/*
* Copyright 2002-2008 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.aop;
Tag interface for throws advice.
There are not any methods on this interface, as methods are invoked by
reflection. Implementing classes must implement methods of the form:
void afterThrowing([Method, args, target], ThrowableSubclass);
Some examples of valid methods would be:
public void afterThrowing(Exception ex)
public void afterThrowing(RemoteException)
public void afterThrowing(Method method, Object[] args, Object target, Exception ex)
public void afterThrowing(Method method, Object[] args, Object target, ServletException ex)
The first three arguments are optional, and only useful if we want further
information about the joinpoint, as in AspectJ after-throwing advice.
Note: If a throws-advice method throws an exception itself, it will
override the original exception (i.e. change the exception thrown to the user).
The overriding exception will typically be a RuntimeException; this is compatible
with any method signature. However, if a throws-advice method throws a checked
exception, it will have to match the declared exceptions of the target method
and is hence to some degree coupled to specific target method signatures.
Do not throw an undeclared checked exception that is incompatible with
the target method's signature!
Author: Rod Johnson, Juergen Hoeller See Also:
/**
* Tag interface for throws advice.
*
* <p>There are not any methods on this interface, as methods are invoked by
* reflection. Implementing classes must implement methods of the form:
*
* <pre class="code">void afterThrowing([Method, args, target], ThrowableSubclass);</pre>
*
* <p>Some examples of valid methods would be:
*
* <pre class="code">public void afterThrowing(Exception ex)</pre>
* <pre class="code">public void afterThrowing(RemoteException)</pre>
* <pre class="code">public void afterThrowing(Method method, Object[] args, Object target, Exception ex)</pre>
* <pre class="code">public void afterThrowing(Method method, Object[] args, Object target, ServletException ex)</pre>
*
* The first three arguments are optional, and only useful if we want further
* information about the joinpoint, as in AspectJ <b>after-throwing</b> advice.
*
* <p><b>Note:</b> If a throws-advice method throws an exception itself, it will
* override the original exception (i.e. change the exception thrown to the user).
* The overriding exception will typically be a RuntimeException; this is compatible
* with any method signature. However, if a throws-advice method throws a checked
* exception, it will have to match the declared exceptions of the target method
* and is hence to some degree coupled to specific target method signatures.
* <b>Do not throw an undeclared checked exception that is incompatible with
* the target method's signature!</b>
*
* @author Rod Johnson
* @author Juergen Hoeller
* @see AfterReturningAdvice
* @see MethodBeforeAdvice
*/
public interface ThrowsAdvice extends AfterAdvice {
}