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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.conversion.annotations;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 
 * A marker annotation for type conversions at Type level.
 * 
 *
 * 
 Annotation usage:
 *
 * 
 * 
The Conversion annotation must be applied at Type level.
 * 
 *
 * 
 Annotation parameters:
 *
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * Parameter Required Default Description
conversion no   used for Type Conversions applied at Type level.
 * 
 *
 *  Example code:
 *
 * 
 * 
 * @Conversion()
 * public class ConversionAction implements Action {
 * }
 *
 * 
 * 
 *
 * @author Rainer Hermanns
 * @version $Id: Conversion.java 1833 2008-06-21 09:29:39Z rainerh $
 */
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface Conversion {

    /**
     * Allow Type Conversions being applied at Type level.
     */
    TypeConversion[] conversions() default {};
}