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#1Entity 生命週期
JPA中的Entity物件的狀態，可以分為四種：New、Managed、Detached、Removed。以下使用Application-Managed EntityManager爲例作...
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#2difference between 'detach' and 'remove' entityManager's ...
Remove the given entity from the persistence context, causing a managed entity to become detached. Unflushed changes made to the entity if any (including ...
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#3javax.persistence.EntityManager.detach java code examples
EntityManager.detach (Showing top 20 results out of 666). Common ways to obtain EntityManager. private void myMethod () {. EntityManager e = Codota Icon ...
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#4Detached Entity Objects - ObjectDB
Detached entity objects are objects in a special state in which they are not managed by any EntityManager javax.persistence.
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#5EntityManager (Java(TM) EE 7 Specification APIs) - Oracle ...
Remove the given entity from the persistence context, causing a managed entity to become detached. Unflushed changes made to the entity if any (including ...
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#6JPA - EntityManager.detach Examples - LogicBig
JPA - EntityManager.detach Examples. JPA JAVA EE. private static void findAndDetachEntity() { EntityManager em = entityManagerFactory.createEntityManager();
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#7Java EntityManager.remove方法代碼示例- 純淨天空
本文整理匯總了Java中javax.persistence.EntityManager.remove方法的典型用法代碼示例。如果您正苦於以下問題：Java EntityManager.remove方法的具體用法？
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#8EntityManager (Java(TM) EE 8 Specification APIs)
The EntityManager API is used to create and remove persistent entity ... Clear the persistence context, causing all managed entities to become detached.
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#9從JPA / EJB3持久性上下文中分離實體(Detach an entity from ...
分離通過EntityManager獲取的特定JPA實體Bean的最簡單方法是什麼。或者,我是否可以首先通過查詢返回分離的對象,使它們本質上充當“只讀”對象?
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#10Guide to the Hibernate EntityManager | Baeldung
In the event that we need to detach an entity from the persistence context, we can use the detach() method. We pass the object to be detached as ...
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#11java - 什么时候应该使用EntityManager detach方法？ - IT工具网
我有以下代码，其中em是EntityManager： Query query = em.createQuery( "SELECT e FROM TODO e " ); ret = (TODO) query.getSingleResult(); em.detach( ret ); ...
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#12Hibernate JPA @OneToMany cascade設為 ... - 菜鳥工程師肉豬
Detach 的意思是指實體物件脫離persistence context管理的意思，所以當呼叫 EntityManager.detach() 對實體物件進行detach時，該實體物件就會 ...
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#13我应该使用JPA EntityManager.clear()而不是EntityManager ...
我更喜欢使用EntityManager。detach(对象实体)来恢复/停止更改。根据我的理解，这个分离方法只能恢复给定实体/ DTO对象上的更改。
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#15Chapter 3. Working with objects - JBoss Community Confluence
EntityManager.remove() will remove an objects state from the database. Of course, your application might still hold a reference to a deleted object. You can ...
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#16EntityManager::detach, Doctrine\ORM PHP Code Examples
PHP Doctrine\ORM EntityManager::detach - 24 examples found. These are the top rated real world PHP examples of Doctrine\ORM\EntityManager::detach extracted ...
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#17Hibernate Tips: How to remove entities from the ... - LinkedIn
Remove entities from the persistence context before doing bulk ... You can prevent that by calling the flush method on the EntityManager.
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#18Hibernate Tips: How to remove entities ... - Thorben Janssen
You can prevent that by calling the flush method on the EntityManager. After you've done that, you can remove a specific entity from the persistence context ...
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#19JPA EntityManager remove() example Using Spring Boot
Let's see JPA EntityManager remove() example using Spring Boot and Oracle. ... Open eclipse and create maven project, Don't forget to check ' ...
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#20Entity manager - IBM
Once a persistence context is closed, all managed entity object instances become detached from the persistence context and its associated entity ...
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#21javax.persistence.EntityManager#remove - ProgramCreek.com
This page shows Java code examples of javax.persistence.EntityManager#remove.
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#22TestEntityManager (Spring Boot 2.6.3 API)
Provides a subset of EntityManager methods that are useful for tests as well ... from the persistence context, causing a managed entity to become detached.
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#23Deprecate EntityRepository#clear() · Issue #7922 · doctrine/orm
That method calls EntityManager#clear() with an argument, ... ERROR: Method Doctrine\\ORM\\EntityManager::detach() is deprecated and will be ...
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#24JPA implementation patterns: Saving (detached) entities - Xebia
Or a similar message when we use a different JPA provider than the Hibernate EntityManager. So what is that detached entity the message talks ...
