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forum_thread

Temporary disabling of indexes?

When populating a large database with objects that have indexed fields takes very much longer than populating the database with those objects if the index definitions are removed.  Is it possible to indicate in some way that for a particular use of the database indexes are to be ignored, and can be rebuilt later? #1 2016-06-29 18:30 When populating a large database with objects that have indexed fields takes very much longer than populating the ...

 
forum_thread

First query takes 4+ minutes to complete

Hi, we are evaluating ObjectDB 2.5.1_04 in embedded mode hoping to replace SQLite in our application. We observed that in our case it takes on average more than 4 minutes to complete the first SELECT query that we run on the DB which contains about 320,000 records of a single type of object. SQLite in comparison responds within few seconds on average with the same number of records. We hope to receive your recommendation on how to improve this result with this post.   Test System ... issue happens with the first query that we run after we start the application that uses the DB in embedded mode. So we basically start the application and let is stabilise for about 60 seconds. By this time a ...

 
forum_thread

How to resolve 404 errors with Eclipse/Maven Spring MVC

I have created a project as guided by www.objectdb.com/tutorial/jpa/eclipse/spring/run. When I abandon eclipse and use the maven command line to deploy this Spring MVC web app to jetty and point my browser to localhost:8080/Guestbook/ it works as your tutorial says! ... downloaded from http://www.objectdb.com/tutorial/jpa/start/maven. (2) Download tomcat 6 from ... guestbook to the right hand "configured" pane. (6) Start the tomcat 6 server by clicking on the green triangular icon. (7) ...

 
manual

Deleting JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database.... begin begin() EntityTransaction's method Start a resource transaction. See JavaDoc Reference Page... ( ...

 
tutorial

Report Generation with BIRT and JPA

Demonstrates how to use ObjectDB as a data source of the Business Intelligence and Reporting Tools (BIRT), open source report generator. This tutorial demonstrates how to create reports based on data in an ObjectDB database using the popular open source Business Intelligence and Reporting Tools (BIRT). In order to keep things as simple as possible - we will use the basic  ...

 
release

2.5.3

... You should start by following a  tutorial or reading the manual . For ... Added INFO level logging for indicating server start and stop. Improved error message for creating a query with ...

 
release

2.5.4

... You should start by following a  tutorial or reading the manual . For ... Added INFO level logging for indicating server start and stop. Improved error message for creating a query with ...

 
tutorial

Step 3: Create an ObjectDB Data Source

Explains how to create an ObjectDB data source for BIRT reports.... the points.odb  database file (from the Quick Start tutorial ). Specify an ObjectDB connection url - either ...

 
issue

Index Rebuilder

When a new index is added to an existing entity classes that already has instances in the database, it cannot be used in queries, because it starts empty and it is not synchronized with the existing primary data. The Index Rebuilder tool will enable rebuilding indexes, synchronizing their data to the primary data. As a workaround, you can currently use the ObjectDB Doctor to build a new database file, in which such new indexes will be enabled. Feature Request Version: 1.04 Priority: Normal Status: Fixed Replies: 1 Type:  Feature Request ...

 
release

2.5.2

... You should start by following a  tutorial or reading the manual . For ... Added INFO level logging for indicating server start and stop. Improved error message for creating a query with ...