Class DefaultContextLoadTimeWeaver
- java.lang.Object
- org.springframework.context.weaving.DefaultContextLoadTimeWeaver
- All Implemented Interfaces:
Aware
,BeanClassLoaderAware
,DisposableBean
,LoadTimeWeaver
public class DefaultContextLoadTimeWeaver extends Object implements LoadTimeWeaver, BeanClassLoaderAware, DisposableBean
DefaultLoadTimeWeaver
bean for use in an application context, decorating an automatically detected internalLoadTimeWeaver
.Typically registered for the default bean name "
loadTimeWeaver
"; the most convenient way to achieve this is Spring's<context:load-time-weaver>
XML tag.This class implements a runtime environment check for obtaining the appropriate weaver implementation: As of Spring 4.0, it detects Oracle WebLogic 10, GlassFish 3, Tomcat 6, 7 and 8, JBoss AS 5, 6 and 7, IBM WebSphere 7 and 8,
Spring's VM agent
, and anyClassLoader
supported by Spring'sReflectiveLoadTimeWeaver
.- Since:
- 2.5
- Author:
- Juergen Hoeller, Ramnivas Laddad, Costin Leau
- See Also:
ConfigurableApplicationContext.LOAD_TIME_WEAVER_BEAN_NAME
Constructor Summary
Constructors Constructor Description DefaultContextLoadTimeWeaver()
DefaultContextLoadTimeWeaver(ClassLoader beanClassLoader)
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addTransformer(ClassFileTransformer transformer)
Add aClassFileTransformer
to be applied by thisLoadTimeWeaver
.protected LoadTimeWeaver
createServerSpecificLoadTimeWeaver(ClassLoader classLoader)
void
destroy()
Invoked by the containingBeanFactory
on destruction of a bean.ClassLoader
getInstrumentableClassLoader()
Return aClassLoader
that supports instrumentation through AspectJ-style load-time weaving based on user-definedClassFileTransformers
.ClassLoader
getThrowawayClassLoader()
Return a throwawayClassLoader
, enabling classes to be loaded and inspected without affecting the parentClassLoader
.void
setBeanClassLoader(ClassLoader classLoader)
Callback that supplies the beanclass loader
to a bean instance.
Constructor Detail
DefaultContextLoadTimeWeaver
public DefaultContextLoadTimeWeaver()
DefaultContextLoadTimeWeaver
public DefaultContextLoadTimeWeaver(ClassLoader beanClassLoader)
Method Detail
setBeanClassLoader
public void setBeanClassLoader(ClassLoader classLoader)
Description copied from interface:BeanClassLoaderAware
Callback that supplies the beanclass 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 interfaceBeanClassLoaderAware
- Parameters:
classLoader
- the owning class loader; may benull
in which case a defaultClassLoader
must be used, for example theClassLoader
obtained viaClassUtils.getDefaultClassLoader()
createServerSpecificLoadTimeWeaver
protected LoadTimeWeaver createServerSpecificLoadTimeWeaver(ClassLoader classLoader)
destroy
public void destroy()
Description copied from interface:DisposableBean
Invoked by the containingBeanFactory
on destruction of a bean.- Specified by:
destroy
in interfaceDisposableBean
addTransformer
public void addTransformer(ClassFileTransformer transformer)
Description copied from interface:LoadTimeWeaver
Add aClassFileTransformer
to be applied by thisLoadTimeWeaver
.- Specified by:
addTransformer
in interfaceLoadTimeWeaver
- Parameters:
transformer
- theClassFileTransformer
to add
getInstrumentableClassLoader
public ClassLoader getInstrumentableClassLoader()
Description copied from interface:LoadTimeWeaver
Return aClassLoader
that supports instrumentation through AspectJ-style load-time weaving based on user-definedClassFileTransformers
.May be the current
ClassLoader
, or aClassLoader
created by thisLoadTimeWeaver
instance.- Specified by:
getInstrumentableClassLoader
in interfaceLoadTimeWeaver
- Returns:
- the
ClassLoader
which will expose instrumented classes according to the registered transformers
getThrowawayClassLoader
public ClassLoader getThrowawayClassLoader()
Description copied from interface:LoadTimeWeaver
Return a throwawayClassLoader
, enabling classes to be loaded and inspected without affecting the parentClassLoader
.Should not return the same instance of the
ClassLoader
returned from an invocation ofLoadTimeWeaver.getInstrumentableClassLoader()
.- Specified by:
getThrowawayClassLoader
in interfaceLoadTimeWeaver
- Returns:
- a temporary throwaway
ClassLoader
; should return a new instance for each call, with no existing state