org.hibernate.annotations.DynamicUpdate Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of beangle-hibernate-core Show documentation

Hibernate Orm Core Shade,Support Scala Collection

There is a newer version: 6.6.2.Final

Show newest version

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or .
 */
package org.hibernate.annotations;

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

import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Specifies that SQL {@code update} statements for the annotated entity
 * are generated dynamically, and only include columns which are actually
 * being updated.
 * 
 * This might result in improved performance if it is common to change
 * only some of the attributes of the entity. However, there is a cost
 * associated with generating the SQL at runtime.
 * 
 * When detached entities are reattached using
 * {@link org.hibernate.Session#update(Object)}, the entity must also be
 * annotated {@link SelectBeforeUpdate} for this annotation to have any
 * effect.
 *
 * @author Steve Ebersole
 *
 * @see SelectBeforeUpdate
 */
@Target( TYPE )
@Retention( RUNTIME )
public @interface DynamicUpdate {
	/**
	 * @deprecated When {@code false}, this annotation has no effect.
	 */
	@Deprecated(since = "6.0")
	boolean value() default true;
}