Top "Persist" questions

Spark: Difference between Shuffle Write, Shuffle spill (memory), Shuffle spill (disk)?

I have the following spark job, trying to keep everything in memory: val myOutRDD = myInRDD.flatMap { fp => val tuple2…

apache-spark shuffle rdd persist

Doctrine2 - Get entity ID before flush

Is there any way to get an entity ID before the persist/flush? I mean: $entity = new PointData(); $form = $this-&…

doctrine-orm entity flush persist

JPA Cascade Persist Error

I have a One-to-Many relationship: A ProductCategory can contains many Product. This is the code: @Entity public class Product implements …

jpa cascade persist

Stop Hibernate from updating collections when they have not changed

I have two entity beans defined as follows (unrelated stuff removed): @Entity @Table(...) public class MasterItem implements java.io.Serializable { …

hibernate collections persist

Persist in memory not working in Spark

I am trying the persist feature in Spark to persist the data in memory and do computations on it. I …

apache-spark persist

Hibernate Cascade PERSIST

I have a general question about Hibernate that I'm batteling with. I have class A and class B, where B …

hibernate jpa cascade persist

Spring + Hibernate: transaction commits but data is not persisted

I'm using the following service-layer class that implements Hibernate persistence: public class AccountsManagerImpl implements IAccountsManager { private static Logger log = LoggerFactory.…

hibernate spring persist

Symfony2 and Doctrine $em->persist VS $em->merge

Hi there I've got a quick question regarding Doctrine and the difference between merge() and persist() I have a NewsBuilder …

symfony merge doctrine persist

Detecting page unload in angularjs

I have a javascript object which I need global to my angularjs application. When the application is about to be …

angularjs global-variables onbeforeunload persist rootscope

Spring transactional context doesn't persist data

I know that my problem is a common problem, but I've checked a lot of questions here, checked Spring documentation …

spring jpa applicationcontext transactional persist