/*
* Copyright 2002-2006 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.aspectj.annotation;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.DeclareParents;
import org.springframework.aop.framework.DefaultLockable;
import org.springframework.aop.framework.Lockable;
/**
* Demonstrates introductions, AspectJ annotation style.
* <p>
* @author Rod Johnson
* @since 2.0
*/
@Aspect
public class MakeLockable {
@DeclareParents(value = "org.springframework..*",
defaultImpl=DefaultLockable.class)
public static Lockable mixin;
@Before(value="execution(void set*(*)) && this(mixin)", argNames="mixin")
public void checkNotLocked(
Lockable mixin) // Bind to arg
{
// Can also obtain the mixin (this) this way
//Lockable mixin = (Lockable) jp.getThis();
if (mixin.locked()) {
throw new IllegalStateException();
}
}
}
/*
*
* public aspect MakeLockable {
*
* declare parents org....* implements Lockable;
*
* private boolean Lockable.locked;
* public void Lockable.lock() {
this.locked = true;
}
* public void Lockable.unlock() {
this.locked = false;
}
* public boolean Lockable.locked() {
return this.locked;
}
*
*
* }
*/