Advisors are identified by a list of bean
names in the current bean factory, specified through the "interceptorNames" property.
The last entry in the list can be the name of a target bean or a
TargetSource; however, it is normally preferable
to use the "targetName"/"target"/"targetSource" properties instead.
Global interceptors and advisors can be added at the factory level. The specified
ones are expanded in an interceptor list where an "xxx*" entry is included in the
list, matching the given prefix with the bean names (e.g. "global*" would match
both "globalBean1" and "globalBean2", "*" all defined interceptors). The matching
interceptors get applied according to their returned order value, if they implement
the Ordered interface.
Creates a JDK proxy when proxy interfaces are given, and a CGLIB proxy for the
actual target class if not. Note that the latter will only work if the target class
does not have final methods, as a dynamic subclass will be created at runtime.
It's possible to cast a proxy obtained from this factory to Advised,
or to obtain the ProxyFactoryBean reference and programmatically manipulate it.
This won't work for existing prototype references, which are independent. However,
it will work for prototypes subsequently obtained from the factory. Changes to
interception will work immediately on singletons (including existing references).
However, to change interfaces or target it's necessary to obtain a new instance
from the factory. This means that singleton instances obtained from the factory
do not have the same object identity. However, they do have the same interceptors
and target, and changing any reference will change all objects.
public void setInterceptorNames(java.lang.String... interceptorNames)
Set the list of Advice/Advisor bean names. This must always be set
to use this factory bean in a bean factory.
The referenced beans should be of type Interceptor, Advisor or Advice
The last entry in the list can be the name of any bean in the factory.
If it's neither an Advice nor an Advisor, a new SingletonTargetSource
is added to wrap it. Such a target bean cannot be used if the "target"
or "targetSource" or "targetName" property is set, in which case the
"interceptorNames" array must contain only Advice/Advisor bean names.
NOTE: Specifying a target bean as final name in the "interceptorNames"
list is deprecated and will be removed in a future Spring version.
Use the "targetName" property instead.
Set the value of the singleton property. Governs whether this factory
should always return the same proxy instance (which implies the same target)
or whether it should return a new prototype instance, which implies that
the target and interceptors may be new instances also, if they are obtained
from prototype bean definitions. This allows for fine control of
independence/uniqueness in the object graph.
Return a proxy. Invoked when clients obtain beans from this factory bean.
Create an instance of the AOP proxy to be returned by this factory.
The instance will be cached for a singleton, and create on each call to
getObject() for a proxy.
Return the type of the proxy. Will check the singleton instance if
already created, else fall back to the proxy interface (in case of just
a single one), the target bean type, or the TargetSource's target class.
Is the object managed by this factory a singleton? That is,
will FactoryBean.getObject() always return the same object
(a reference that can be cached)?
NOTE: If a FactoryBean indicates to hold a singleton object,
the object returned from getObject() might get cached
by the owning BeanFactory. Hence, do not return true
unless the FactoryBean always exposes the same reference.
The singleton status of the FactoryBean itself will generally
be provided by the owning BeanFactory; usually, it has to be
defined as singleton there.
NOTE: This method returning false does not
necessarily indicate that returned objects are independent instances.
An implementation of the extended SmartFactoryBean interface
may explicitly indicate independent instances through its
SmartFactoryBean.isPrototype() method. Plain FactoryBean
implementations which do not implement this extended interface are
simply assumed to always return independent instances if the
isSingleton() implementation returns false.
The default implementation returns true, since a
FactoryBean typically manages a singleton instance.