# Uses of Class
org.apache.storm.trident.operation.BaseFilter

Packages that use BaseFilter
Package
Description
org.apache.storm.trident.operation.builtin
org.apache.storm.trident.testing

- ## Uses of BaseFilter in org.apache.storm.trident.operation.builtin

  Subclasses of BaseFilter in org.apache.storm.trident.operation.builtin
  Modifier and Type
  Class
  Description
  `class`
  `Debug`
  Filter for debugging purposes.
  `class`
  `Equals`
  `class`
  `FilterNull`
  Simple `Filter` implementation that filters out any tuples that have fields with a value of `null`.

- ## Uses of BaseFilter in org.apache.storm.trident.testing

  Subclasses of BaseFilter in org.apache.storm.trident.testing
  Modifier and Type
  Class
  Description
  `class`
  `TrueFilter`