org.apache.tools.ant.taskdefs

## Class Filter

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.Task
    - - org.apache.tools.ant.taskdefs.Filter

- All Implemented Interfaces:
    java.lang.Cloneable

      public class Filter
      extends Task

  Sets a token filter that is used by the file copy tasks to do token substitution. Sets multiple tokens by reading these from a file.
  Since:
    Ant 1.1

- - ### Field Summary

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

      `target, taskName, taskType, wrapper`

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

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `Filter()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `execute()` Execute the task.
    `protected void` | `readFilters()` Read the filters.
    `void` | `setFiltersfile(java.io.File filtersFile)` The file from which the filters must be read.
    `void` | `setToken(java.lang.String token)` The token string without @ delimiters.
    `void` | `setValue(java.lang.String value)` The string that should replace the token during filtered copies.

    - ### Methods inherited from class org.apache.tools.ant.Task

      `bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType`

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

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

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

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

- - ### Constructor Detail

    - #### Filter

          public Filter()

  - ### Method Detail

    - #### setToken

          public void setToken(java.lang.String token)

      The token string without @ delimiters.
      Parameters:
        `token` - token to set

    - #### setValue

          public void setValue(java.lang.String value)

      The string that should replace the token during filtered copies.
      Parameters:
        `value` - token replace value

    - #### setFiltersfile

          public void setFiltersfile(java.io.File filtersFile)

      The file from which the filters must be read. This file must be a formatted as a property file.
      Parameters:
        `filtersFile` - filter file

    - #### execute

          public void execute()
                       throws BuildException

      Execute the task.
      Overrides:
        `execute` in class `Task`
      Throws:
        `BuildException` - on error

    - #### readFilters

          protected void readFilters()
                              throws BuildException

      Read the filters.
      Throws:
        `BuildException` - on error