# Package picard.sam.util

- Interface Summary
  Interface | Description
  --- | ---
  PhysicalLocation | Small interface that provides access to the physical location information about a cluster.

- Class Summary
  Class | Description
  --- | ---
  Pair<X extends Comparable<X>,​Y extends Comparable<Y>> | Simple Pair class.
  PGTagArgumentCollection | Argument Collection which holds parameters common to classes that want to add PG tags to reads in SAM/BAM files
  PhysicalLocationInt | Small class that provides access to the physical location information about a cluster.
  PhysicalLocationShort | Small class that provides access to the physical location information about a cluster.
  ReadNameParser | Provides access to the physical location information about a cluster.
  RepresentativeReadIndexer | Little struct-like class to hold a record index, the index of the corresponding representative read, and duplicate set size information.