1. Lazy initialization issue forum.hibernate.orgHi, I wish to retrieve a user record with all its associated order records by passing username and password parameters to the user class. As I have specified a set attribute with lazy=true, the issue I am having is where to place my Hibernate.Initialize line within the syntax. What I want to do is something like the following: Code: ... |
2. Lazy Initialization Exceptions ... What am I missing here: forum.hibernate.orgHibernate 3.0 MySQL I have the following mind numbingly simple code: Code: HibHelper.beginTransaction(); Session s = HibHelper.getSession(); Criteria c2 = s.createCriteria("core.User"); List l = c2.list(); ... |
3. outer join lazy initialization forum.hibernate.orgHello, I have 3 tables A --- one to many --- B ---one to many ---C (they are related by Set collection) I have the outer join turned off and lazy = true at global level. For specific instances however, I do need to load all the related collections B and C if I query for A. |
4. initialization of primitive id needed? forum.hibernate.orghello, I have a stupid question: I'm using an id of primitive type (long) using a sequence of oracle. I use the unsaved-value="-1" |
5. Hibernate3 and Annotation - lazy initialization problem forum.hibernate.orgHi! I was using H2 with spring and xdoclet machinery. It is ok, but new H3 and annotation looks so nice... and I decided to move my project to new libraries. so currentlyI'm using H3 with annotation (beta...) and spring 1.2. Everything is greate but... lazy-initialization. New Hibernate has default TRUE and I've got problems with it. I've got no hibernate-mapping ... |
6. Lazy Initialization not working on front-end forum.hibernate.orgHi I have this crazy problem. I'm using Hibernate with Weblogic 8.1. Lazy initialization is turned on. I have a simple bean that has a list of related objects within it. When I look up an object (using Criterias) and then do an Object.getRelatedObjects() call in my DAO layer, i get the related objects without a hitch. When I do the ... |
7. Property accessor and lazy initialization question forum.hibernate.org |
8. Bootstrapping hibernate initialization forum.hibernate.orgHello, Does anyone know of a mechanism within hibernate that would allow some type of callback to occur once all the mapping files have been read in, or are being read in? I need to know when a certain type of object has been read in so I can perform my own mapping within the application. I don't want to write ... |
9. AbstractPersistentCollection & Lazy Initialization forum.hibernate.orgHi, I've been experiencing lots of problems with lazy collections, as already stated in many posts in this forum. So I tried to isolate the focus of the problem, and arrived to this class, which has a method: Code: protected final void initialize(boolean writing) { if (!initialized) { ... |
10. Many-to-one initialization issues forum.hibernate.orgI am ready to bang my head against the wall as i do not understand why this is happening. I have to mapping files below representing and Entity object and a Release object. Entity has 1 to many relationship with Release. I am trying to do a query that loads an Entity by Id including all of the related many-to-one associations. ... |
11. Nested sets / Self-join collection initialization forum.hibernate.orgI have a company hierarchy of divisions represented as nested sets, stored in one self-joined table (HBM excerpt below). I want to retreive the hierarchy and serialize it to XML (to display in a web app via XSLT). I can get all the necessary data by doing one simple select that retreives all divisions of one company, and Hibernate should know ... |
12. Hibernate 3 initialization issues forum.hibernate.orgHello there! Since Hibernate 3 all associations are lazy This brings a bit of problem with lazy instatiation, I guess. Let's examine this example User car : Car (lazy) Car manufacturer: Manufacturer (lazy) Manufacturer id name Ok, So I load User and then Hibernate.Initialize(car); that's ok. So in my view tier: user.getCar().getManufacturer().getName() -> exception. Today on Hibernate 2 I have an ... |
13. Lazy initialization problem, I'm not sure... forum.hibernate.orgHello everyone, I posted a topic regarding a weird behavior with a property. I explained that if earlier in the code I made some call like System.out.println(obj.getForward()); the system worked perfectly, otherwise, my struts app would crash later on in a jsp because obj.getForward() returned null (where in fact It isn't null). I thought (and a reply came with the same ... |
14. Empty lazy collection initialization optimalization forum.hibernate.org |
15. How to define object/collection initialization order? forum.hibernate.orgHi, I have a strange initialization problem which I could pin down to the way how hibernate initializes objects and collections. Imagine the following simple classes: Code: class Parent { Long id; String name; HashSet childs; } and Code: class Child { Long id; String name; Parent parent; } ... |
