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Empty temporary dat files in the temp folder

Hello, We have questions regarding the pagesX.dat files in the temp directory. We detected ... of memory. Some information to our scenario: We use one main database file to which we continuously ... with just 1 MB) If we access entities from one of the additional DB’s we get five new pagesX.dat files (each

Unable to delete the .odb file programatically

Hi, I created the test.odb file, read the contents and now trying the delete the odb file using objectd2.x. I see the folder there are two files created test.odb and test.odb$. Using the following code to delte the odb files     PersistenceManager pm = (PersistenceManager) getPM(); if (pm

Consequence of lost ODB$ Files?

Hi, We use the Object DB backup utility for most of our backups, however we also do file system backups. Recently our file system backups have been failing because the .odb$ (write files ... back up of the associated .odb (main database file) and the .odb$ file is lost, will the main .odb file

Failed to read DB file while online backup is running

) failed with an exception during an online backup of the same DB file was running and was close ... ._JdoUserException: Failed to read from file '/path_to_db/dbFile.odb' NestedThrowables: java.io ... to read from file '/path_to_db/dbFile.odb' NestedThrowables: java.lang.NullPointerException at com

creating EntityManager on odb file created on Mac 64bit on Windows 32bit

Hello, I have an odb file created on my Mac OSX 64bit. When I further, in other program, create an EntityManagerFactory and later EntityManager on this file, every thing is working fine. But, when I transfer this program and odb file to Windows XP 32bit it crashes while creating EntityManager

Attempt to open a non existing file '/tmp/objectdb_xxxx/SortQueryItr_6.mrg'

at the same time on one machine - each application is using an ODB file (each one is using ... message: Caused by: com.objectdb.o._PersistenceException: Attempt to open a non existing file ... a SortQueryItr_6.mrg file - but b/c there are several applications running at the same time - maybe

Database Files

Hi. According the docs, "Every transaction commit is first written to the recovery file and then to the database". During my testing, every time I make a transaction the recovery file keeps growing, but the actual odb file never changes unless I restart the server. The <transaction-id>.odr

Use temporary files to enable very large transactions

further version. Can you implement it that ObjectDB used temporary files? btc_es BTC EmbeddedSystems ... which this data is written to a temporary file. Even without speed optimizations, but with priority ... Although ObjectDB already uses temporary files for many activities (e.g. processing large query

Step 6: Set the Spring XML

of the Spring dispatcher servlet to the web.xml configuration file and to configure that servlet using another xml configuration file. Open the web.xml file (under Web Pages > WEB-INF) in a text editor (by right ... ). Use copy and paste to replace the default content of the web.xml file with the following new

[ODB1] Chapter 3 - Persistent Classes

in a JDO metadata file in XML format. include a no-arg constructor. implement the javax.jdo.spi ... files, storing only the file names or paths in the database). Static and final fields ... class files and not in jar files. However, enhanced classes can be packed in jar files. Two types

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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