collection is not associated with any session OK, I'm getting this a lot now, and I don't know what I am doing wrong. I am fetching a "parent" object with the following joins: {code}@OneToMany(mappedBy="report",fetch=FetchType.EAGER) @Fetc... 
Mapping Spatial Oracle type SDO_GEOMETRY to JGeometry After a lot of looking around and tons of false starts I've finally hit upon the ability to work with SDO_GEOMETRY Oracle spatial types. I can convert them within the Hibernate EJB3 framework to JGeometry Java types b... 
Mapping XML to Oracle XMLTYPE in IBM Webspshere platform Oracle XMLTYPE attribute type can be mapped to a W3C Document type representation. Hibernate's UserType mechanism allows to create vendor specific data types. There are certain points to consider when mapping an objec... Custom sequences Compatible with Hibernate 3. Written on June, 2005, by Pietro Polsinelli. If you have updated information, please feed this page (not the remarks below) or send me (mailto:ppolsinelli (at) open-lab (dot) com) infos to... Proxy Visitor Pattern Note: The explanation in the first paragraph is not entirely correct, better read the one in the "Performance" chapter of the reference documentation first. Anyone using Hibernate for any length of time has no doubt r... Batching and auto-evicting Criteria results First an example usage: Criteria criteria = getSession().createCriteria(Foo.class); criteria.add(...); criteria.setResultTransformer( &#... UserType for a byte[] identifier property Almost any Java type may be used as a generated Hibernate identifier. In this example we show how to use a byte array. Java arrays don't override equals() (which is required for Hibernate identifiers) so we must wrap... Configure Ehcache as a Second Level Cache Overview Terracotta Ehcache is a popular open source Java cache that can be used as a Hibernate second level cache. It can be used as a standalone second level cache, or can be configured for clustering t... 
Hibernate Core Migration Guide : 3.0 This document describes the changes between Hibernate 2.1 and Hibernate 3.0 that will affect existing applications, and mentions certain new features of Hibernate 3.0 that might be useful to existing applications.... 
Hibernate Core Migration Guide : 3.3 3.3 is the first release using Maven as the build tool and using the notion of modules. You may also want to look at the Hibernate Core Migration Guide : 3.2. Specific migration concerns include: ... Hibernate Core Migration Guide : 3.2 The main focus in Hibernate 3.2 is JPA support. You may want to browse the Hibernate Core Migration Guide : 3.1 first. Changes in this migration guide are classified into: API Changes (affecting appli... Hibernate Core Migration Guide : 3.1 Hibernate 3.1 is a relatively minor upgrade to Hibernate 3.0 with many new features. IN other words, we expect it to be a drop-in replacement for Hibernate 3.0. You should be able to upgrade to 3.1 by using the ... Annotation driven equals and hashCode Annotation driven equals and hashCodeThe following implementation of equals, hashcode and toString is using the concept of one or more business keys defined by annotations.The annotation @BusinessKey can be applied wi... Root Persistent Class Hibernate doesn't require that persistent classes extend a base class. That is not meant to imply that its necessarily a bad thing. You might like to consider defining a base class for your application's persistent cl... Bidirectional one-to-many with an indexed collection Hibernate 3 Hibernate 3 allows you to use indexed collections in a bidirectional association without workaround, just use this mapping: Parent <list inverse="false"/> </list> Child <many-to-one in... Mapping a Dynamic Proxy This page explains how to load and store instances that are wrapped with a JDK dynamic proxy. First, you need an interface: public interface FooInterface { public Long getId(); ... Why This Project Is Successful? Here's my thoughts upon what we did in terms of development practice that helped make this project so popular so quickly. rapid release schedule Regular file releases (even a few days from one version t... Non-transactional data access and the auto-commit mode (This is an excerpt of chapter 10 of the book Java Persistence with Hibernate. If you read this, you are probably one of the forum posters who asked the usual FAQs about the auto-commit mode.) Many DBMSs enable... Session handling with AOP The following example uses JBoss AOP to apply a custom interceptor to any Java method, in any runtime environment. This is a more flexible alternative to a servlet filter (i.e. the Open Session in View pattern)... Hibernate Aware Action In a simple web application, where the web tier has direct access to the database, it makes sense to define a persistence-aware superclass for actions that use Hibernate. The superclass should implement logging, excep...
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