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12

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 mmsContainer and I want to access it fast in following way: Collection values = mmsContainer.values(); Thanks for you help wua Andreas Wurm
12

Puzzler: Not getting cascades on read from Spring context

I've determined that the database is correctly initialized, looking at it from the Object Explorer, I can run the code that loads the database in a Junit test and it's initializing the children objects correctly, but in the application running in Jetty with Spring, fetching is not cascading
12

Suggest link to Maven example from Enhancer tool page

> May I suggest you also link from there to the tutorial example: https://www.objectdb.com/tutorial
12

Undeploying Glassfish web application does not disconnect from ObjectDB

embedded mode? Apparently undeploying a web application from GlassFish doesn't close
12

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 "" is null -------------------- com.objectdb.o.TYR.(TYR.java:113) com
12

Null pointer exception being thrown from within ObjectDB.

r = q.from(ReportDownloadObject.class);     q.select(r
12

Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled

Hello! When the JPA entities are not enhanced the removal of an entry from a @OneToMany collection is not possible. The following java code demonstrates the problem. The statement parentEntity.getChildEntityContainer().remove("01"); does not work correctly with not enhanced JPA entities
12

Query debugging configuration from class

Is there a way to show what queries are actually being executed from within a Java class? I'm getting the exception: Exception in thread "main" [ObjectDB 2.5.4_05] javax.persistence.NonUniqueResultException However, I'm unable to debug it because I don't know what the query's actually searching
12

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
12

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

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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