Several Runnables are included in the standard eHive distribution, providing a library of components that can be helpful when creating pipelines. All of these are located in the directory modules/Bio/EnsEMBL/Hive/RunnableDB/. In addition, there are Runnables included with the examples under modules/Bio/EnsEMBL/Hive/Examples/. Although those are written to fit into specific example pipelines to illustrate specific eHive concepts, you may find them useful in your own pipelines.
The included examples are:
Bio::EnsEMBL::Hive::RunnableDB::DatabaseDumperBio::EnsEMBL::Hive::RunnableDB::DbCmdBio::EnsEMBL::Hive::RunnableDB::DummyBio::EnsEMBL::Hive::RunnableDB::FastaFactoryBio::EnsEMBL::Hive::RunnableDB::JobFactoryBio::EnsEMBL::Hive::RunnableDB::MySQLTransferBio::EnsEMBL::Hive::RunnableDB::NotifyByEmailBio::EnsEMBL::Hive::RunnableDB::SlackNotificationBio::EnsEMBL::Hive::RunnableDB::SqlCmdBio::EnsEMBL::Hive::RunnableDB::SqlHealthcheckBio::EnsEMBL::Hive::RunnableDB::SystemCmd