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

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The core O/RM functionality as provided by Hibernate

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/*
 * 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.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Defines size for batch loading of collections or lazy entities.  For example...
 *  *     @Entity
 *     @BatchSize(size=100)
 *     class Product {
 *         ...
 *     }
 * 
 * will initialize up to 100 lazy Product entity proxies at a time.
 *
 *  *     	@OneToMany
 *     	@BatchSize(size = 5) /
 *     	Set getProducts() { ... };
 * 
 * will initialize up to 5 lazy collections of products at a time
 *
 * @author Emmanuel Bernard
 * @author Steve Ebersole
 */
@Target({TYPE, METHOD, FIELD})
@Retention(RUNTIME)
public @interface BatchSize {
	/**
	 * Strictly positive integer.
	 */
	int size();
}