public class DefaultContextLoadTimeWeaver extends Object implements LoadTimeWeaver, BeanClassLoaderAware, DisposableBean
LoadTimeWeaver
bean for use in an application context,
decorating an automatically detected internal LoadTimeWeaver
.
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 any ClassLoader
supported by Spring's ReflectiveLoadTimeWeaver
.
ConfigurableApplicationContext.LOAD_TIME_WEAVER_BEAN_NAME
Constructor and Description |
---|
DefaultContextLoadTimeWeaver() |
DefaultContextLoadTimeWeaver(ClassLoader beanClassLoader) |
Modifier and Type | Method and Description |
---|---|
void |
addTransformer(ClassFileTransformer transformer)
Add a
ClassFileTransformer to be applied by this
LoadTimeWeaver . |
protected LoadTimeWeaver |
createServerSpecificLoadTimeWeaver(ClassLoader classLoader) |
void |
destroy()
Invoked by a BeanFactory on destruction of a singleton.
|
ClassLoader |
getInstrumentableClassLoader()
Return a
ClassLoader that supports instrumentation
through AspectJ-style load-time weaving based on user-defined
ClassFileTransformers . |
ClassLoader |
getThrowawayClassLoader()
Return a throwaway
ClassLoader , enabling classes to be
loaded and inspected without affecting the parent ClassLoader . |
void |
setBeanClassLoader(ClassLoader classLoader)
Callback that supplies the bean
class loader to
a bean instance. |
protected final Log logger
public DefaultContextLoadTimeWeaver()
public DefaultContextLoadTimeWeaver(ClassLoader beanClassLoader)
public void setBeanClassLoader(ClassLoader classLoader)
BeanClassLoaderAware
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.
setBeanClassLoader
in interface BeanClassLoaderAware
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()
protected LoadTimeWeaver createServerSpecificLoadTimeWeaver(ClassLoader classLoader)
public void destroy()
DisposableBean
destroy
in interface DisposableBean
public void addTransformer(ClassFileTransformer transformer)
LoadTimeWeaver
ClassFileTransformer
to be applied by this
LoadTimeWeaver
.addTransformer
in interface LoadTimeWeaver
transformer
- the ClassFileTransformer
to addpublic ClassLoader getInstrumentableClassLoader()
LoadTimeWeaver
ClassLoader
that supports instrumentation
through AspectJ-style load-time weaving based on user-defined
ClassFileTransformers
.
May be the current ClassLoader
, or a ClassLoader
created by this LoadTimeWeaver
instance.
getInstrumentableClassLoader
in interface LoadTimeWeaver
ClassLoader
which will expose
instrumented classes according to the registered transformerspublic ClassLoader getThrowawayClassLoader()
LoadTimeWeaver
ClassLoader
, enabling classes to be
loaded and inspected without affecting the parent ClassLoader
.
Should not return the same instance of the ClassLoader
returned from an invocation of LoadTimeWeaver.getInstrumentableClassLoader()
.
getThrowawayClassLoader
in interface LoadTimeWeaver
ClassLoader
; should return
a new instance for each call, with no existing state