In JDO, PersistenceManagerFactorys are usually obtained through the JDOHelper.getPersistenceManagerFactory(Properties) method. Kodo JDO's runtime settings can be entirely specified via the properties passed to this method. Kodo JDO also includes a comprehensive system of property defaults and overrides:
All properties default to the values specified in an optional kodo.properties resource that can be placed in any top-level directory of the CLASSPATH.
You can customize the name or location of the above resource by specifying the correct resource path in the kodo.properties System property.
You can override any default value defined in the kodo.properties resource by setting the System property of the same name to the desired value.
The values in the Properties object passed to JDOHelper.getPersistenceManagerFactory at runtime override the default values in the kodo.properties resource and any System property settings.
All Kodo JDO command-line tools accept flags that allow you to specify the properties file to use and to override certain properties. Section 2.3, “Command Line Configuration” describes these flags.
![[Note]](img/note.gif) | Note |
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Internally, the Kodo JDO runtime environment and development tools manipulate property settings through SolarMetric's general Configuration interface, and in particular its JDOConfiguration and JDBCConfiguration subclasses. For advanced customization, Kodo JDO's PersistenceManagerFactory implementation and its development tools allow you to access these interfaces directly. See the Javadoc for details. | |