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Manual
3

Database Explorer

directory a path to it has to be specified. Alternatively, you can run the Explorer by double clicking explorer.jar or by running explorer.exe (on Windows) or explorer.sh (on Unix/Linux, after editing ... . Recently used databases can also be opened using the File > Recent Connections command. By default
Forum
3

Query becomes slower on moving from ObjectDB 1.x to ObjectDB 2.x

from 1.x to 2.x. To activate the index the database has to be rebuilt by running the Doctor in repair mode. After fixing the index in that database (by running the Doctor) the query runs fast. Thanks ... " Does it mean that, before conversion, i need to do the following steps 1. Update the package.jdo
Manual
3

Retrieving JPA Entity Objects

of entity classes and to keep them simple as possible. Retrieval by Class and Primary Key Every entity object can be uniquely identified and retrieved by the combination of its class and its primary key ... except that if the entity object is not already managed by the EntityManager a hollow object
Forum
3

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

when the master is unavailable. I simulate the master unavailable by stopping the master server ... .EMF.createEntityManager(EMF.java:253) at tutorial.Main.main(Main.java:22) Caused by: com.objectdb ... .objectdb.jpa.EMF.createEntityManager(EMF.java:250) ... 1 more Caused by: java.net.ConnectException
Result
3

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
3

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
3

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
Issue
3

log entry and massive performance issues

-- set up a non optimized query (simple select) >>> our application step by step blows up (as ... was terminated by the timeout that we have set (200 seconds) ad 2: unfortunately we cannot step ... should be followed by an exception, do you have a stack trace of such an exception in the log? Did
Forum
2

Problem with distinct select, order by and equivalent alias/attribute path

when ordering the results of some projection when the order by expression is different (though logically ... _location "             + "order by s_location.id asc";         System.out.println("Working query ... "             + "left join s.location as s_location "             + "order by s.location.id asc
Manual
2

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