/*
* Created on Sep 22, 2004
*
* 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.
*
* Copyright @2004 the original author or authors.
*/
package org.springmodules.cache.interceptor.flush;
import java.lang.reflect.Method;
import org.springframework.aop.framework.AopConfigException;
import org.springframework.aop.support.StaticMethodMatcherPointcutAdvisor;
import org.springmodules.cache.FlushingModel;
/**
* <p>
* Advisor driven by a <code>{@link FlushingModelSource}</code> that tells
* <code>{@link NameMatchFlushingInterceptor}</code> which methods should be
* intercepted.
* </p>
*
* @author Alex Ruiz
*/
public class FlushingModelSourceAdvisor extends
StaticMethodMatcherPointcutAdvisor {
private static final long serialVersionUID = -8490076545170797788L;
/**
* Retrieves instances of <code>{@link FlushingModel}</code> for intercepted
* methods.
*/
private FlushingModelSource flushingModelSource;
/**
* @param interceptor
* Advice that caches the returned value of intercepted methods.
* @throws AopConfigException
* if the <code>FlushingAttributeSource</code> of
* <code>cacheInterceptor</code> is <code>null</code>.
*/
public FlushingModelSourceAdvisor(NameMatchFlushingInterceptor interceptor) {
super(interceptor);
FlushingModelSource tempSource = interceptor.getFlushingModelSource();
if (tempSource == null) {
throw new AopConfigException("<" + interceptor.getClass().getName()
+ "> has no <" + FlushingModelSource.class.getName() + "> configured");
}
flushingModelSource = tempSource;
}
/**
* @param method
* the intercepted method to verify.
* @param targetClass
* the class declaring the method.
* @return <code>true</code> if the return value of the intercepted method
* should be cached.
*/
public final boolean matches(Method method, Class targetClass) {
FlushingModel model = flushingModelSource.getFlushingModel(method,
targetClass);
boolean matches = (model != null);
return matches;
}
}