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#25EntityManagerDelegate (Apache DeltaSpike Sources 1.7.2 API)
Expose EntityManager methods not present on repository base interfaces. Calls the corresponding method on the ... See EntityManager.detach(Object) .
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#26JPA EntityManager的四個主要方法——persist,merge,refresh ...
JPA EntityManager的四個主要方法——persist,merge,refresh和remove 部落格分類: JPA. public void persist(Object entity). persist方法可以將例項 ...
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#27JPA EntityManager.detach() still load lazy relations
Then it calls the repository-method. Next the test detaches (and clear the entitymanager, checks that the object is not contained in the em etc etc). Last the ...
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#28关于java：Spring JpaRepository-分离并附加实体 - 码农家园
Spring JpaRepository - Detach and Attach entity我正在使用Spring Boot并 ... 如果使用的是JPA 2.0，则可以使用EntityManager＃detach()从持久性 ...
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#29Entity Management - Developer
An EntityManager instance is associated with a persistence context. ... The EntityManager API is used to create and remove persistent entity instances, ...
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#30Java Persistence/Persisting - Wikibooks, open books for an ...
... through clear , or the object is forced to be detached through detach . ... The EntityManager.remove() operation is used to delete an object from the ...
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#31javax.persistence.Entitymanager:remove()方法- JAVA _程式人生
EntityManager 的remove(物件實體)方法僅對從find()方法獲得的那些物件有效嗎？ 我有以下程式碼片段: public void deletePerson() { EntityManager em ...
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#32Java persistence with JPA and Hibernate, Part 2: Many-to ...
Cascade type strategies: The case for PERSIST · DETACH : When an entity is detached from the EntityManager , detach the entities on the other ...
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#33EntityManager#remove() expects parameter 1 to be an entity ...
EntityManager #remove() expects parameter 1 to be an entity object, array given. How to fix? Code : public function deleteAction(Request ...
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#34JPA Tutorial - JPA EntityManager Remove Example - Java2s ...
We can use EntityManager from JPA to remove an entity. In the following code we first get a person object from database by using the find method from ...
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#35Working with Objects - Doctrine
Detaching entities. An entity is detached from an EntityManager and thus no longer managed by invoking the EntityManager#detach($entity) method on it or by ...
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#36需要加注解@Modifying @Transactional 否則報錯如下
No EntityManager with actual transaction available for current thread - cannot reliably process 'remove' call. 在service層加上事務注解，依舊會報錯，而且在 ...
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#37javax.persistence.EntityManager interface
... an entity * or is a detached entity * @throws TransactionRequiredException When the container-managed * EntityManager specifying PersistenceContextType.
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#38What is detached entity in hibernate? - QuickAdviser
detach. Remove the given entity from the persistence context, causing a managed entity to become detached.
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#39Spring JpaRepository - Detach and Attach entity - Stackify
If you are using JPA 2.0, you can use EntityManager#detach() to detach a single entity from persistence context. Also, Hibernate has a Session#evict() which ...
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#40Detach an entity from JPA/EJB3 persistence ... - Coddingbuddy
A detached entity still has the database identity. EntityManager.detach() method is cascaded to entities referenced by this entity if the attribute ...
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#41EntityManager - CUBA Platform. Developer's Manual
After that you should work with the returned Managed instance. The state of this entity will be stored in DB using SQL UPDATE on transaction commit. remove() – ...
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#423. Opérations sur les entités - Java le soir
En revanche, on peut lier une entité à un autre entity manager que celui avec lequel ... sur une entité : PERSIST , REMOVE , REFRESH , DETACH et MERGE .
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#43Spring data jpa detached entity - Pretagteam
@Repository public class UserRepositoryCustomImpl implements UserRepositoryCustom { ... @PersistenceContext private EntityManager entityManager; ...
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#44Hibernate Entity Manager Reference Guide JBoss Enterprise ...
In an extended persistence context, all modification operations (persist, merge, remove) executed outside a transaction are queued until the persistence context ...
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#45JPA的entityManager的find、getReference、persisit - CSDN博客
entityManager.remove(customer);. } 类似于hibernate 中Session 的delete 方法. 把对象对应的记录从数据库中移除。 但注意: 该方法只能移除持久化 ...
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#46Doctrine\ORM\EntityManager::detach
Introduction; Synopsis; Parameter; Interface; Source. Doctrine\ORM\EntityManager::detach. Detaches an entity from the EntityManager, causing a managed ...
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#477. Working with Objects - Doctrine 2 ORM 2 documentation
Detaching entities¶. An entity is detached from an EntityManager and thus no longer managed by invoking the EntityManager#detach($entity) method on it ...
