Fast Object Database for Java - with JPA/JDO support

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[ODB1] Chapter 5 - JDO Connections

. To access a database file directly using embedded mode, specify either its absolute path or its relative path. The JDOHelper.getPersistenceManagerFactory(...) static method constructs and returns a new ... client server mode should be used to access that database. To use embedded mode, an absolute path or
23

Change path for urls2.xml file

I am using ObjectDB embedded and have set my home path in relation to the JAR, but running ... the creation path of this file? I assumed it would be in relation to the home path, similar to the db ... directory (regardless of the ObjectDB home path). You can change the user home directory by changing a Java
23

Path in tomcat

/, then where the .conf should be in? And the .odb? See explanations about ObjectDB home and configuration path in the manual. Notice that the database file can be at any absolute path that you specify. support ... " and then use this path. Now you can redeploy you application without deleting database files
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Multi part paths in a composite index must have the same length

Hi, I am trying to create some index in a DB - but I get an exception when i try to commit. Exception in thread "main" [ObjectDB 2.6.0_01] javax.persistence.PersistenceException Invalid index path ... as my SafeLong class is just a simple wrapper. Multi part paths in a composite index
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Problem with distinct select, order by and equivalent alias/attribute path

so...) - shouldn't the expressions (alias and access path) theoretically be equivalent ... real sense to me switching from alias to attribute path between projection and order by part... bklink Benjamin Klink
22

$temp property not evaluated properly when used in log path

I have the following lines in my objectdb.conf file: path="$temp/ObjectDB/log/" max="8mb" stdout="false" stderr="false" /> path="$temp/ObjectDB/log/archive/" retain="90" /> I don't believe that the $temp property is being evaluated properly here as it creates a new directory
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Adding multi part path index on non-embedable object member

definition is invalid, since a multi path index is limited to one entity class (and additional embeddable classes) but cannot spread over multiple entity classes. You may split a multi path index
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migration path from JPA / Hibernate

migration path from JPA / Hibernate
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start_path.png

start_path.png
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reference_path_of_type_ENT.PNG

reference_path_of_type_ENT.PNG

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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