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Database Configuration

Perhaps you're using low level configuration settings which are file-related. In such cases it's recommended to use the database configuration for the defragmentation process. Especially settings like string-encoding and block-size need to be configured properly for the defragmentation.

DefragmentConfig config = new DefragmentConfig("database.db4o");
// It's best to use the very same configuration you use for the regular database
final EmbeddedConfiguration configuration = Db4oEmbedded.newConfiguration();
config.db4oConfig(configuration);

Defragment.defrag(config);
DefragmentationConfigurationExamples.java: Use the database-configuration