|
DataNucleus AccessPlatform version 2.2 extends the 2.1 capabilities aiming for increased
stability, performance, flexibility and capabilities.
Below are some of the new features you can find in DataNucleus AccessPlatform 2.2.
-
Addition of UUID value generator
-
Add ability to not validate objects found in the cache when searching for a particular object
-
Major changes to L2 caching meaning that fields are often loaded from the cache rather than
datastore now
-
Ability to configure (by metadata) classes to be auto-pinned in the L2 cache
-
Extensions to "Managed Relations" handling many more situations
-
JDO : Support for specifying the position of a column
-
JDO : Support for specifying the allocation size and initial value of a sequence
-
JDO : Provision of a typesafe refactor friendly query API
-
JDO : Support for bulk update/
delete for JDOQL (DataNucleus extension)
-
JPA : Separate jar with annotation processor for JPA Criteria queries
-
JPA : Add support for fetch plans/groups (DataNucleus extension)
-
RDBMS : Ability to use JDOQL queries over interfaces
-
RDBMS : Support for N-1 unidirectional join table relation
-
RDBMS : Include fallback (DBCP) connection pool for JDK1.6 usage when nothing specified
-
RDBMS : Dropped support for legacy JDOQL implementation, and implementation override mechanism
-
RDBMS : Option on 1-1 relation to fetch FK only and not join (performance)
-
RDBMS : Improvements to memory handling when running queries with defined ranges and where the
datastore cannot handle range restriction directly
-
RDBMS : Support for maps with embedded keys/values and the value/key being a field of the
embedded key/value. Also now supports default definition of embedded key/value for a map.
-
RDBMS : Add ability to not run queries in separate thread
-
RDBMS : Add ability to specify different connection pooling for non-transactional connections
-
RDBMS : Add ability to retain the connection when using non-transactional read/write
-
RDBMS : Add ability to reuse columns for multiple fields of a class
-
RDBMS : Much improved support for handling of nulls in collections/maps/arrays
-
Excel : Support for cascade-delete
-
ODF : Support for cascade-delete
-
Add ability to not clear external cache at close of PMF/EMF
|
|
