This topic will give you some start information about db4o and will help you to get your environment ready to work with db4o.
The db4o Java distribution comes as one zip file, db4o-X.X-java.zip. You will have to extract the contents to any folder before starting to use db4o.
db4o-X.X/doc/reference
contains reference documentation, which you are reading.
In addition to it you will find the following docs in your distribution:
db4o-X.X/doc/tutorial/index.html
This is the interactive "formula-1" HTML tutorial. Examples can be run "live" against a db4o database from within the browser. In order to use the interactive functionality a Java JRE 1.3 or above needs to be installed and integrated into the browser. Java security settings have to allow applets to be run.
It is recommended to take a first quick "drive" with "formula-1" before studying other db4o documents.
db4o-X.X/doc/tutorial/db4o-X.X-tutorial.pdf
The PDF version of the tutorial allows best fulltext search capabilities.
db4o-X.X/doc/api/index.html
The API documentation for db4o is supplied as JavaDocs HTML files. While you read through this documentation it may be helpful to look into the API documentation occasionaly.
Additional online resources are available here: http://developer.db4o.com/Resources
The java version of db4o object database engine consists of one single jar file.This is all that you need to program against. The versions supplied with the distribution can be found in db4o-X.X/lib/.
db4o-X.X-java1.1.jar
will run with most Java JDKs that supply JDK 1.1.x functionality such as reflection and Exception handling. That includes many IBM J9 configurations, Symbian and Savaje.
db4o-X.X-java1.2.jar
is built for all Java JDKs between 1.2 and 1.4.
db4o-X.X-java5.jar
is built for Java JDK 5.
If you add one of the above db4o-*.jar files to your CLASSPATH, db4o is installed. In case you work with an integrated development environment like Eclipse you would copy the db4o-*.jar to a /lib/ folder under your project and add db4o to your project as a library. (You only need to copy the one jar file for the distribution you are targeting.)
Here is how to add the db4o library to an Eclipse project