The package.jdo file declares custom-fetch-groups on bids, item and seller fields in class JDOAuction and buyer field in class JDOBid. It also explicitly defines the table and column names for the persistent classes and fields. The com.middleware_company.torpedo.auction.AuctionServiceBean is changed to allow using hollow PersistenceCapable instances in placeBid and place2Bids tests, and to invoke getDetailAuction in test listAuction. Class com.middleware_company.torpedo.auction.Persistence adds method getDetailAuction, which is overridden in com.middleware-company.torpedo.auction.jdo.Persistence. The submission provides an alternate JDO standard implementation of com.middleware_company.torpedo.auction.jdo.Persistence.java Class com.middleware_company.torpedo.auction.jdo.JDOBid is changed, to allow creation of hollow JDOBid instance(see constructor). It binds fetch groups to current PersistenceManager to produce best SQL statements, depending on the testcase. Using hollow instances to bypass DB roundtrip comes with following drawbacks:

if retain values is set to true the objects (JDOAuction/JDOUser) after commit will not hold proper collecions of bids, in case the were loaded by

L2 cache will not be properly updated, thus in such scenario it must be disabled.

if dedication version information (column) is present in (JDOAuction/JDOUser) the test will not perform as expected, thus Optimistic transaction violations can't be detected.

more or less the above holds true for all JDO implementations.

A fixed p6spy class com.p6spy.engine.spy.P6ResultSet is also provided to properly bind and return correct results from the underlying result set(not all data types are covered, though). The JCredo-specific table 'RFLX_CLASS_MAPPING' was explicitly excluded in spy.properties as non-relevant to the tests since it's being loaded on JCredo startup only.

Riflexo SRL
jcredo@riflexo.com
www.riflexo.com

The number of database hits required to accomplish the operation is given. Following the link provides raw results, SQL and additional operation specific configuration information and analysis.