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

# Class Not

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.taskdefs.condition.ConditionBase
org.apache.tools.ant.taskdefs.condition.Not

All Implemented Interfaces:
  `java.lang.Cloneable`, `Condition`

    public class Not
    extends ConditionBase
    implements Condition

<not> condition. Evaluates to true if the single condition nested into it is false and vice versa.

Since:
  Ant 1.4

- ## Field Summary

  ### Fields inherited from class org.apache.tools.ant.ProjectComponent

  `description, location, project`

- ## Constructor Summary

  Constructors
  Constructor | Description
  --- | ---
  `Not()` |

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `boolean` | `eval()` | Evaluate condition

  ### Methods inherited from class org.apache.tools.ant.taskdefs.condition.ConditionBase

  `add, addAnd, addAvailable, addChecksum, addContains, addEquals, addFilesMatch, addHttp, addIsFalse, addIsFileSelected, addIsReference, addIsSet, addIsTrue, addNot, addOr, addOs, addSocket, addUptodate, countConditions, getConditions, getTaskName, setTaskName`

  ### Methods inherited from class org.apache.tools.ant.ProjectComponent

  `clone, getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject`

  ### Methods inherited from class java.lang.Object

  `equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### Not

    public Not()

- ## Method Details

  - ### eval

    public boolean eval() throws BuildException
    Evaluate condition
    Specified by:
      `eval` in interface `Condition`
    Returns:
      true if the condition is true.
    Throws:
      `BuildException` - if the condition is not configured correctly.