16. Problem with lazing initialization. forum.hibernate.orgHi I'm getting the following error: could not initialize proxy - the owning Session was closed. Funny thing is i'm getting partially my data. Hibernate version: 3.0.5 Mapping documents: |
17. Cache initialization problem forum.hibernate.orgHibernate version: 3.0.5 I'm sometimes experiencing this problem during Hibernate init phase: Code: org.hibernate.HibernateException: Could not instantiate cache implementation at org.hibernate.cache.CacheFactory.createCache(CacheFactory.java:64) at org.hibernate.impl.SessionFactoryImpl. |
18. Concurrenct with Proxies / Lazy initialization forum.hibernate.orgHi I just would like to know whether the following approach in working with proxies/lazy initialization is correct/possible: 1. Persistent objects are loaded by a worker thread. Collections are lazy="true" 2. The loaded object is passed to a SWING user interface 3. The UI accesses the object 4. The object is passed back to the worker thread which takes care of ... |
19. Problem with lazy initialization forum.hibernate.orgI'm doing my first steps with Hibernate and came across a (beginner's?) problem which I was unable to solve. I reduced the problem to a tiny example to clarify the problem. The domain objects in this example are: - User - Role where the user has (or rather: must have) one role. The Hibernate Mappings look as follows: [User.hbm.xml] Code: |
20. multi-tier lazy initialization problem and sugg. strategies forum.hibernate.orgHello I've simple lazy initialization problem, but I wasn't able to find documentation about it. I've complex POJO model with lots of bidirect accosiations. My service layer returns partially initialized subsets of this complex graph of objects. System is multi-tiered and I'm not able to use open session strategy. Now I have this situation that other tier likes to marshal this ... |
21. Lazy Initialization forum.hibernate.orgIm using the Hibernate version 3.0.5 One of my mapping files is: |
22. Lazy initialization and Table per hierarchy forum.hibernate.orgAuthor Message gnsri Post subject: Lazy initialization and Table per hierarchy Posted: Thu Dec 08, 2005 5:44 pm Newbie Joined: Tue Feb 08, 2005 3:30 am Posts: 6 Location: Bangalore Hello there! I am trying to implement the "table per class hierarchy. I have a class and 3 subclasses of the classes. The parent class Code: public class Unit ... |
23. Lazy initialization of object graph with query forum.hibernate.orgHi, My goal is to initialize every item in a lazy collection and for each item in the collection I would like to fetch also a lazy association (a many-to-one association). E.g: Let A be the parent of my object graph. B is a collection in A (defined as lazy in its hbm file) and C is an object in B(i) ... |
24. Hibernate 3.1 Session Initialization Error forum.hibernate.orgProblem: I have an application that was working fine under "version 3.0.3 , 08. May 2005", and I have no code referencing net.sf.*. After updating libraries to version 3.1, I get an error when Hibernate is building it's session factory: "CGLIB Enhancement failed: gov.alaska.ezdoc.ContentObject java.lang.NoSuchMethodError: net.sf.cglib.proxy.Enhancer.setInterceptDuringConstruction(Z)V". This seems logical because I do not have hibernate2.jar in the classpath, but why is ... |
25. Lazy Initialization session.getPersistenceContext().contains forum.hibernate.orgNewbie Joined: Thu Sep 09, 2004 6:50 am Posts: 15 I have been using hibernate fro almost two years with great success. I use Spring's OpenSessionInView pattern and all works great. Now, all of a sudden, I am getting LazyInitializationExceptions on a particular query. I am querying for a list of Applications. Applications belong to a CommonApplicationForm. Each CommonApplicationForm has one ... |
26. Problems with lazy initialization forum.hibernate.orgI've still got a problem with a lazy initialization which I couldn't solve with the help of other topics on this subject. In my mapping file I've got a simple set-element: Code: |
27. Question on use of lazy initialization with One to Many forum.hibernate.org |
28. Lazy initialization exception occurs when lazy is set forum.hibernate.orgit is ORM , lazy initialization works fine only inside a session . its still a question mark on how to do it efficiently . as far as i came across , one way is to initialize the collections when u are using lazy=true, or use a query with eager fetch on the particular collection . i think DTOs may be ... |
29. QueryTranslatorImpl initialization forum.hibernate.org |
