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Apache License, Version 2.0, January 2004

the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright ... and all other entities that control, are controlled by, or are under common control with that entity
Manual
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Database Management Settings

. The resize attribute specifies the size by which to extend the database file when additional space is needed. Small initial size and resize values save space. Larger values can improve performance by ... ="128mb" /> When enabled, a recovery file is created by ObjectDB when a database is opened
Manual
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JPA Entity Fields

(Mapped By) fields Primary key (ID) fields Version field The first three groups (transient, persistent ... Fields Every non-static non-final entity field is persistent by default unless explicitly specified otherwise (e.g. by using the @Transient annotation). Storing an entity object in the database does not
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Schema Evolution Question

the following steps: Stop old client application. Stop ObjectDB. Start ObjectDB. Start NEW client ... Thank you!   The correct steps are: Stop old client application with the old schema. Stop ObjectDB server. Start ObjectDB server. Start new client application with the new schema. I followed these steps
Manual
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Locking in JPA

update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking ... by another transaction. When using ObjectDB, optimistic locking is enabled by default and fully ... is automatically increased by one. Version numbers are managed internally but can be exposed by defining a version
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How to deploy an Objectdb project with Jboss AS 7?

. Is there an instruction how to deploy objectdb project to Jboss AS 7 step by step?   I used objectdb ... .Thread.run(Thread.java:722) [rt.jar:1.7.0_21] Caused by: javax.persistence.PersistenceException ... : Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => {"JBAS014671
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Eclipse plugin problem (using ObjectDB as a separate bundle)

the problem I cleaned by project, and enhanced with ObjectDB with the small utility class public class ... cascaded automatically to referenced objects by default. Therefore, when you persist an object it must reference only objects that are already managed by ObjectDB - otherwise you get this exception
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JPQL query to get entities that does not have a child entity in their child entities

:12:10 14:00:00      001 02    Step_1_Started        2105:12:10 14:00:00      001 03    Step_1_Finished       2105:12:10 14:00:05      001 04    Step_2_Started        2105:12:10 14:00:05      001 05    Step_2_Finished       2105:12:10 14:00:10      001 06    Finished              2105:12:10 14:00
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JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

",          query="select g from guest.Guest g order by g.name" ) } ) @Stateless @TransactionManagement ... );   TypedQuery query = this.em.createQuery( "select g from guest.Guest g order by g.name ... ="select g from guest.Guest g order by g.name" ) } ) ... // NamedQuery does not work // TypedQuery
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em.flush(); em.clear(); loosing data and not persisting managed objects

thread "main" [ObjectDB 2.2.3_06] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64 ... the length of primary keys, but large strings as demonstrated by this test should be avoided ... exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_24 (on Linux 2.6.32-71