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2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

the id field to a simple String without database schema change, and save some space in memory

Iterating over large result set

Hi, Few days ago I was writing some code to iterate over quite a large dataset. Fitting those data in memory was quite a challenge even with 3GB heap space. So I did paging using two loops. for (int page=0; page < resultCount; page+=pageSize) {     Query q = em.createQuery("query


objectdb, however now I am getting a... java.lang.OutOfMemoryError: Java heap space

Searching lists within objects

one (this could also save space in the database). Split the query - first find the relevant attributes

locks on pure query activities

="5" files="20" disk-space="5mb" /> </dir> </user> <user username="user1" password="user1

possible index required for improving query performance

the class again with ObjectDB. Running the Doctor will reclaim the space that the index takes

Replication Issue

-space="5mb" />                         </dir>                 </user>                 <user

Negative snapshot user count exception

them, creating more space and avoiding resizing. If you try this, please let us know if you see any change

Unexpected error when loading all entity instance

again. The database file is corrupt. I checked the HDD for errors but there are none. The disk space

ObjectDB 2.2.0

and reusing space after index deletion. Changed default configuration (enabled recovery, disabled

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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