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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.util;

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

/**
 * 
 * Sets the CreateIfNull for type conversion.
 * 
 *
 * 
 Annotation usage:
 *
 * 
 * 
The CreateIfNull annotation must be applied at field or method level.
 * 
 * 
 Annotation parameters:
 *
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * Parameter Required Default Description
value no false The CreateIfNull property value.
 * 
 *
 *  Example code:
 * 
 * 
 * @CreateIfNull( value = true )
 * private List users;
 * 
 * 
 *
 * @author Rainer Hermanns
 * @version $Id: CreateIfNull.java 1833 2008-06-21 09:29:39Z rainerh $
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD})
public @interface CreateIfNull {

    /**
     * The CreateIfNull value.
     * Defaults to true.
     */
    boolean value() default true;
}