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## 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:
  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
Version:
  $Revision: 1.6.2.4 $

Field Summary

Fields inherited from class org.apache.tools.ant.ProjectComponent
`project`

Constructor Summary
`Not()`

Method Summary
`boolean` | `eval()` Evaluate condition

Methods inherited from class org.apache.tools.ant.taskdefs.condition.ConditionBase
`add, addAnd, addAvailable, addChecksum, addContains, addEquals, addFilesMatch, addHttp, addIsFalse, addIsReference, addIsSet, addIsTrue, addNot, addOr, addOs, addSocket, addUptodate, countConditions, getConditions`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`getProject, log, log, setProject`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Not

    public Not()

Method Detail

### 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.

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