public class ExtDbSqlSession
Overriden DbSqlSession has an empty overriden performSchemaOperationsProcessEngineBuild method
because we don't want Activiti engine to manage its database schema.
If default DbSqlSession is used then an exception is thrown when we run an application server with just added BPM
module for the first time. performSchemaOperationsProcessEngineBuild() queries the database, but the DbUpdater
hasn't created activiti tables by that time.
Nested Class Summary
Nested classes/interfaces inherited from class org.activiti.engine.impl.db.DbSqlSession