net.bioclipse.structuredb.persistency.dao.FetchIntroductionInterceptor.java Source code

Introduction

Here is the source code for net.bioclipse.structuredb.persistency.dao.FetchIntroductionInterceptor.java

Source

/* *****************************************************************************
 * Copyright (c) 2007 - 2009  Jonathan Alvarsson <jonalv@users.sourceforge.net>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * <http://www.eclipse.org/legal/epl-v10.html>
 *
 * Contact: http://www.bioclipse.net/
 ******************************************************************************/

package net.bioclipse.structuredb.persistency.dao;

import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.IntroductionInterceptor;

/**
 * @author jonalv
 */
public class FetchIntroductionInterceptor implements IntroductionInterceptor {

    public Object invoke(MethodInvocation invocation) throws Throwable {

        FetchExecutor<?> genericDao = (FetchExecutor<?>) invocation.getThis();

        String methodName = invocation.getMethod().getName();
        if (methodName.startsWith("fetchObject")) {
            return genericDao.executeObjectFetch(invocation.getMethod(), invocation.getArguments());
        } else if (methodName.startsWith("fetchList")) {
            return genericDao.executeListFetch(invocation.getMethod(), invocation.getArguments());
        } else {
            return invocation.proceed();
        }
    }

    @SuppressWarnings("unchecked")
    public boolean implementsInterface(Class intf) {
        return intf.isInterface() && FetchExecutor.class.isAssignableFrom(intf);
    }
}