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Performance problem

Hi, we have a strange performance problem with ObjectDB 2.5.3_01 and JBoss 7.1.1 ... separate test environment its speed is very good. We did a performance analysis on our 2 linux servers ... seconds. We pinpointed that from he 53 record performances degrades significantly. On other queries

What are the main benefits of using ObjectDB?

performance. Reducing Development Time and Costs ObjectDB makes database programming easier and faster ... to shorter time to market and saving in the total development time and costs. Improving Performance ... . Obviously, elimination of conversions, translations and other intermediate operations leads to better performance.

Database Management Settings

is needed. Small initial size and resize values save space. Larger values can improve performance by ... ) for the recovery file and the database file can improve performance. The max attribute is a hint ... , to avoid thread competition that leads to poor performance. The <index-update> element   <index

Is ObjectDB better than Object Relational Mapping (ORM)?

As noted above, using ObjectDB instead of a relational database and ORM combination is easier and leads to better performance. ORM tools, however, are very useful where the use of a relational ... of both worlds - use ObjectDB when applicable for faster development and better performance and use

Entity Management Settings

can manage non enhanced classes by using reflection at the cost of performance. The possible values ... , and loading their persistent content lazily, when they are accessed, could improve performance

JPA / JDO Class Enhancer

ObjectDB Enhancer is a post compilation tool that improves performance by modifying the byte code of compiled classes after compilation. Enhancement is mainly for user-defined persistable classes (entity classes, embeddable classes and mapped superclasses), and is usually optional

General Settings and Logging

Describes general configuration and logging of the ObjectDB Java object database for JPA and JDO. the ObjectDB General configuration section.

Chapter 6 - Configuration

Explains how to configure and tune ObjectDB, the fast Java object database for JPA/JDO.

Is ObjectDB better than competing object databases?

All about Is ObjectDB better than competing object databases? in Java/JPA database - explanations, examples, references, links and related information.

Shared (L2) Entity Cache

Explains how to set and use the EntityManagerFactory's shared cache (L2 / level 2) in JPA 2.

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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