Package org.apache.tools.ant.filters

## Class UniqFilter

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.filters.TokenFilter.ChainableReaderFilter
    - - org.apache.tools.ant.filters.UniqFilter

- All Implemented Interfaces:
    `java.lang.Cloneable`, `ChainableReader`, `TokenFilter.Filter`

      public class UniqFilter
      extends TokenFilter.ChainableReaderFilter

  Like the Unix uniq(1) command, only returns tokens that are different from their ancestor token.

  This filter is probably most useful if used together with a sortfilter.

  Since:
    Ant 1.8.0

- - ### Field Summary

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

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `UniqFilter()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `java.lang.String` | `filter​(java.lang.String string)` | filter and/of modify a string

    - ### Methods inherited from class org.apache.tools.ant.filters.TokenFilter.ChainableReaderFilter

      `chain, setByLine`

    - ### 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 Detail

    - #### UniqFilter

          public UniqFilter()

  - ### Method Detail

    - #### filter

          public java.lang.String filter​(java.lang.String string)

      Description copied from interface: `TokenFilter.Filter`
      filter and/of modify a string
      Parameters:
        `string` - the string to filter
      Returns:
        the modified string or null if the string did not pass the filter