public class ExposeInvocationInterceptor extends Object implements MethodInterceptor, Ordered, Serializable
MethodInvocation
as a thread-local object. We occasionally need to do this; for example, when a pointcut
(e.g. an AspectJ expression pointcut) needs to know the full invocation context.
Don't use this interceptor unless this is really necessary. Target objects should not normally know about Spring AOP, as this creates a dependency on Spring API. Target objects should be plain POJOs as far as possible.
If used, this interceptor will normally be the first in the interceptor chain.
Modifier and Type | Field and Description |
---|---|
static Advisor |
ADVISOR
Singleton advisor for this class.
|
static ExposeInvocationInterceptor |
INSTANCE
Singleton instance of this class
|
HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE
Modifier and Type | Method and Description |
---|---|
static MethodInvocation |
currentInvocation()
Return the AOP Alliance MethodInvocation object associated with the current invocation.
|
int |
getOrder()
Return the order value of this object, with a
higher value meaning greater in terms of sorting.
|
Object |
invoke(MethodInvocation mi) |
public static final ExposeInvocationInterceptor INSTANCE
public static final Advisor ADVISOR
public static MethodInvocation currentInvocation() throws IllegalStateException
IllegalStateException
- if there is no AOP invocation in progress,
or if the ExposeInvocationInterceptor was not added to this interceptor chainpublic Object invoke(MethodInvocation mi) throws Throwable
invoke
in interface MethodInterceptor
Throwable
public int getOrder()
Ordered
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).