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XWork is an command-pattern framework that is used to power WebWork as well as other applications. XWork provides an Inversion of Control container, a powerful expression language, data type conversion, validation, and pluggable configuration.

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/*
 * Copyright (c) 2002-2006 by OpenSymphony
 * All rights reserved.
 */
package com.opensymphony.xwork2.interceptor;

import com.opensymphony.xwork2.ActionInvocation;

/**
 * Provides default implementations of optional lifecycle methods
 */
public abstract class AbstractInterceptor implements Interceptor {

    /**
     * Does nothing
     */
    public void init() {
    }
    
    /**
     * Does nothing
     */
    public void destroy() {
    }


    /**
     * Override to handle interception
     */
    public abstract String intercept(ActionInvocation invocation) throws Exception;
}