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69

Index on values from a Map

Hi, is there a way to put an Index on the values from an Map? For example, if I have a Map like this: private Map<String, TemplateModel> mmsContainer and I want to access it fast in following way: Collection<TemplateModel> values = mmsContainer.values(); Thanks for you help wua Andreas Wurm
69

Suggest link to Maven example from Enhancer tool page

> <executions> May I suggest you also link from there to the tutorial example: https://www.objectdb.com/tutorial
69

JDO sequences from ORM file

a combination of moving the sequence from ORM to JDO file, specifying the factory-class as
69

Delete class from DB - through Explorer

Hi! I was looking for ways to delete a class (entity/embedded) from a database through Explorer, but I couldn't find any. Is there any way for doing that? If not, why? The only way I see right now is to delete the whole db and make a new one, but that's not a good scenario
69

NPE when reading map from DB

Greetings, this NPE happened in our app first time today while reading objects from DB. Could u please check what could be the issue ? Inner message: Cannot invoke "com.objectdb.o.ORS.YD()" because "<parameter1>" is null -------------------- com.objectdb.o.TYR.<init>(TYR.java:113) com
69

Access to client/server database from multiple applications

Is there a preferred way to run a client-server database so that updates from one application are immediately visible to another? The way I managed this was to run PersistenceManagerFactory.getDataStoreCache().evictAll(true,MyClass.class) to ensure that a query on MyClass would contain updated data
69

Backup from explorer

Is it possible to make a backup from the explorer? jastorga Juan If the database is not in use you can use the File > Open dialog and then copy and paste on the database file (right click a database file to see the copy command). But a safe online backup (while the database is in use) is not supported. support Support
68

ways to recover from DB curruption

ways to recover from DB curruption
68

Get database schema from objectDB file

Get database schema from objectDB file
13

Null pointer exception being thrown from within ObjectDB.

<ReportDownloadObject> r = q.from(ReportDownloadObject.class);     q.select(r

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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