About delete


Enhancer API (JDO 3.0)

One of the new features of JDO 3 is a standard API for enhancement. JDO implementations, including ObjectDB, define their own API for enhancement    ... edit delete support ...


Read only hint for query

Second thing after @FetchGroup I've found is read-only hint for EM. You can specify this hint to EM when executing query meaning that returned data will never be edited or persisted. My understanding of this is that each entity returned from query is in detached state as default state. query.setHint("odb.read-only", "true"); This could be useful in situation when you are sure, that you won't modify those entities - like listing entities, paging, logging, reporting. ... edit delete lwalkowski ...


Dynamic Metadata (JDO 3.0)

JDO 3 introduces the ability to specify metadata of persistable types dynamically. ObjectDB 2 supports specifying metadata by: JPA XML Mapping Metadata JPA Annotations JDO XML Metadata (e.g. package.jdo) JDO Annotations All these... edit delete support ...


New Web Application Tutorials

New ObjectDB/JPA tutorials have been published today: Eclipse/JPA Web Application Tutorial NetBeans/JPA Web Application Tutorial The new tutorials demonstrate how to build a simple database driven web application using ObjectDB and JPA. Understanding these tutorials requires some familiarity with basic concepts and principles of Java web applications, including Servlets, JSP and HTML.... edit delete support ...


Abiity to save queries in Explorer

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Git seems not to commit objectdb.conf

git version (Mac OS X) For some reason my Git seems to be "ignoring" (although not in .gitignore) the web/WEB-INF/objectdb.conf in a web app. I can't find anything about the .conf suffix being ignored. Has anybody noticed this and/or found a solution ? ... edit delete webel ...


New Tutorial: Using BIRT with ObjectDB/JPA

Version 2.2.7 of ObjectDB added support of report generation using the popular open source Business Intelligence and Reporting Tools (BIRT). The new Report Generation with BIRT and JPA tutorial provides step by step instructions on how to use BIRT to produce reports based on data in an ObjectDB database. ... edit delete support ...


How to avoid NULL values on Embedded entities

Hi there. I'm new on this. trying to learn. I'm trying to make a value non nulleable. So, when I try to upload to the DB this field as null, it give me an error. I tried this, but it didn't work: ... edit delete elnll002 ...



This is the event class used in life cycle event notifications.(Class of JDO)



... Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ... 2.2.4 Added support of JPA UPDATE and DELETE queries ( issue #11 ). Added support of pessimistic ...