Speedo is an open source implementation of the JDO (TM) 1.0.1 specification.
Speedo main benefits
Possible choice of optimistic or pessimistic transaction mode
Cache of persistent objects, with a choice of several replacement policies (LRU | MRU | FI
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Data prefetching at query evaluation time: later accesses to objects will not require any I/O to the data store
Management of relation ships (coherency management)
Able to create the SQL schema
Various identifier support (application (composite or single, SQL sequence, speedo)
Lot of types supported
Lot of databases supported (Oracle, MS SQL server, Mysql, Postgres, ...)
Through JORM and MEDOR, access to legacy relational databases, as well as any other data store supported by JORM and MEDOR
Soon on JDO 2.0 ...
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