30. Association initialization error in open session forum.hibernate.orgAuthor Message timvogel Post subject: Association initialization error in open session Posted: Sat May 06, 2006 10:32 pm Beginner Joined: Sun Dec 21, 2003 11:19 pm Posts: 22 Location: Kentucky, USA I am having an issue with the initialization of an association in an open session. I am receiving an org.hibernate.LazyInitializationException: illegal access to loading collection. The explanation illegal ... |
31. Cloning an object with lazy initialization forum.hibernate.orgI know this problem probably in not concerned directly wil Hibernate, but it is still a weird problem: I wrote a method for making a deep copy on some object that holds a lot of objects under it. I make the deep copy by simply looping all objects, cloning them and setting ids to null. It used to work great, untill ... |
32. SAX Parser Initialization problem forum.hibernate.orgHi, I am running an application with hibernate on Eclipse platform. While testing with JUnit test case, I get an exception. I am using jdk1.5 and hibernate3. I am using MySQL database. I have included xml-apis.jar in the class path. Still it is giving the following exception: INFO: Configuration resource: /hibernate.cfg.xml Warning: Caught exception attempting to use SAX to load a ... |
33. Inefficient HashMap initialization forum.hibernate.orgHello, we have an entity which has a |
34. Hibernate Lazy initialization Exception forum.hibernate.org |
35. EhCache Initialization Exception forum.hibernate.orgThis is because of the file ehcache-failsafe.xml which ahs the following entry |
36. Lazy initialization does not work for simple associations forum.hibernate.orgHibernate version: 3.1.2 Name and version of the database you are using: Oracle 9i Class A has a one to many association with class B. Class B has a byte array property byte[] data ( hibernate-type : HibernateByteBlobType, sql-type: blob). When class A accesses the elements of the collection(containing class B), i dont want the byte array to be initialized. Setting ... |
37. Performance tips on Caching, data initialization .. forum.hibernate.org400 concurrent users accessing the same data (very large) where we load in the memory at initialization time, users may very frequently update the data too. How can I make this scale very well with Hibernate using Caching, and what type? -To initialize the data at startup, initialize method is used very often basically everywhere. (Better ways to do ... |
38. hibernate initialization time (slow?) forum.hibernate.orgNewbie Joined: Thu Aug 24, 2006 4:18 pm Posts: 3 Hi I'm using hibernate 3.2 rc2 and I'm having some trouble with hibernate initialization time. I've made some searches here at the forum and they helped me to decrease the mappings reading time. Every Mapped Class points to the Hibernte 3.0 DTD. I've also switched the CGLIB reflection optimizer off but ... |
39. ClassCastException with CGLIB Lazy Initialization forum.hibernate.orgNewbie Joined: Mon Sep 18, 2006 10:45 am Posts: 7 I am getting a ClassCastException thrown when calling a method that simply returns 'this'. The object is being proxied with the CGLIBLazyInitializer and is loaded as an item in a collection where the many end of the one to many association is the supertype of the type of the object in ... |
40. Extra lazy initialization of a collection by query? forum.hibernate.orgI found some similar posts regarding this issue but no satisfatory answers. Is it possible to return an extra-lazy collection from a query? My use case is e-mails. I may want to show the number of, say, new messages from my contact list upon login. However, I have no need at that point to show any actual message subject, body, etc. ... |
41. array initialization in Hibernate 3 forum.hibernate.orgThis was accidentially posted on NHibernate forum, but it should have been on Hibernate users form: I have a question concerning how and where to initialize an array in Hibernate 3. I will have an array of objects instead of java collection interfaces. Somehow I got a very huge array, with the expected not-null elements at the end of the array. ... |
42. many-to-one lazy initialization forum.hibernate.org |
43. Lazy Initialization doesn't work forum.hibernate.orgHi, I'm trying to the get a Set lazily initialized, but it doesn't work. Team t = (Team)session.get("Team", new Integer(1)); A team concists of games. Despite not writing t.getGames() there are games asscociated to the instance (I see this in hibernate output logs and the fact I can reference it even when the session is closed) |
44. "dynamic" initialization of collections forum.hibernate.orgHibernate version: 3.2 Hi, I have an object with about 10 or so collections (set), which are mapped with fetch="select" and lazy="true". Problem: when I use session.get or sesion.load I want to initialize all the collections exactly as if lazy="false" in the mapping, without having to "hardcode" the property names. My current understanding is: obj = session.get(someclass) Hibernate.initialize(obj.getSet1()) - now iterate ... |
