1. Question on Second Level Caching forum.hibernate.orgDoes Second Level Caching work on inserts? Specifically, does Hibernate put the newly inserted record into the Second Level Cache upon successful insertion or the record or completion of transaction? I have a situation where I am storing a object graph in one MDB, and would like to keep the data around after insertion, to be retreived by a second MDB ... |
2. hibernate refuses to use second level cache forum.hibernate.org |
3. Notification from Second-Level cache forum.hibernate.org |
4. Problem using second level cache when upgrading to 3.2 forum.hibernate.orgHibernate version: 3.2 Name and version of the database you are using: MySql I use Spring 2.0 and updated from Hibernate 3.1 to Hibernate 3.2 today. An application running in Tomcat worked just fine when I was using Hibernate 3.1, however using Hibernate 3.2 I get this message in Tomcat: [org.springframework.web.context.ContextLoader]: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' ... |
5. How "intelligent" is second level caching? forum.hibernate.orgHaving a play around with Hibernate 3.2.0 and the second level caching. My question is: How "intelligent" is this caching? I don't mean smart caching as in it know of the majority of the cache hits, etc. I'm after something like Hibernate being able to detect changes made on the database and then update the cache accordingly. Typical scenario would be ... |
6. one-to-one and second level cache forum.hibernate.orgHibernate version: 3.1.3 (but I checked the source and it's the same for 3.2.1) In our code, we have many one-to-one relationships like the one below between Person and User. We found that whenever a Person object was loaded Hibernate always loaded the corresponding User object from the database (expected behavior) and did not load the User object from the second ... |
7. NonUniqueObjectException when using second-level cache forum.hibernate.orgCode: public class B { private A a1; private A a2; public void setA1(A a) { this.a1 = a; } public void setA2(A a) { this.a2 = a; } } I fetch an instance of class A with id of 1 from a hibernate session then close the session. I store the fetched ... |
8. Second level cache question forum.hibernate.orgHibernate version: 3.2.1 JBossCache version: 1.4.1.CR1 My application is really simple and work for all CRUD operations. I want to configure a second level cache (with JBossCache provider) in asynchronous replication mode. Hibernate configuration: - hibernate.cache.provider_class=org.hibernate.cache.OptimisticTreeCacheProvider - objects are cached in transactional mode ( |
9. Does JPA have second-level caching support? forum.hibernate.orgHow can I evict some entity from 2nd Level Cache using JPA + Hibernate? Is there any method as below? "For the second-level cache, there are methods defined on SessionFactory for evicting the cached state of an instance, entire class, collection instance or entire collection role. sessionFactory.evict(Cat.class, catId); //evict a particular Cat sessionFactory.evict(Cat.class); //evict all Cats sessionFactory.evictCollection("Cat.kittens", catId); //evict a particular ... |
10. Are there limitations to second level cache? forum.hibernate.org |
11. Hibernate Second Level Cache to increase perfomance forum.hibernate.orgI have a h:selectOneMenu dropdown which performs CRUD operation. The dropdown list has a value "New" which allows the users to enter new values into other form fields thereby performing Create/Insert operation When users pick other values from the dropdown list it dynamically populates other fields in the form thereby facilitating Update/Delete operation. The problem is whenever i pick a different ... |
12. How intelligent is the second level cache forum.hibernate.orgHi, I am using the latest hibernate version and have EHCache configured as second level cache. I have an object class Person that has a colleciton of Pet objects. Now say I have a person instance "John" that has a pet "wauwau". If I save the object "John" to the database, the whole object tree is put into the second level ... |
13. Hibernate second level cache forum.hibernate.org |
14. WeakHasMap and Second Level Cache forum.hibernate.org |
15. Second Level Cache functionality confirmation forum.hibernate.orgConsider two tables Customer and Items; On the Customer entity I enabled second level cache for getItems(); Can any one please confirm when will the cached set of Items for Customer be removed from the cache. (1) When a new Item is added or ant existing Item is updated. (2) When a new Item is added and the new Item is ... |
16. Hibernate First Level and Second Level Caching forum.hibernate.orgI am a newbie to hibernate framework as a whole. I have a requirement to redirect the hibernate caching mechanism into a subframework. I have written custom cache providers for the first level and second level caching. The problem is: When the When the session factory is built then the FirstLevelCacheProviderWrapper is initialized instead of SecondLevelCacheProviderWrapper. Also the SecondLevelCacheProviderWrapper never ... |
