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Gemini is a web framework created by TechEmpower.
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 * Copyright (c) 2018, TechEmpower, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
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 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name TechEmpower, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL TECHEMPOWER, INC. BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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package com.techempower.cache.annotation;

import java.lang.annotation.*;

/**
 * This annotation is used to mark entity classes or methods as indexed. Classes
 * or methods marked as @Indexed should always cache method values, even if
 * method value caching is turned off.
 * 
 * IMPORTANT: If you use this annotation in an application that uses the
 * CacheMessageManager to distribute cache updates to other instances, it is
 * your responsibility to ensure that your corresponding EntityGroup
 * ("distribute" defaulting to false) or CacheGroup ("distribute" defaulting to
 * true) has the "distribute" flag set to true. Otherwise each instance will
 * risk having a stale method value cache and you'll get wrong answers from
 * EntityStore.get() and list() and honestly it won't be very fun.
 */
@Target({ ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface Indexed { }