45. Bulk initialization of collections forum.hibernate.orgHello all, in a product export scenario, I need to initialize products from a query result set with a large amount of rows (say up to 100.000). Products have 6 different collections of dependent objects each, so I cannot use join fetching to initialize the collections (cartesian product). So hibernate initializes collections per product with individual selects, which is way too ... |
46. Collection initialization for nested sets forum.hibernate.orgI am building an application that uses a nested set database-schema similar to the one I found in the extended CaveatEmptor example. So I have a bidirectional parent/children relation, and additional rows for left/right-numbers. Now I want to use one of the big advantages of the nested set model and load a whole subtree with one query. The Nested-Set-Query is quite ... |
47. lazy initialization in hibernate forum.hibernate.orgHi, just have a question related to lazy load. I have a class, which has 1 set for relations among objects. when I load the class, I don't want to load the relation set. 1. when I do the update, do I have to load relation set. (I don't want to update relation set as well). e.g. loadMyClass(class, relationSetFlag = false); ... |
48. Understanding initialization forum.hibernate.orgI wish there was a FAQ somewhere that explained when objects were initialized. I am totally baffled as 90% of my objects always return true for isInitialized, then I have a few that return false. I am using some lazy collections, but it seems as if just asking isInitialized is causing them to be initialized? Furthermore, do I ask if my ... |
49. Problem forcing a fetch with Lazy Initialization and EJB3 forum.hibernate.orgI am having a problem with fetching data that was lazilly initialized Using Hibernate 3.2.2.ga A Contact "has an" Address. The getAddress in the Contact class is lazilly initialized. The way I understand this is that If I load the Contact, the Address will not be loaded. If I were to call the getAddress method explicitly, then I am expecting the ... |
50. Excessive SessionFactory memory usage after initialization forum.hibernate.org |
51. Lazy Initialization Error - Owning Session was Closed forum.hibernate.org |
52. Initialization of Sets forum.hibernate.orgHi, Does anybody know what is the "best practice" way of initializing elements in a Set. Scenario is that class contains a set which is to be used to display (just the first record) to the screen. However it is possible that this set may be empty and therefore when i go to access the first element using : setelements[0] the ... |
53. lazy initialization of LOBs forum.hibernate.orgHibernate version: 3.2 MySQL 5.0 Using Annotations to define data mapping I have a couple of entities that have LOB properties that can be very large (one BLOB and one CLOB). I expected that the data for these properties would not be initialized with the rest of the properties, but that a reference to the data would be available so it ... |
54. best way to do post-hibernate initialization? forum.hibernate.orgI want to do some further initialization of transient properties on my object after hibernate has hydrated it. What is the best approach for doing this? BTW, I know that doing the logic in a setter is a cleaner solution. Unfortunatley, I need properties to hold the data to appease xstream. Another approach would also be a custom xstream converter. ;^) ... |
55. many-to-one + lazy initialization + not-found forum.hibernate.orgHello all, After searching and reading so many posts here regarding the issue of many-to-one association + lazy initialization + not-found=ignore, I still can't understand if there is a solution for the problem. As I see it I have only 2 options: 1) suffer from unneeded queries to be run when hitting an non existing association. 2) removing the not-found=ignore, and ... |
56. JPA - Calling toString() triggers the proxy initialization forum.hibernate.orgHibernate: select order0_.id as id1_0_, order0_.xxx as xxx1_0_, order0_.yyy as yyy1_0_ from Order order0_ where ... |
57. Direct access to field doesn't trigger proxy initialization forum.hibernate.orgpublic class Order{ ... @Override public boolean equals(Object other) { System.out.println(((Order)other).description); // returns null if the 'other' is not initialized ... } } |
58. Data Initialization forum.hibernate.org |
59. Lazy initialization with JPA forum.hibernate.orgI am using Hibernate 3.0 with JPA and Spring 2.0. I am using annotations to declare transactions, e.g. @Transactional (propagation = Propagation.REQUIRED, readOnly = true) public Collection |
60. one-to-one lazy initialization doesn't work forum.hibernate.org |
