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, but how would this impact the performance, let's say when there are millions of products each with several multi ... , wouldn't that severely impact the performance? What would you suggest to do instead? Thanks a lot

How Should I Configure objectdb.conf to Obtain 256KB Disk IO Requests and Maximize Shared PersistenceManager Entity Cache?

on an Amazon EBS disk which has max performance at that size and reduces monetary fees by having ... performance at that size and reduces monetary fees by having fewer accesses). So a page size of 256K

Internal objectdb error when execute a flush

We get an internal objectdb error, when we execute a flush. Why? What's wrong? It performs with version objectdb-2.6.4_04. It does not perform with version objectdb-2.6.6_04. Caused by: com.objectdb.o.InternalException: Unexpected internal exception at com.objectdb.o.JPE.h(JPE.java:168) ~[na:na

Bidirectional OneToMany is slow on updated items

that can improve performance dramatically, is to avoid using mapped by collections: @OneToMany(cascade ... are faster than the 1st. If you need to improve performance further, consider replacing the find

find() cost unreasonable time!

that the bidirectional relationship was converted to 2 unidirectional relationships - the performance is incomparable ... one bidirectional relationship to two unidirectional relationships to improve performance. > BTW

Query for objects persisted within the same transaction

/java/jpa/query/setting#Flush_Mode_setFlushMode support Support Thanks, The part about performance in documentation is so true. I think I'll stick with map to check for duplicates, as performance drop is like 20x - just tested. lwalkowski Lukasz Walkowski

A bidirectional OneToOne association with a shared primary key

side, otherwise the association will not be created. Regarding performance, in many cases managing ... the performance advantage you mentioned, can you provide or point me to any concrete code example

Java 9 support

a performance test of our product ("MoxyDox") using ObjectDB and Java 9. Here are the results. Using ... , MoxyDox is able to, on average, perform a fully encrypted client-to-server-to-database-to-server

locks on pure query activities

of ObjectDB, but it is unclear if this would improve the performance of your application, as apparently I/O ... "); (or using the -D JVM argument). It is unclear if this could improve performance of your application

Explorer bug ? Objects seem to be missing from database in Class view, but are present as references

(many times until commit). You should avoid this to improve performance, but of course - ObjectDB ... and understood, but it seems that switching to SEQUENCE or TABLE would provide better performance than flush after every persist. support Support

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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