17. Invalidating the second level cache (and other caches?) forum.hibernate.orgHello, We are going to use Hibernate on top of an existing REPLICATED database. This means that there will be data beeing added, changed and removed behind Hibernates back at least every night, sometimes also during ad hoc replication. This all works out nice, but I think we will have issues related to caching. When replicating this way, do we need ... |
18. Why the hibernate second level cache is not working?? forum.hibernate.orgI am using spring-hibernate for my DAO layer. I have configured a second level ehcache for the hibernate. The problem is when I hit the database and bring the records they are inserted into cache, but when i again execute the same method, the hibernate is not picking data from cache instead it is going to database. I have enabled the ... |
19. Problem enabling Second Level Cache forum.hibernate.orgHibernate version: 3.5 Full stack trace of any exception that occurs: java.lang.ClassNotFoundException: org.hibernate.transaction.JBossTransactionManagerLookup at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1362) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1208) at java.lang.ClassLoader.loadClassInternal(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100) at org.hibernate.transaction.TransactionManagerLookupFactory.getTransactionManagerLookup(TransactionManagerLookupFactory.java:41) at org.hibernate.transaction.JTATransactionFactory.configure(JTATransactionFactory.java:48) at org.hibernate.transaction.TransactionFactoryFactory.buildTransactionFactory(TransactionFactoryFactory.java:51) at org.hibernate.cfg.SettingsFactory.createTransactionFactory(SettingsFactory.java:418) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:138) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:753) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:691) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1390) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1359) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:540) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:485) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455) ... |
20. Unable to use second level cache forum.hibernate.orgI want to use second level cache for my entity, but in the application I am retrieving the entity by a field that is unique(setting name), not by the primary key. Problem is that the query does not use the cache. Hibernate version: [Version] Hibernate Annotations 3.3.0.GA [Environment] Hibernate 3.2.4.sp1 [Version] Hibernate EntityManager 3.3.1.GA I am using this code to query ... |
21. Hiberante second level cache forum.hibernate.org |
22. Second-Level Cache and PKs forum.hibernate.orgFirst of all: We are using Hibernate since almost 2 years and are very happy with it! We are now in the need of integrating a Master-Slave replication in our existing PostgreSQL server. For now we are still evaluating possible solutions and want to give SkyTools a try. Unfortunately SkyTools does not work with tables, consisting of multi column primary keys. ... |
23. Second level cache fix? forum.hibernate.org |
24. Need help understanding second-level cache statistics forum.hibernate.orgHibernate version: 3.2 Name and version of the database you are using: Oracle 10g We're logging second-level cache statistics in order to fine-tune our cache configuration. The statistics we're logging for each cache region are: number of objects it memory (and percent of capacity), hit count, miss count, are put count. In a number of cases, we're seeing a miss count ... |
25. Second level cache not in effect? forum.hibernate.orgWe have several complex object graphs. In a lot of cases, we relate 1:1 and 1:M objects using property-ref's. Alas, this causes Hibernate to not use the second level cache, causing horrible performance (tons of SQL statements are generated). Various fetch-depth strategies have been tried, but increasing this to much have other negative performance effects :-( Any way to make property-ref ... |
26. Second level caching in Hibernate: when it works? forum.hibernate.org |
27. Second Level Cache Document forum.hibernate.org |
28. Problem with 2nd level cache eviction - and solution! forum.hibernate.orgOk, this was a weird problem, but I finally soved it and decided I should post it here for others to see and use. I am using ehcache for a simple 2nd level cache. In my application I noticed that the cache gets evicted, even for entities that are not updated and should be read only. I have created a test, ... |
29. hibernate second level cache question forum.hibernate.orgWill hibernate second level cache refresh itself if there is a change in the data of any of the database tables? I understand that the second level cache will not be used if i have a select query not based on primary key. How do i make use of the second level cache for custom queries? Example Table1 ID (Primary Key) ... |
30. Understanding Second Level Cache Behavior forum.hibernate.orgI am using Second Level Cache[OsCache] with hibrenate. Hibernate Ver: 3.0 OSCache Ver:2.1 It is set to expire after every 10000 seconds, 2.7 hours. This cache is marked as read-only as app. is never updating it. Now, I went ahead and updated the table and added a new row, hoping that this new value will be reflected , worsat case after ... |
