Package org.apache.tools.ant.taskdefs

# Class ConditionTask

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.taskdefs.condition.ConditionBase
org.apache.tools.ant.taskdefs.ConditionTask

All Implemented Interfaces:
  `Cloneable`

public class ConditionTask extends ConditionBase
Task to set a property conditionally using <uptodate>, <available>, and many other supported conditions.

This task supports boolean logic as well as pluggable conditions to decide, whether a property should be set.

This task does not extend Task to take advantage of ConditionBase.

Since:
  Ant 1.4

- ## Field Summary

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

  `description, location, project`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `ConditionTask()`
  Constructor, names this task "condition".

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `execute()`
  See whether our nested condition holds and set the property.
  `void`
  `setElse(Object alt)`
  The value for the property to set, if condition evaluates to false.
  `void`
  `setElse(String e)`
  The value for the property to set, if condition evaluates to false.
  `void`
  `setProperty(String p)`
  The name of the property to set.
  `void`
  `setValue(Object value)`
  The value for the property to set, if condition evaluates to true.
  `void`
  `setValue(String v)`
  The value for the property to set, if condition evaluates to true.

  ### 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

  - ### ConditionTask

    public ConditionTask()
    Constructor, names this task "condition".

- ## Method Details

  - ### setProperty

    public void setProperty(String p)
    The name of the property to set. Required.
    Parameters:
      `p` - the name of the property
    Since:
      Ant 1.4

  - ### setValue

    public void setValue(Object value)
    The value for the property to set, if condition evaluates to true. Defaults to "true".
    Parameters:
      `value` - the (Object) value of the property
    Since:
      Ant 1.8

  - ### setValue

    public void setValue(String v)
    The value for the property to set, if condition evaluates to true. Defaults to "true".
    Parameters:
      `v` - the value of the property
    Since:
      Ant 1.4

  - ### setElse

    public void setElse(Object alt)
    The value for the property to set, if condition evaluates to false. If this attribute is not specified, the property will not be set.
    Parameters:
      `alt` - the alternate value of the property.
    Since:
      Ant 1.8

  - ### setElse

    public void setElse(String e)
    The value for the property to set, if condition evaluates to false. If this attribute is not specified, the property will not be set.
    Parameters:
      `e` - the alternate value of the property.
    Since:
      Ant 1.6.3

  - ### execute

    public void execute() throws BuildException
    See whether our nested condition holds and set the property.
    Throws:
      `BuildException` - if an error occurs
    Since:
      Ant 1.4