org.apache.tools.ant.attribute

## Class BaseIfAttribute

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.attribute.BaseIfAttribute

- All Implemented Interfaces:
    java.lang.Cloneable, EnableAttribute
  Direct Known Subclasses:
    IfBlankAttribute, IfSetAttribute, IfTrueAttribute

      public abstract class BaseIfAttribute
      extends ProjectComponent
      implements EnableAttribute

  An abstract class for if/unless attributes. This contains a boolean flag to specify whether this is an if or unless attribute.
  Since:
    Ant 1.9.1

- - ### Field Summary

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

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BaseIfAttribute()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected boolean` | `convertResult(boolean val)` convert the result.
    `protected java.util.Map` | `getParams(UnknownElement el)` Get all the attributes in the ant-attribute:param namespace and place them in a map.
    `protected boolean` | `isPositive()` Get the positive flag.
    `protected void` | `setPositive(boolean positive)` Set the positive flag.

    - ### 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`

    - ### Methods inherited from interface org.apache.tools.ant.attribute.EnableAttribute

      `isEnabled`

- - ### Constructor Detail

    - #### BaseIfAttribute

          public BaseIfAttribute()

  - ### Method Detail

    - #### setPositive

          protected void setPositive(boolean positive)

      Set the positive flag.
      Parameters:
        `positive` - the value to use.

    - #### isPositive

          protected boolean isPositive()

      Get the positive flag.
      Returns:
        the flag.

    - #### convertResult

          protected boolean convertResult(boolean val)

      convert the result.
      Parameters:
        `val` - the result to convert
      Returns:
        val if positive or !val if not.

    - #### getParams

          protected java.util.Map getParams(UnknownElement el)

      Get all the attributes in the ant-attribute:param namespace and place them in a map.
      Parameters:
        `el` - the element this attribute is in.
      Returns:
        a map of attributes.