31. Second-level Cache - Please help forum.hibernate.orgHello, I have a question regarding secondary cache: From my research, Hibernate caches objects in Secondary Cache using the "primary key" of the object as the key in the cache. My application retrieves data from the database using another column(i.e., non-primary key). Is there anyway to "configure/tell" Hibernate to use that non-primary key as the key in the cache. If there ... |
32. second level cache problem forum.hibernate.orgHibernate version: 3.2.4.sp1 JBoss version: 4.2.2 GA Name and version of the database: MySQL 5.0.51a Ok, first small description of domain objects. We are using 4 classes: Session, User, Member and Guest. Member and Guest extends User class. Definition of classes: Code: @Entity @Table(name = "session") @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE, include = "all") public class Session extends AbstractEntity { ... ... |
33. One-to-one and second level cache forum.hibernate.orgNewbie Joined: Wed Nov 12, 2008 5:45 pm Posts: 3 Database: MS SQL Server 2005 Hibernate version: 3.2.0 I'm having trouble getting my one-to-one associations to load correctly from Hibernate's second-level cache. I have one particular HQL query, the results of which I'm caching using the query cache, and all of my other entities are added/loaded from the cache correctly; it's ... |
34. Second level cache DetachedCriteria forum.hibernate.org@Entity @Table(name = "MNP_PROCESS_DEF", uniqueConstraints = { @UniqueConstraint(columnNames = { "NAME" }) }) @Cache(usage=CacheConcurrencyStrategy.READ_ONLY) public class ProcessDef { private Long id; private String name; @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "PROCESS_ID", nullable = false) public Long getId() { ... |
35. Looking for a Hibernate 2nd Level Caching Expert forum.hibernate.orgHi Everyone, We're in the process of adding some caching capabilities to our project and I was wondering if anyone here has any experience with Hibernate 2nd level caching. As you all know, there are way too many options out there and I'm not sure what's the best route to go. We're looking for someone who's been through the trenches and ... |
36. How can I clean second level cache? forum.hibernate.org |
37. Hibernate second-level cache (ehcache) problem forum.hibernate.orgPage 1 of 1 [ 1 post ] Previous topic | Next topic Author Message renato.mariani@travelport Post subject: Hibernate second-level cache (ehcache) problem Posted: Fri Feb 27, 2009 6:30 am Newbie Joined: Wed Dec 17, 2008 7:55 am Posts: 3 Location: Rome Italy My application consits of mule esb, Hibernate3 (ehcache ... |
38. Understanding 2nd level cache forum.hibernate.orgIf I use session.getObject (MyClass.class, myid), then hibernate will use the 2nd level cache with no hit to the database. However, if I use a HQL query "from MyClass where id in (:idList)" then it will always hit the database. Is there a way with an idList to have the ability for hibernate to use the 2nd level cache instead of ... |
39. Second-level cache problem with Hibernate/JPA forum.hibernate.orgNewbie Joined: Thu Dec 29, 2005 6:14 am Posts: 2 Location: France - Aquitaine Hello, We use second-level cache JPA/Hibernate in our application but it seems that we have problems. When we call the DAO many times from a test class, the first call retrieve data from DB, the second call retrieve data from the cache (see the logs extract) but ... |
40. Hibernate second-level cache in orm.xml forum.hibernate.orgHello, Having been googling for hours, I realize that users can use either xml file(orm.xml, I suppose?) or annotations in JPA, or both of them at the same time. I'm i correct? So, My project use the second-level cache, which is not in the JPA specification. And I use annotations like: @org.hibernate.annotations.Cache(usage = org.hibernate.annotations.CacheConcurrencyStrategy.READ_WRITE ) for each entities. However, I guess ... |
41. First and second level caching forum.hibernate.org |
42. ObjectNotFoundException in second level cache forum.hibernate.org |
43. Hibernate Second level Cache < |
44. Second Level Cache is not happening forum.hibernate.orgNewbie Joined: Tue Jul 28, 2009 6:55 am Posts: 1 I enabled the second level cache in my application and configured the read-only startegy for two objects(FieldMetaData and FiledValidatorMetaData) which are having parent-child relation ship.I followed the below steps to enable the caching 1. Enabled the second-level caching and also specified cache provider in the hibernate.cfg.xml. 2.Added the below entry in ... |
45. What second level cache is useful for? forum.hibernate.orgNow, when I know how to use the Hibernate Second Level Cache, I am trying to figure out why or when I have to use it in my web application. When I retrieve an object from a database, it resides in memory until there is at least one active reference to it around. If I want it to remain in memory ... |
46. How to set maximum expiry to 2nd level cache forum.hibernate.orgI am using query caching in my application. I have a requirement in which the data will be modified only once in a year. I am using syscach. |