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redkale/src/main/java/javax/persistence/Cacheable.java
2023-01-06 12:47:12 +08:00

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/** *****************************************************************************
* Copyright (c) 2008 - 2013 Oracle Corporation. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Linda DeMichiel - Java Persistence 2.1
* Linda DeMichiel - Java Persistence 2.0
*
***************************************************************************** */
package javax.persistence;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.*;
/**
* Specifies whether an entity should be cached if caching is enabled
* when the value of the <code>persistence.xml</code> caching element
* is <code>ENABLE_SELECTIVE</code> or <code>DISABLE_SELECTIVE</code>.
* The value of the <code>Cacheable</code> annotation is inherited by
* subclasses; it can be overridden by specifying
* <code>Cacheable</code> on a subclass.
*
* <p>
* <code>Cacheable(false)</code> means that the entity and its state must
* not be cached by the provider.
*
* @since Java Persistence 2.0
*
* @deprecated replace by org.redkale.persistence.Cacheable
*/
@Deprecated(since = "2.8.0")
@Target({TYPE})
@Retention(RUNTIME)
public @interface Cacheable {
/**
* (Optional) Whether or not the entity should be cached.
*
* @return boolean
*/
boolean value() default true;
/**
* (Optional) 定时自动更新缓存的周期秒数为0表示不做定时更新 大于0表示每经过interval秒后会自动从数据库中拉取数据更新Cache
*
* @return int
*/
int interval() default 0;
/**
* DataSource是否直接返回对象的真实引用 而不是copy一份
*
* @return boolean
*/
boolean direct() default false;
}