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April 26th 2010
- DataNucleus Access Platform 2.1 ("Thomson") Milestone 2 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 Milestone 2
includes the following changes
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Add ability to skip the check on unused input parameters to queries
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Fix issue with detachment when finding an object already detached but not far enough
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Add support for compilation of queries with parameters in subqueries linking back to the main query
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Fix to L2 caching of StringBuffer fields to cache a copy
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Fix to handle input query with special characters (tab, eol, etc)
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Extend query compilation to store whether the query result is distinct
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Support specification of interface fields where there isn't currently an available implementation
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Fix to use of dynamic fetch groups in multiple threads
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Fix to support non-standard SQL statements (stored procs, statements not starting with
SELECT/INSERT/UPDATE/MERGE/DELETE)
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Fix to the query in-memory evaluator to support aggregate names in upper or lower case
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Fix to a couple of situations where a versioned object can be returned to the user without
the version set
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Fix to reset the version of an object on rollback()
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Fix to SCOListIterator
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RDBMS : Fix to generation of indexes for reference fields when having a FK per implementation
so that the index is created for the implementations FK only
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RDBMS : Fix JDOQL2 to not select CLOB fields when using UNION or DISTINCT for Derby
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RDBMS : Fix JDOQL2 to add parentheses around ORed clauses
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RDBMS : Fix JDOQL2 to pick the correct statement when using methods in subqueries
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RDBMS : Fix JDOQL2 "alpha-namer" to handle more than 26 table groups
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RDBMS : Fix JDOQL2 to handle comparisons of interface field with an implementation
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RDBMS : Support use of CHECK constraint when persisting boolean as numeric
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RDBMS : Change HSQLDB use of LIMIT to append to the end of the statement
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RDBMS : Support for use of SQLXML type with DB2 (contrib)
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RDBMS : Fix to JDOQL2 for use of input parameters with multiple columns
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JPA : Add support for JPQL "case" expressions
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JPA : Add support for generation of JPA2 static metamodel classes
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JPA : Change to handling of "columnDefinition" to expect the type to be included
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Enhancer : when using JDK1.6 and having the enhancer in the CLASSPATH default to not enabling
the annotation processor to enhance the class(es) being compiled
This release is downloadable under an Apache 2 license from the
DataNucleus community site.
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