Db4o : ActivationDepth seems to have no effect (?)?

My best bet is that you are missing db4o-xxx-nqopt. Jar which contains required classes for NQ optimization When a NQ query fails the criteria to run optimized db4o still runs your query, but this time as an evaluation whence it needs to activate all candidates Follows the output of DiagnoticToConsole() on such cases: Test02$1@235dd910 :: Native Query Predicate could not be run optimized This Native Query was run by instantiating all objects of the candidate class Consider simplifying the expression in the Native Query method. If you feel that the Native Query processor should understand your code better, you are invited to post yout query code to db4o forums at developer.db4o.com/forums To fix this, make sure that at least db4o-xxx-core-java5.

Jar db4o-xxx-nqopt-java5. Jar db4o-xxx-instrumentation-java5. Jar and bloat-1.0.

Jar are in your classpath. Alternatively you can replace all these jars with db4o-xxx-all-java5.jar.

My best bet is that you are missing db4o-xxx-nqopt. Jar which contains required classes for NQ optimization. When a NQ query fails the criteria to run optimized db4o still runs your query, but this time as an evaluation whence it needs to activate all candidates.

Follows the output of DiagnoticToConsole() on such cases: Test02$1@235dd910 :: Native Query Predicate could not be run optimized. This Native Query was run by instantiating all objects of the candidate class. Consider simplifying the expression in the Native Query method.

If you feel that the Native Query processor should understand your code better, you are invited to post yout query code to db4o forums at developer.db4o.com/forums To fix this, make sure that at least db4o-xxx-core-java5. Jar, db4o-xxx-nqopt-java5. Jar, db4o-xxx-instrumentation-java5.

Jar and bloat-1.0. Jar are in your classpath. Alternatively you can replace all these jars with db4o-xxx-all-java5.jar.

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