Fast Object Database for Java - with JPA/JDO support

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21

Recovery file does not match db file

up, these errors started: ObjectDB 2.3.1_03] javax.persistence.PersistenceException Recovery file '/auctionologies/java/storage.odb$' does not match db file '/auctionologies/java/storage.odb' (error 145 ... , which has been fixed in version 2.4.0. Please check if the recovery file (odb$) is empty
21

Programatic configuration or configuration file loaded from classpath or file

/setting. However, I have a dynamic environment and don't want to place the configuration file in ... ) Is it possible to place the configuration file in my own jar and have it loaded by classloader? If one or ... the configuration file. b) ) Is it possible to place the configuration file in my own jar and have it loaded by
20

Database Transaction Replayer

ObjectDB can record its internal engine operations in special binary recording (journal) files ... & Recording Files When recording is enabled, ObjectDB maintains for every database file a recording directory whose name is the name of the database file with the odr (ObjectDB Recording) suffix. By
19

[ODB1] Chapter 5 - JDO Connections

. To access a database file directly using embedded mode, specify either its absolute path or its relative ... PersistenceManagerFactory instance, based on the specified properties. Using a Properties File Properties can also be specified in a file, as demonstrated by the following properties file: javax.jdo
18

Database Explorer

. Running the Explorer The ObjectDB Explorer is contained in the explorer.jar executable jar file, which is located in the bin directory of ObjectDB. It depends on the objectdb.jar file. You can run ... the shell file, setting the paths to the objectdb.jarfile and to the JVM). Connecting
18

[ODB1] Chapter 2 - A Quick Tour

source file, HelloWorld.java, containing a single class: 1 // A simple program that manages a list ... a local database file, hello.odb, is obtained using the Utilities.getPersistenceManager(...) static method (lines 12-13). If a database file does not exist in that path, a new database file is created
17

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
17

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
17

[ODB1] Chapter 4 - JDO Metadata

A JDO metadata file is an XML file with a '.jdo' suffix, containing information about one or more persistent classes. All the persistent classes, and only them, have to be declared in a metadata file ... system. Therefore, at deployment, .jdo metadata files must be packaged with an application's .class files and the other resources
16

SSL Configuration

file contains the following element: Files To use SSL you have to generate at least two files: A Keystore file that functions as a unique signature of your server. This file contains general details (such as a company name), an RSA

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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