61. Hibernate initialization issue forum.hibernate.orgHibernate version: 3.2 Hi, We are migrating our persistance layer from entity beans to hibernate . The current architecture uses custom assemblers to convert the persistance data pojos to business data pojos. The assemblers are referencing lazy proxy objects and throwing LazyInitExections. We do not want to change the fetch mode to load these objects as they are not used and ... |
62. table not found initialization error forum.hibernate.orgHi, I generated a set of tables using hbm2ddl and Hibernate annotations. Things had been working fine. I am trying to add another table. When I add the Hibernate annotations to my class to generate the new table, the SQL file looks fine and in fact the table is in the database (I am using Oracle 9i): SQL> descr INVOICE_GEN_BILLED_FE_MAP ; ... |
63. initialization process leads to Collection detected as dirty forum.hibernate.orgpublic Merchant findMerchantByMerchantId(final String merchantId) { Merchant merchant = (Merchant) getHibernateTemplate().execute( new HibernateCallback() { ... |
64. Control lazy initialization property forum.hibernate.orgHi All, All the mapping objects are specified by default as lazy=false in my hibernate association files. How to fetch only the parent object and to avoid associated child objects when the parent object is queried via code in DAO layer. Is there any property in hibernate to avoid immediate fetching during the query execution though the immediate fetching(ie lazy=false) is ... |
65. A goog way to avoid lazy initialization exception in EJB3 ? forum.hibernate.orgI use Hibernate3-based JPA and use staeless session beans for DAOs. Suppose that I have 2 tables: Category and Item (i.e. 1 category has many items and 1 item can belong to many categories). Until now I saw 2 ways to avoid lazy initialization exception: - @ManyToMany(fetch=FetchType.EAGER) - using FETCH JOIN: a guy in this company even wrote a bunch of ... |
66. Lazy Initialization Problem forum.hibernate.orgThe problem you are having is that you are obtaining your object within an open session, closing the session, and then trying to access the 'child-objects'. In order to access these child objects, it must either be done within an open Hibernate Session, or, you need to have the fetch type for the records set to eager. My suggestion is to ... |
67. Lazy Initialization Problem with Hibernate PersistentSet forum.hibernate.orgThe following is my code: Code: @SuppressWarnings("unchecked") public static void main(String[] args) { HibernateUtil.getSession(); List b = new ArrayList(); b.add("1"); ... |
68. Initialization of Collections forum.hibernate.orgHello All, I am using Hibernate 3.2.6 database: Postgres 8.2 We are using Hibernate in our 2-tier architecture ( A Swing App). And, my concern is initialization of Maps into Memory. I am using a Single-Session-perConversation pattern. A parent object has a huge collection (100,000+), and the first time I do a map.put on the PersistentMap, hibernate loads all the object ... |
69. error with lazy initialization forum.hibernate.orghi, I have a very simple code snippet. public List |
70. High memory usage on initialization forum.hibernate.orgHibernate version: Hibernate Core 3.3.1 / Hibernate Search 3.1.0 Hi. I'm facing a huge memory usage problem, so, I'm asking help on how to reduce the runtime memory taken by Hibernate. We have a web application which, on the previous version, with 63 tables, was taking initially 62M on tomcat. The new version has 142 tables (139 entities), and initially, it ... |
71. unidirectional many-to-many no lazy initialization forum.hibernate.orgIt probably has something to do with that there is a difference between collection initialization and proxy initialization. Setting |
72. Collection entity initialization forum.hibernate.orgpublic class Product { private String serialNumber; private Set parts = new HashSet(); public Set getParts() { return parts; } void setParts(Set parts) { this.parts = parts; } public String getSerialNumber() { return serialNumber; } void setSerialNumber(String ... |
73. How to implemnt Lazy initialization in Hibernate? forum.hibernate.orgWhen you need to then load your referencedImages, pass the imageSet back into your dao layer. And there you'll need to reassociate imageSet with another open session and then get those referencedImages. And if you're merely doing it immediately after your initial load like your example shows, why even set it to lazy = "true" |
74. Lazy Initialization Exception..Does not show up in unit test forum.hibernate.orgHi all, I am new to hibernate ad stuck up in LazyInitializationException I have a relationship like this: Organization { /**one-to-many*/ Set dept; // of type Departments } Departments{ /**many-to-one */ Organization organization /**many-to-one */ Activity activity; } Activity{ /** one-to-many */ set departments /**many-to-one*/ ActivityDetails details; } ActivityDetails { String venue; } All relations are non-lazy. Given an organization, I ... |