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Jena 2.4 has been released ! ×òÌìÔçÉÏÊÕµ½µÄÓʼþ£¬jena2.4 ·¢²¼£¬ÓʼþÄÚÈÝÈçÏ£º Jena 2.4 has been released: http://prdownloads.sourceforge.net/jena/Jena-2.4.zip Also available at the Jena User Conference : http://jena.hpl.hp.com/juc2006/ == In this release: Jena 2.4 introduces Assemblers (doc/assembler/assembler-howto.html), the replacement for ModelSpecs. Assemblers allow Jena models to be constructed from RDF descriptions. Model components (eg database connections, reasoners, sub-models, prefix mappings) can also be described. The mechanism for mapping from the descriptions to the Java objects is generalised and user-extensible. Both Joseki3 and Eyeball2 use the assembler mechanism as part of their configuation control. ModelSpecs will be deprecated in future releases of Jena. Support for HSQLDB http://hsqldb.org/ has been added.   This is a small, 100% Java database engine that can be used to give persistence to Jena models. Support for MS SQL Server has been added to the main codebase, including use with MS SQL Server 2005 Express SP1. Various minor bug fixes. ==== Notes == JAR file changes:     Added:    wstx-asl-2.8.jar               json.jar               iri.jar     Removed:  stax-1.1.1-dev.jar               jakarta-oro-2.0.8.jar                == N3 and Turtle The syntax form  2.3  (that is, an unquoted number with a decimal point) is now interpreted as being an XSD decimal, not and XSD double.  This change is inline with changes to N3 (cwm) and Turtle definitions and is the same as SPARQL. 2.3e0 remains an XSD double. == SPARQL and RDQL The SPARQL engine is upgraded to version 1.3. The old RDQL API is deprecated - applications should migrate to the package "com.hp.hpl.jena.query" == MySQL The reading of long literals has been fixed and applications can now safely use the 3.1 series JDBC drivers.  There is no implications on database schema. Note that the 5.0.0-beta JDBC driver has a concurrency problems (MySQL tracker 19416) although only in unusual situations with Jena. Setting the "query only asserted" option enables use of the 5.0.0-beta driver if necessary.    Êղؠ  ·ÖÏí   ¶¥(0)