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Catching exceptions from online backup

); backupQuery.setParameter("start", false);     Thread backupThread = backupQuery.getSingleResult ... .createQuery("objectdb backup", Thread.class);     backupQuery.setParameter("target", "/someNotExistingPath/withoutCreateAccess");     backupQuery.setParameter("name", "20231012");     backupQuery

Possible issue with timestamps

(2012, Calendar.MARCH, 29, 0, 0);         query.setParameter("startdate", startDate);         Calendar endDate = new GregorianCalendar(2012, Calendar.MARCH, 29, 1, 0);         query.setParameter ... (2012, Calendar.MARCH, 29, 11, 0);         query.setParameter("startdate", startDate

JPA JPQL WHERE clause for IN :variable not working if variable is a list of Enums

:     public enum MyEnumType { VALUE1, VALUE2, VALUE3, VALUE4 } and I call:     query.setParameter ... ) OR (enumField = :enumField2)" with:     query.setParameter("enumField1", MyEnumType.VALUE1);     query.setParameter("enumField2", MyEnumType.VALUE2); Then the matching objects are returned. I

Query results are not up to date for entities, not primitives

"      + " WHERE person.personID == :personID")   .setParameter(     "personCode",     personData       .getPersonCode())   .setParameter(     "personName",     personData       .getPersonName())   .setParameter(     "personEmail",     personData       .getPersonEmail())   .setParameter(     "personID

Problem of query With an aggregate function

')"); listClassRepHost.setParameter("host",choix.getHost() ); listClassRepHost.setParameter("startDate", convert.convertDateTime(choix.getStartdate()) ); listClassRepHost.setParameter("endDate

General Performance Issues Illustrated with a Specific Method

(); if (paramValue instanceof Date) { qry.setParameter(paramName, (Date) paramValue, TemporalType.DATE); } else { qry.setParameter(paramName, paramValue

Strange behaviour with ORDER BY and IN

Location l where l.id IN :ids order by l.id desc", Location.class)             .setParameter("ids ... )             .setParameter("towns", locations.stream().map(l -> l.getTown()).collect(Collectors.toList ... ", Location.class)             .setParameter("towns", locations.stream().map(l -> l.getTown

Geospatial functions

",             Location.class);         List<Location> resultList = query             .setParameter("latitude", location.getLatitude())             .setParameter("longitude", location.getLongitude())             .setParameter("radius", radius)             .getResultList();         System.out.println

user defined backup file

: backupQuery.setParameter("targetfile", new java.io.File("/User/Backup/test.objectdb ... .setParameter("targetdir", new java.io.File("/User/Backup/")); wich should create a backupfile ... .setParameter("target", "/User");     backupQuery.setParameter("name", "Backup"); backupQuery

Update query bug

"); query.setParameter("code", personalCode); List<List<Transport>> list = query.getResultList ... SET p.transports = :list WHERE p.personalCode = :code", Person.class); query2.setParameter("list", list); query2.setParameter("code", personalCode); query2.executeUpdate

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

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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