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June 11th 2010
- DataNucleus Access Platform 2.1.0 ("Thomson") is released.
DataNucleus Access Platform provides persistence and retrieval of Java objects to/from
a wide range of datastores including RDBMS, db4o, LDAP, XML, and Excel.
Version 2.1
includes the following changes over 2.1 M3
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Changed to use JDO3 jar
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Support for persistence to GoogleStorage
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Support for persistence of some Google Collections classes
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Added initial version of a generic query optimiser, removing redundant variable clauses
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Fix to JPA inheritance strategy "JOINED" when having subclasses with discriminator
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Fix to persist of new object with collection that contains detached objects
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Fix to persist of new object with related detached compound identity chain
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Optimise out some SCO collection operations such as add+delete of same object in succession
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Support persist of enums as arbitrary value
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JPA2 : Support for orphan removal
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JPA2 : Support for JPQL "INDEX" keyword
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RDBMS : Fix to setting of BLOB/CLOB on bidirectional relations for Oracle
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RDBMS : Fix to SQL table namer to allow for unioned statements when choosing table name
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RDBMS : Support for use of BoneCP connection pools
Version 2.1
includes the following major changes over 2.0
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Support for persistence to OOXML files
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Support for persistence to GoogleStorage
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Support for persistence for fields of some javax.time types
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Support for persistence for fields of some Google Collection types
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Changed to use rewritten JDOQL implementation for RDBMS by default. This makes many more
JDOQL statements runnable than were previously possible
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Uses JDO3 "final" jar
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Uses JPA2 "final" jar
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Supports full JPA2 definition of JPQL
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Supports JPA2 static metamodel creation
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Supports JPA2 orphan removal
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Support for embedded PC objects with Excel persistence
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Support for using spatial methods in queries with the new JDOQL implementation for RDBMS
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Support for BoneCP RDBMS connection pooling library
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Many bug fixes, and minor feature additions.
This release is downloadable under an Apache 2 license from the
DataNucleus community site.
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