntroductionInfo introductionInfo)
Create a DefaultIntroductionAdvisor for the given advice.

Parameters:
advice - the Advice to apply
introductionInfo - the IntroductionInfo that describes the interface to introduce (may be null)

DefaultIntroductionAdvisor

public DefaultIntroductionAdvisor(DynamicIntroductionAdvice advice,
                                  java.lang.Class intf)
Create a DefaultIntroductionAdvisor for the given advice.

Parameters:
advice - the Advice to apply
intf - the interface to introduce
Method Detail

addInterface

public void addInterface(java.lang.Class intf)
Add the specified interface to the list of interfaces to introduce.

Parameters:
intf - the interface to introduce

getInterfaces

public java.lang.Class[] getInterfaces()
Description copied from interface: IntroductionInfo
Return the additional interfaces introduced by this Advisor or Advice.

Specified by:
getInterfaces in interface IntroductionInfo
Returns:
the introduced interfaces

validateInterfaces

public void validateInterfaces()
                        throws java.lang.IllegalArgumentException
Description copied from interface: IntroductionAdvisor
Can the advised interfaces be implemented by the introduction advice? Invoked before adding an IntroductionAdvisor.

Specified by:
validateInterfaces in interface IntroductionAdvisor
Throws:
java.lang.IllegalArgumentException - if the advised interfaces can't be implemented by the introduction advice

setOrder

public void setOrder(int order)

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

getAdvice

public org.aopalliance.aop.Advice getAdvice()
Description copied from interface: Advisor
Return the advice part of this aspect. An advice may be an interceptor, a before advice, a throws advice, etc.

Specified by:
getAdvice in interface Advisor
Returns:
the advice that should apply if the pointcut matches
See Also:
MethodInterceptor, BeforeAdvice, ThrowsAdvice, AfterReturningAdvice

isPerInstance

public boolean isPerInstance()
Description copied from interface: Advisor
Return whether this advice is associated with a particular instance (for example, creating a mixin) or shared with all instances of the advised class obtained from the same Spring bean factory.

Note that this method is not currently used by the framework. Typical Advisor implementations always return true. Use singleton/prototype bean definitions or appropriate programmatic proxy creation to ensure that Advisors have the correct lifecycle model.

Specified by:
isPerInstance in interface Advisor
Returns:
whether this advice is associated with a particular target instance

getClassFilter

public ClassFilter getClassFilter()
Description copied from interface: IntroductionAdvisor
Return the filter determining which target classes this introduction should apply to.

This represents the class part of a pointcut. Note that method matching doesn't make sense to introductions.

Specified by:
getClassFilter in interface IntroductionAdvisor
Returns:
the class filter

matches

public boolean matches(java.lang.Class clazz)
Description copied from interface: ClassFilter
Should the pointcut apply to the given interface or target class?

Specified by:
matches in interface ClassFilter
Parameters:
clazz - the candidate target class
Returns:
whether the advice should apply to the given target class

equals

public boolean equals(java.lang.Object other)
Overrides:
equals in class java.lang.Object

hashCode

public int hashCode()
Overrides:
hashCode in class java.lang.Object

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object