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Jetty example source code file (PostConstructCallback.java)

This example Jetty source code file (PostConstructCallback.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Jetty tags/keywords

exception, exception, lifecyclecallback, method, method, object, object, postconstructcallback, postconstructcallback, reflection

The Jetty PostConstructCallback.java source code

//========================================================================
//$Id: PostConstructCallback.java 1540 2007-01-19 12:24:10Z janb $
//Copyright 2006 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//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.mortbay.jetty.plus.annotation;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

import org.mortbay.log.Log;

/**
 * PostConstructCallback
 *
 *
 */
public class PostConstructCallback extends LifeCycleCallback
{

    /** 
     * Commons Annotation Specification section 2.5
     *  - no params
     *  - must be void return 
     *  - no checked exceptions
     *  - cannot be static
     * @see org.mortbay.jetty.plus.annotation.LifeCycleCallback#validate(java.lang.Class, java.lang.reflect.Method)
     */
    public void validate(Class clazz, Method method)
    {
        if (method.getExceptionTypes().length > 0)
            throw new IllegalArgumentException(clazz.getName()+"."+method.getName()+ " cannot not throw a checked exception");
        
        if (!method.getReturnType().equals(Void.TYPE))
            throw new IllegalArgumentException(clazz.getName()+"."+method.getName()+ " cannot not have a return type");
        
        if (Modifier.isStatic(method.getModifiers()))
            throw new IllegalArgumentException(clazz.getName()+"."+method.getName()+ " cannot be static");
    }
    
    
    public void callback (Object instance)
    throws Exception
    {
        super.callback(instance);
    }

    public boolean equals (Object o)
    {
        if (super.equals(o) && (o instanceof PostConstructCallback))
            return true;
        return false;
    }
}

Other Jetty examples (source code examples)

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