1. Hibernate - EhCache - Which region to Cache associations/sets/collections? stackoverflow.comI am a newcomer to hibernate. It would be great if someone could comment over the following query that i have: Say i have a parent class and each parent has multiple ... |
2. Caching and Associations forum.hibernate.orgHello, This is my first post here so if I'm missing anything out, please don't hesitate to let me know. For information, I've been reading the forums for a bit, along with the Persistence with Hibernate book so I do have some background information but I'm in no way very competent in this :) I'm using JBoss 5.1.0-GA along with the ... |
3. Where to Cache associations/sets/collections ?? forum.hibernate.orgQuote: If one of the regions gets updated then I guess that change wont be reflected in the other cache region? Is my understanding correct?? Yes. In practice it is indifferent in which regions you store entities or collections, but there's one particular think to pay attention: you should configure the regions in a way that entities do never expire before ... |
4. Can one-to-many associations be discovered from the cache forum.hibernate.orgYes, I have read the documentation and believe what I am asking is not possible. I was/am hoping that an explicit optimisation has been made for the case where an entire object graph is loaded. i.e. when Hibernate generates a where clause of "where 1=1" I believe it is a common requirement in n-tier deployments to cache all instances of a ... |
5. Caching associations with hibernate forum.hibernate.orgI'm using EHCache, and have trouble to get associations cached. #1 Given a simple schema EntityA (1...0,*) ->EntityB I did "from EntityA ea left join fetch ea.entityB where ea.id=10", and in my junit test, call session.clear(), then reload the EntityA with same id(10), trying to getEntityBs(), it always goes to db to do the retrieval. I've set the |
6. Caching a m:n associations with ECahe forum.hibernate.orgHi I have Hibernate 3.2 and using java 1.5 How I can chache a n:m (One person have many countries) association with ecache? Is this expedient? Some facts: Users can change associations (but rare) Users can change countries (very rare) What i must write in: country.hbm.xml person.hbm.xml ehcache.xml Criteria search.. ??? Thank you |
7. Cache one-to-one association from "mappedBy" side forum.hibernate.orgI'm wondering if there is a way to enable second-level cache to work for one-to-one association from "mappedBy" side (or non-owning side). Here is an example: Appliance and Service are zero/one-to-one relationship, with Service being the owning side and Appliance specifies "mappedBy" clause. Code snippet: @Entity(name="Appliance") @Cache(usage=CacheConcurrencyStrategy.READ_WRITE) public class ApplianceImpl { ... @OneToOne(targetEntity = ServiceImpl.class, cascade = { CascadeType.ALL }, mappedBy ... |