com.dianping.bee.engine.spi.DatabaseProvider cat com.dianping.bee.db.cat.CatDatabase com.dianping.bee.db.cat.EventIndexer com.dianping.bee.db.cat.EventIndexer com.dianping.bee.db.cat.TransactionIndexer com.dianping.bee.db.cat.TransactionIndexer com.dianping.bee.engine.spi.DatabaseProvider dog com.dianping.bee.db.dog.DogDatabase