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Revamped blog
Welcome to the newly revamped Hibernate and friends blog.
As you can see, we made it look like hibernate.org and we took the opportunity to clean up the tags to make them more useful. But we had other reasons to migrate.
Hibernate Branches and Releases
Hibernate has moved to Git (hosted on GitHub) for source control. That has been well documented. I wanted describe the approach Hibernate takes to branching, versioning and releasing as it is something that has come up a number of times, even prior to the move to Git.
Hibernate + Gradle Pointers
In Hibernate there is a particular branch of logic where we need to parse and validate an org.xml.sax.InputSource that might represent either a Hibernate mapping (hbm.xml) file, a 1.0-compliant orm.xml file or a 2.0-compliant orm.xml file. Now currently Hibernate mapping files are defined by a DTD and both versions of the orm.xml files by an XSD. Currently the code builds a SAXReader with DTD and Schema validation enabled and tries to read in the source. It first maps Schema validation to the 2.0 version of the XSD; if an error occurs it then tries re-parsing mapping Schema validation to 1.0 version of the XSD.
The JPA 2 metamodel is the cornerstone of type-safe criteria queries in JPA 2. The generated classes allow you to refer to entity properties using static field references, instead of strings. (A metamodel class is the fully-qualified class name of the entity class it matches followed by an underscore (_)).
The goal of this blog post is to walk you through an Java EE 6 application from a simple, static
web page until we have a full blown stack that consist of the stuff in the list below. I'm calling this
stack Summer
because after a long, hard winter Spring may be nice but boy, wait until Summer kicks in ;-)
As a follow up to http://in.relation.to/Bloggers/SimultaneouslySupportingJDBC3AndJDBC4WithMaven, I wanted to point out that I uploaded some example projects to the design discussion. There are 2 different approaches as Maven projects and one Gradle project.
Per HHH-2412 and its design discussion I have been working on supporting JDBC4 in Hibernate. Initially I had planned on adding this in 3.6, but now leaning toward 3.5 Anyway, as outlined on the design wiki, I initially thought to add this support as separate modules. However, I quickly came to the realization that using separate modules would actually require users make an explicit choice wrt an extra
jar. Especially considering that I could make Hibernate code make this determination programatically, I really did not like that aspect to using modules here. So I started looking for alternatives.
