# Package org.apache.cassandra.db.lifecycle

Class Summary
LifecycleTransaction: IMPORTANT: When this object is involved in a transactional graph, for correct behaviour its commit MUST occur before any others, since it may legitimately fail.
LifecycleTransaction.ReaderState
LogReplicaSet: A set of log replicas.
SSTableIntervalTree
Tracker: Tracker tracks live `View` of data store for a table.
View: An immutable structure holding the current memtable, the memtables pending flush, the sstables for a column family, and the sstables that are active in compaction (a subset of the sstables).

Enum Summary
LifecycleTransaction.ReaderState.Action
SSTableSet