org.springframework.aop.framework

Class ProxyProcessorSupport

java.lang.Object

org.springframework.aop.framework.ProxyConfig

org.springframework.aop.framework.ProxyProcessorSupport

All Implemented Interfaces:

java.io.Serializable, AopInfrastructureBean, Aware, BeanClassLoaderAware, Ordered

Direct Known Subclasses:

AbstractAdvisingBeanPostProcessor, AbstractAutoProxyCreator

public class ProxyProcessorSupport
extends ProxyConfig
implements Ordered, BeanClassLoaderAware, AopInfrastructureBean

Base class with common functionality for proxy processors, in particular ClassLoader management and the evaluateProxyInterfaces(java.lang.Class<?>, org.springframework.aop.framework.ProxyFactory) algorithm.

Since:

4.1

Author:

Juergen Hoeller

See Also:

AbstractAdvisingBeanPostProcessor, AbstractAutoProxyCreator, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	classLoaderConfigured
private int	order This should run after all other processors, so that it can just add an advisor to existing proxies rather than double-proxy.
private java.lang.ClassLoader	proxyClassLoader

Fields inherited from class org.springframework.aop.framework.ProxyConfig

exposeProxy, opaque

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
ProxyProcessorSupport()

Method Summary

Modifier and Type	Method and Description
protected void	evaluateProxyInterfaces(java.lang.Class<?> beanClass, ProxyFactory proxyFactory) Check the interfaces on the given bean class and apply them to the ProxyFactory, if appropriate.
int	getOrder() Get the order value of this object.
protected java.lang.ClassLoader	getProxyClassLoader() Return the configured proxy ClassLoader for this processor.
protected boolean	isConfigurationCallbackInterface(java.lang.Class<?> ifc) Determine whether the given interface is just a container callback and therefore not to be considered as a reasonable proxy interface.
protected boolean	isInternalLanguageInterface(java.lang.Class<?> ifc) Determine whether the given interface is a well-known internal language interface and therefore not to be considered as a reasonable proxy interface.
void	setBeanClassLoader(java.lang.ClassLoader classLoader) Callback that supplies the bean class loader to a bean instance.
void	setOrder(int order) Set the ordering which will apply to this class's implementation of Ordered, used when applying multiple processors.
void	setProxyClassLoader(java.lang.ClassLoader classLoader) Set the ClassLoader to generate the proxy class in.

Methods inherited from class org.springframework.aop.framework.ProxyConfig

copyFrom, isExposeProxy, isFrozen, isOpaque, isOptimize, isProxyTargetClass, setExposeProxy, setFrozen, setOpaque, setOptimize, setProxyTargetClass, toString

Methods inherited from class java.lang.Object

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

Field Detail

order

private int order

This should run after all other processors, so that it can just add an advisor to existing proxies rather than double-proxy.

proxyClassLoader

private java.lang.ClassLoader proxyClassLoader

classLoaderConfigured

private boolean classLoaderConfigured

Constructor Detail

ProxyProcessorSupport

public ProxyProcessorSupport()

Method Detail

setOrder

public void setOrder(int order)

Set the ordering which will apply to this class's implementation of Ordered, used when applying multiple processors.

Default value is Integer.MAX_VALUE, meaning that it's non-ordered.

Parameters:

order - the ordering value

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

setProxyClassLoader

public void setProxyClassLoader(java.lang.ClassLoader classLoader)

Set the ClassLoader to generate the proxy class in.

Default is the bean ClassLoader, i.e. the ClassLoader used by the containing BeanFactory for loading all bean classes. This can be overridden here for specific proxies.

getProxyClassLoader

protected java.lang.ClassLoader getProxyClassLoader()

Return the configured proxy ClassLoader for this processor.

setBeanClassLoader

public void setBeanClassLoader(java.lang.ClassLoader classLoader)

Description copied from interface: BeanClassLoaderAware

Callback that supplies the bean class loader to a bean instance.

Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean's InitializingBean.afterPropertiesSet() method or a custom init-method.

Specified by:

setBeanClassLoader in interface BeanClassLoaderAware

Parameters:

classLoader - the owning class loader; may be null in which case a default ClassLoader must be used, for example the ClassLoader obtained via ClassUtils.getDefaultClassLoader()

evaluateProxyInterfaces

protected void evaluateProxyInterfaces(java.lang.Class<?> beanClass,
                                       ProxyFactory proxyFactory)

Check the interfaces on the given bean class and apply them to the ProxyFactory, if appropriate.

Calls isConfigurationCallbackInterface(java.lang.Class<?>) and isInternalLanguageInterface(java.lang.Class<?>) to filter for reasonable proxy interfaces, falling back to a target-class proxy otherwise.

Parameters:

beanClass - the class of the bean

proxyFactory - the ProxyFactory for the bean

isConfigurationCallbackInterface

protected boolean isConfigurationCallbackInterface(java.lang.Class<?> ifc)

Determine whether the given interface is just a container callback and therefore not to be considered as a reasonable proxy interface.

If no reasonable proxy interface is found for a given bean, it will get proxied with its full target class, assuming that as the user's intention.

Parameters:

ifc - the interface to check

Returns:

whether the given interface is just a container callback

isInternalLanguageInterface

protected boolean isInternalLanguageInterface(java.lang.Class<?> ifc)

Determine whether the given interface is a well-known internal language interface and therefore not to be considered as a reasonable proxy interface.

If no reasonable proxy interface is found for a given bean, it will get proxied with its full target class, assuming that as the user's intention.

Parameters:

ifc - the interface to check

Returns:

whether the given interface is an internal language interface