# Uses of Package
org.apache.lucene.replicator.nrt

- Classes in org.apache.lucene.replicator.nrt used by org.apache.lucene.replicator.nrt
  Class
  Description
  CopyJob
  Handles copying one set of files, e.g.
  CopyJob.OnceDone
  Callback invoked by CopyJob once all files have (finally) finished copying
  CopyOneFile
  Copies one file from an incoming DataInput to a dest filename in a local Directory
  CopyState
  Holds incRef'd file level details for one point-in-time segment infos on the primary node.
  FileMetaData
  Holds metadata details about a single file that we use to confirm two files (one remote, one local) are in fact "identical".
  Node
  Common base class for `PrimaryNode` and `ReplicaNode`.
  ReplicaNode
  Replica node, that pulls index changes from the primary node by copying newly flushed or merged index files.