Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.
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there will be a clear limit of 64KB. Thank you for this report. To avoid this error use page size of 64KB
[ObjectDB 2.5.5_05] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_05 (on Linux 3.13.0-29-generic). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: java.lang.NullPointerException: null java.lang
2.7.2_02. Thank you for this report. support Support it works, thanks hgzwicker Hans-Georg Zwicker
retrieval tas reports in log
entity object from within an active transaction. No EntityManager's method is invoked to report ... automatically JDOHelper.makeDirty(employee, "projects"); // reported as dirty em.getTransaction ... ) but it is possible to report a change explicitly by invoking the JDO's makeDirty method. Alternatively
, that if the Country and Capital objects are needed only for their names - the following report query
. BIRT Reports ObjectDB databases are valid BIRT data sources. BIRT data sets can be defined using JPA and JDO queries (JPQL, JDOQL).
The ObjectDB Doctor tool provides two related services: Diagnosis and validation of an ObjectDB database file Checks a given ObjectDB database file, verifies that it is healthy and valid, and if the file is not valid (it is corrupted), produces a detailed diagnosis report of all the errors. Repair
. The next step is using this data source to create a data set for the BIRT report.