# Package org.apache.tools.ant.taskdefs.condition

- Interface Summary
  Interface | Description
  --- | ---
  Condition | Interface for conditions to use inside the <condition> task.

- Class Summary
  Class | Description
  --- | ---
  And | <and> condition container.
  AntVersion | An Ant version condition.
  ConditionBase | Baseclass for the <condition> task as well as several conditions - ensures that the types of conditions inside the task and the "container" conditions are in sync.
  Contains | Is one string part of another string?
  Equals | Simple comparison condition.
  FilesMatch | Compares two files for equality based on size and content.
  HasFreeSpace | <hasfreespace>
  HasMethod | test for a method
  Http | Condition to wait for a HTTP request to succeed.
  IsFailure | Condition to test a return-code for failure.
  IsFalse | Condition that tests whether a given string evals to false
  IsFileSelected | This is a condition that checks to see if a file passes an embedded selector.
  IsLastModified | Condition that makes assertions about the last modified date of a resource.
  IsLastModified.CompareMode |
  IsReachable | Test for a host being reachable using ICMP "ping" packets & echo operations.
  IsReference | Condition that tests whether a given reference has been defined.
  IsSet | Condition that tests whether a given property has been set.
  IsSigned | Checks whether a jarfile is signed: if the name of the signature is passed, the file is checked for presence of that particular signature; otherwise the file is checked for the existence of any signature.
  IsTrue | Condition that tests whether a given string evals to true
  Matches | Simple regular expression condition.
  Not | <not> condition.
  Or | <or> condition container.
  Os | Condition that tests the OS type.
  ParserSupports | Test for the XML parser supporting a particular feature
  ResourceContains | <resourcecontains> Is a string contained in a resource (file currently)?
  ResourceExists | Condition that checks whether a given resource exists.
  ResourcesMatch | Compares resources for equality based on size and content.
  Socket | Condition to wait for a TCP/IP socket to have a listener.
  TypeFound | looks for a task or other Ant type that exists.
  Xor | The `Xor` condition type to exclusive or operations.