org.springframework.context.weaving

Class AspectJWeavingEnabler

java.lang.Object

org.springframework.context.weaving.AspectJWeavingEnabler

All Implemented Interfaces:

Aware, BeanClassLoaderAware, BeanFactoryPostProcessor, LoadTimeWeaverAware, Ordered

public class AspectJWeavingEnabler
extends java.lang.Object
implements BeanFactoryPostProcessor, BeanClassLoaderAware, LoadTimeWeaverAware, Ordered

Post-processor that registers AspectJ's org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter with the Spring application context's default LoadTimeWeaver.

Since:

2.5

Author:

Juergen Hoeller, Ramnivas Laddad

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	AspectJWeavingEnabler.AspectJClassBypassingClassFileTransformer ClassFileTransformer decorator that suppresses processing of AspectJ classes in order to avoid potential LinkageErrors.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ASPECTJ_AOP_XML_RESOURCE
private java.lang.ClassLoader	beanClassLoader
private LoadTimeWeaver	loadTimeWeaver

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
AspectJWeavingEnabler()

Method Summary

Modifier and Type	Method and Description
static void	enableAspectJWeaving(LoadTimeWeaver weaverToUse, java.lang.ClassLoader beanClassLoader)
int	getOrder() Return the order value of this object, with a higher value meaning greater in terms of sorting.
void	postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) Modify the application context's internal bean factory after its standard initialization.
void	setBeanClassLoader(java.lang.ClassLoader classLoader) Callback that supplies the bean class loader to a bean instance.
void	setLoadTimeWeaver(LoadTimeWeaver loadTimeWeaver) Set the LoadTimeWeaver of this object's containing ApplicationContext.

Methods inherited from class java.lang.Object

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

Field Detail

beanClassLoader

private java.lang.ClassLoader beanClassLoader

loadTimeWeaver

private LoadTimeWeaver loadTimeWeaver

ASPECTJ_AOP_XML_RESOURCE

public static final java.lang.String ASPECTJ_AOP_XML_RESOURCE

See Also:

Constant Field Values

Constructor Detail

AspectJWeavingEnabler

public AspectJWeavingEnabler()

Method Detail

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()

setLoadTimeWeaver

public void setLoadTimeWeaver(LoadTimeWeaver loadTimeWeaver)

Description copied from interface: LoadTimeWeaverAware

Set the LoadTimeWeaver of this object's containing ApplicationContext.

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

NOTE: This method will only be called if there actually is a LoadTimeWeaver available in the application context. If there is none, the method will simply not get invoked, assuming that the implementing object is able to activate its weaving dependency accordingly.

Specified by:

setLoadTimeWeaver in interface LoadTimeWeaverAware

Parameters:

loadTimeWeaver - the LoadTimeWeaver instance (never null)

See Also:

InitializingBean.afterPropertiesSet(), ApplicationContextAware.setApplicationContext(org.springframework.context.ApplicationContext)

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

postProcessBeanFactory

public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
                            throws BeansException

Description copied from interface: BeanFactoryPostProcessor

Modify the application context's internal bean factory after its standard initialization. All bean definitions will have been loaded, but no beans will have been instantiated yet. This allows for overriding or adding properties even to eager-initializing beans.

Specified by:

postProcessBeanFactory in interface BeanFactoryPostProcessor

Parameters:

beanFactory - the bean factory used by the application context

Throws:

BeansException - in case of errors

enableAspectJWeaving

public static void enableAspectJWeaving(LoadTimeWeaver weaverToUse,
                                        java.lang.ClassLoader beanClassLoader)