Fast Object Database for Java - with JPA/JDO support

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20

NetBeans/JPA Spring MVC Web Tutorial

database. Required Software For this tutorial you will need the following software: Java JDK 6.0 (or
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Best practice: Database update/migration of embedded databases in products

is now held otherwise. The product store user data in the ObjectDB-Database. Example: V1.0: EntityPerson ... : [name=”Max Mustermann”; zip=”26135”; city=”Oldenburg”] How can we load the Database DB1 ... and stored in the database in their new form, you can remove the fields firstName and familyName from V2.0. support Support
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[ODB1] Chapter 8 - ObjectDB Server

An ObjectDB server can manage one or more databases. Databases that are managed by a server ... these databases from remote machines by TCP/IP. More details about client server mode vs. embedded database mode are discussed in Section 1.2. Because the JDO API and the format of the database file
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Retrieving JPA Entity Objects

The Java Persistence API (JPA) provides various ways to retrieve objects from the database ... of the database. The persistence context serves as a cache of retrieved entity objects. If a requested ... with data that is retrieved from the database (or from the L2 cache - if enabled). The new entity object
14

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds ... any way to speed-up open time for big databases? Definitely, it's too long for 500 Mb database! We gonna work with ObjectDb databases which may have size more than 5Gb and opening database time
14

Unexpected exception during open the database

Hello, do have an idea why we get following exception sometimes, if we open a database? Exception 1 ... your company. The problem seems to be related to opening and closing the database for a short period ... block from objectdb.conf all works fine during opening the database. The automatic index update is not
14

Storing JPA Entity Objects

New entity objects can be stored in the database either explicitly by invoking the persist method ... an instance of the Employee entity class in the database: Employee employee = new Employee("Samuel ... and changes its state to Managed. The new entity object is stored in the database when the transaction
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[ODB1] Chapter 3 - Persistent Classes

Persistent Classes are user defined classes whose instances can be stored in a database using JDO. Instances of these classes that represent objects in the database are called persistent objects or persistent instances. Objects that do not represent anything in the database (including instances
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Database access error , Doctor hanging on trying to repair, production shutdown at our biggest customer

we have a database shutdown, logs are showing: [2017-07-10 21:07:23 #1 store] Database 'F ... : SectionClassifier{2->merger[2699]-missing:1} on running Doctor it hangs after reading in the database, just ... . If you need to repair the database (i.e. it is not a test database but contains useful data
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Failed to synchronize replicated database

database, we'll get following Exception: com.objectdb.o.UserException: Failed to synchronize replicated database at com.objectdb.o.MSG.a(MSG.java:64) at com.objectdb.o.RPT.a(RPT.java:100 ... For replication to work the slave database must start with a copy of the master database in the replication

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.

Need Help?

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  2. Read the FAQ
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