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#48detached entity vs. removed entity - CodeRanch
The detached state is concerned about the state of the object relative to the persistence context ( EntityManager ). Detached has nothing to ...
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#49From detached entity passed to persist to JPA EntityManager
From detached entity passed to persist to JPA EntityManager: Why use persist() over merge()?, Programmer Sought, the best programmer technical posts sharing ...
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#50EntityManager (Jmix-cuba 1.0 API)
Create a type-safe instance of Query for executing a Java Persistence query language statement. void, detach(io.jmix.core.Entity entity).
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#51Introducing the EntityManager (EJB 3) - what-when-how — In ...
In this section you'll learn about the EntityManager interface and its methods. ... Calling the EntityManager's remove method will also detach an entity.
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#52IIvyEntityManager (Axon.ivy Public API (Version 8.0 ...
This means the Transaction is managed itself by this entity manager. It also supports detached entities for all operations, the EntityManager supports only ...
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#53JPA（四）：EntityManager - cctext - 博客园
setId(1); entityManager.remove(person); }. 复制代码. 抛出异常：. java.lang.IllegalArgumentException: Removing a detached ...
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#54JPA Pitfalls (13): EntityManager.merge Result - akquinet AG
The EnityManager interface provides a method merge to merge the state of a detached entity into the current persistence context.
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#55Entity Manager
JPA provides the EntityManager interface for this purpose ... transaction-scoped entity manager can be used to remove an entity only if there is an active.
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#56[Solved] Java Spring JpaRepository Detach and Attach entity
If you are using JPA 2.0, you can use EntityManager#detach() to detach a single entity from persistence context. Also, Hibernate has a Session#evict() which ...
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#57Chapter 6. Java Persistence Entity Operations - :: Java ...
The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary key, and to query over entities. The set of ...
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#58Removing a detached instance - 台部落
this.entityManager = entityManager; } public boolean delete(T t) { try { entityManager.remove(getEntityManager().merge(t)); return true; } ...
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#59JPA EntityManager remove() 无效_mb60b5df927827f的技术博客
JPA EntityManager remove() 无效，上周发现一个问题，删除一条记录的时候发现无法删除，然后排查的时候一行一行定位代码，用的是JPA，删除功能是这样 ...
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#60JPA delete entity example - JPA tutorial - HowToDoInJava
1. JPA delete entity with EntityManager.remove() ... Java program showing JPA delete entity by id. ... In this example, we are first finding the ...
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#61Detach an entity from JPA/EJB3 persistence context
What would be the easiest way to detach a specific JPA Entity Bean that was acquired through an EntityManager. Alternatively, could I have a query return ...
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#62A beginner's guide to Hibernate flush operation order - Vlad ...
Detached : the entity was previously associated with a persistence ... state to another is done by calling the EntityManager methods such as:.
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#63How to delete… not to delete yourself? | Accesto Blog
$entityManager->remove($user); $entityManager->flush();. It's simple. The user connects to the address with a foreign key, so we can not ...
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#64Remove an Entity from Database using JPA with Hibernate
Remove an Entity : · Persistence transition or state change when EntityManager's find() called : · Mapping of Studen.java · Removing Entity Code :.
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#65Detached Entity and Managed Entity - py4u
If entity E1 is a managed entity you can make it detached invoking (very reasonable named) method EntityManager#detach(E1) .
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#66JPA Entity Object Life Cycle - New,Managed,Removed and ...
Working with detached objects, including merging them back to an EntityManager. Example: The JPA 2 provides a detach() method to detach an ...
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#67Databases and the Doctrine ORM (Symfony Docs)
In this case you need to remove the resolve: prefix in ... executes the queries (i.e. the INSERT query) $entityManager->flush(); return new Response('Saved ...
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#68Hi Anonymous - TitanWolf
I need to detach some entity objects from the database to make them unmanaged. I use EclipseLink persistence provider, which method EntityManager.detach() ...
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#69The detaching pitfall of declarative transaction management ...
clear()or entityManager.close()to make entities detached. Why is it important? Well, we'll see in a couple of minutes. @Transactional annotation ...
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#70Tutorial definitivo: Tudo o que você precisa para começar bem ...
O EntityManager só remove objetos que ele está gerenciando. Acontece que, quando usamos o método find , o retorno passa ser gerenciado ...
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#71JPA EntityManager - Hibernate - JournalDev
JPA EntityManager, Hibernate EntityManager, EntityManager example, EntityManager find, persist, remove, JPA EntityManager query example, ...
