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Typically, all conditions collections required by a Driver should be loaded in this method to avoid incurring a performance overhead by reading the conditions on every event.

You can also access collections not associated to the current run by providing the collection ID.

DatabaseConditionsManager conditionsManager = DatabaseConditionsManager.getInstance();
EcalGainCollection gains = new EcalGainCollection();
gains.setConnection(conditionsManager.getConnection());
gains.setTableMetaData(conditionsManager.findTableMetaData("ecal_gains");
gains.select(1234); /* where number is a valid collection ID in the database */

This can be used to retrieve reference data that is not accessible in the conditions for the run.

Conditions Types

Conditions Type Table

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Database Schema

Conditions Collections

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Selecting by Collection ID

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