# Uses of Class
org.apache.storm.networktopography.AbstractDNSToSwitchMapping

Packages that use AbstractDNSToSwitchMapping
Package
Description
org.apache.storm.networktopography
org.apache.storm.testing

- ## Uses of AbstractDNSToSwitchMapping in org.apache.storm.networktopography

  Subclasses of AbstractDNSToSwitchMapping in org.apache.storm.networktopography
  Modifier and Type
  Class
  Description
  `final class`
  `DefaultRackDNSToSwitchMapping`
  This class implements the `DNSToSwitchMapping` interface It returns the DEFAULT_RACK for every host.

- ## Uses of AbstractDNSToSwitchMapping in org.apache.storm.testing

  Subclasses of AbstractDNSToSwitchMapping in org.apache.storm.testing
  Modifier and Type
  Class
  Description
  `final class`
  `AlternateRackDNSToSwitchMapping`
  This class implements the `DNSToSwitchMapping` interface It alternates bewteen RACK1 and RACK2 for the hosts.