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public void save(ArrayList<Entity> entities) {
for (Entity entity : entities) {
getEntityManager().persist(entity);
}
}
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class EntityServiceBean implements EntityService {
@PersistenceContext(unitName = "mes.platform")
private EntityManager entityManager;
public EntityManager getEntityManager() {
return this.entityManager;
}
void setEntityManager(EntityManager entityManager) {
this.entityManager = entityManager;
}
@Override
public void saveList(ArrayList<Entity> entities) {
for (Entity entity : entities) {
save(entity);
}
}
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
private void save(Entity entity) {
entityManager.persist(entity);
}
@Stateless
@TransactionAttribute(TransactionAttributeType.REQUIRED_NEW)
2 再次该方法对外接口设置为1条的更新操作。
public void save(Entity entities) {
getEntityManager().persist(entity);
}
或者
SLSB事物
@Stateless
@TransactionAttribute(TransactionAttributeType.REQUIRED)
saveOne方法会在新创建的事务中执行
@TransactionAttribute(TransactionAttributeType.REQUIRED_NEW)
private void saveOne(Entity entities) {
getEntityManager().persist(entity);
}
save使用默认的require事务
public void save(ArrayList<Entity> entities) {
for (Entity entity : entities) {
saveOne(entity);
}
}
保证一条的更新操作是在新的一个事务。