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#72EJB 3 - Manipulating Entities - DataDisk
Merges an entity to the EntityManager's persistence context and returns the merged entity. public void remove(Object entity);, Removes an entity from the ...
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#73Add, attach, and remove - IdeaBlade DevForce 2012
When do entities get attached? Attaching entities to the EntityManager; Attaching entity graphs; Detaching ...
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#74EntityManager API
remove (merged); tx.commit(); entityManager.close();. There is a difference compared to Hibernate Session API. You need to make the object persistent before ...
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#75EntityManager: Application managed and Container managed
When a Persistence Context (Session) terminates, previously managed entities become detached. An EntityManager instance can be obtained ...
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#76Hibernate EntityManager: remove referenced entity not working
I figured out the problem(s) - Actual there have been two of them: (Leaving this here, if somebody stumbles across a similar issue).
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#77學習Hibernate5 JPA這一篇就夠了 - IT人
EntityManager ; import javax.persistence. ... 1L); entityManager.remove(customer); // 提交事務 ... REMOVE ：級聯刪除* CascadeType.
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#78How do I delete entity object in JPA? | Kode Java
In those methods we call the EntityManager.remove() method. This method of EntityManager will take care of removing the entity object from our database.
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#79Different Entity states in JPA and Hibernate - Jstobigdata
JPA provides entityManager.remove(object); method to remove an entity from the database. NOTE: Only persistent objects can be removed in JPA ...
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#80JPA EntityManager and EntityManagerFactory Example using ...
Using detach() method, we remove the given entity from persistence context. Before detach() , changes made to ...
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#81JavaEE使い方メモ（JPA その1 - 基本） - Qiita
EntityManager #remove(Object) で、指定したオブジェクトに対応するレコードをテーブルから削除する。 レコードの更新. HelloJpaEjb.java.
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#82Hibernate 5 and JPA 2 - Persist, find, merge and remove ...
EntityManager #remove() → This method is used to remove an entity/object from a database. It will throw an exception if an entity already ...
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#83Master Hibernate and JPA with Spring Boot in 100 Steps [Video]
Step 12 - Entity Manager Methods - clear and detach. Get full access to Master Hibernate and JPA with Spring Boot in 100 Steps and 60K+ ...
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#84'detach'和'remove'entityManager的方法之间的区别| 经验摘录
如何解决《'detach'和'remove'entityManager的方法之间的区别》 经验，为你挑选了1个好方法。
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#85How do you solve a detached entity passed to persist?
What is persistent vs save in ...
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#86EntityManager entidades y estados (JPA II) - Arquitectura Java
remove (): Se encarga de pasar el estado de de un objeto de managed a removed eliminandolo de la base de datos. detach() :Se encarga de convertir ...
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#87How to enable/disable renderer of entity? - Unity Forum
try the new EntityManager. ... to the invisible and the entity holding it's renderer ,then remove the renderer SCD from the original entity.
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#88Beginning Java EE 7 - 第 218 頁 - Google 圖書結果
In the managed state, you can call the EntityManager.remove() method, ... the EntityManager.clear() or EntityManager.detach(customer) methods will clear the ...
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#89如果我们有session.evict（），为什么我们需要javax ...
EntityManager.detach（）和 ... remove() 标记要删除的持久实体，表示at 刷新时间hibernate将生成相应的 sql 删除言。 evict() 用于从内部缓存中删除 ...
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#90Beginning Java EE 6 with GlassFish 3 - 第 168 頁 - Google 圖書結果
In the managed state, you can call the EntityManager.remove() method, and the entity is deleted from the database and not managed anymore.
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#91ObjectContext.Detach(Object) Method (System.Data.Objects)
The following considerations apply when detaching objects: Detach only affects the specific object that is passed to the method. If the object being detached ...
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#92JPA thinks I'm deleting a detached object - C++ Environment ...
If you use an EntityManager with a transaction persistence context model outside of an active transaction, each method invocation creates a new persistence ...
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#93Enterprise JavaBeans 3.1: Developing Enterprise Java Components
In Chapter 9, we discussed how managed entity instances become detached from a ... id); entityManager.detach(employee); try { int numPhones = employee.
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#94無題
Nov 03, 2021 · To find entity by their ID, we use the EntityManager. ... saved before it can relate with other managed/detached objects (actually the MASTER ...
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#95無題
... the child collection on the parent side. clear(); // remove all children entityManager. setParent(parent); List children = new ArrayList(); children.
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#96Hibernate's persist(), save(), merge() and update() - Newsstellar
Updating a detached entity JPA's merge method Hibernate's update method Which ... for removal by calling the remove method on the EntityManager interface.
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