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From Aristedes Maniatis <>
Subject Cayenne 3.0 milestone 3 released
Date Mon, 04 Feb 2008 13:45:05 GMT
The Cayenne team is pleased to present the third milestone of Cayenne  
3. This is a development branch of Cayenne and still undergoing  
significant changes. A number of developers are using it in production  
systems, however if you want the most stable and tested version of  
Cayenne you should use version 1.x or 2.x which have a proven track  
record and are widely used in deployment.

Release Download Link:

This milestone release adds some exciting new features, including  
enhancements to the Cayenne modeler for lifecycle listeners and  
callbacks and the ability to merge changes to the model back to the  
database, extensive new work toward full JPA compliance, updates to  
cgen and the templates, and much more.

This release requires Java 5 as a minimum. The decision to change the  
required JDK was made after a poll of users revealed no substantial  
need for Java 1.4 and plenty of benefits in moving forward. Generics  
are only partially completed in the public API at this time and we  
continue to try and balance the opportunities and headaches of a clean  
generics interface.

All feedback, bug reports or feature requests are welcome and there is  
still time for new features to be added before 3.0 final release. We  
encourage you to test it in your application and report back any  
issues you might have so they can be addressed. Upgrade notes can be  
found here:

Changes/New Features Since M2:

* CAY-263 cdbgen (DbGeneratorTask) must support classpath and  
* CAY-329 Long vs. Integer PK
* CAY-716 DataContext.rollbackChangesLocally() is not implemented for  
nested DataContexts
* CAY-735 Embeddable class support in the package
* CAY-736 Embeddable class support by Cayenne runtime
* CAY-879 Storing lifecycle listeners and callbacks in the *.map.xml  
and loading them back
* CAY-884 Add support for H2 Database
* CAY-885 merge changes between model and db
* CAY-900 Create CayenneModeler Swing UI for managing callbacks and  
lifecycle listeners
* CAY-903 Support primitive types in DataObjects
* CAY-904 Switch cayenne to Java 5: merge cayenne-jdk1.4-unpublished  
to cayenne-jdk1.5-unpublished
* CAY-916 Ordering should be able to ignore paths with null elements
* CAY-918 An exception during in-memory sorting of IncrementalFaultList
* CAY-921 Remove DerivedDbEntity support from Cayenne
* CAY-927 Switch to version 1.2 as default generation mechanism ,  
deprecate 1.1 generator
* CAY-931 Enable revert action even for projects that are not modified
* CAY-933 Embeddable classes - support class generation
* CAY-936 Update Velocity templates for generics.
* CAY-939 Add a means of updating custom superclass for all client  
* CAY-945 PropertyUtils support for "compiled" property access
* CAY-946 JPA: property-based access to persistent objects
* CAY-948 Implement flattened attributes in Cayenne
* CAY-949 Factory for lifecycle listeners
* CAY-950 Look up callback methods on listener superclasses
* CAY-953 JPA: Single Table inheritance
* CAY-954 EJBQL Query: Support for single table inheritance
* CAY-956 Converter between Expression and EJBQL Expression

Bug fixes since M2:

* CAY-882 Configuration shutdown hook thread may lead to memory leaks
* CAY-887 CM Usability:Recent Files list shold be longer
* CAY-899 Default POST_LOAD callbacks break aggregate queries
* CAY-913 ToMany Map relationships cause ClassCastExceptions on commit  
when the source is Fault
* CAY-914 cdataport classloader trouble
* CAY-920 ClassCastException when processing delete rules for Map  
* CAY-924 Update CayenneModeler for OS X Leopard
* CAY-926 Refactoring class generator classes
* CAY-932 Cancel doesn't cancel when quitting CM with a modified model
* CAY-967 Caching doesn't work for paginated queries
* CAY-974 Subquery EJBQL returns wrong entity in the result
* CAY-976 EntityResolver Fault dependency leads to ClassNotFound on  
the ROP client

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