org.apache.tools.ant.types.mappers

## Class FilterMapper

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.types.DataType
    - - org.apache.tools.ant.types.FilterChain
      - - org.apache.tools.ant.types.mappers.FilterMapper

- All Implemented Interfaces:
    java.lang.Cloneable, FileNameMapper

      public class FilterMapper
      extends FilterChain
      implements FileNameMapper

  This is a FileNameMapper based on a FilterChain.

- - ### Field Summary

    - ### Fields inherited from class org.apache.tools.ant.types.DataType

      `checked, ref`

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

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `FilterMapper()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String[]` | `mapFileName(java.lang.String sourceFileName)` Return the result of the filters on the sourcefilename.
    `void` | `setFrom(java.lang.String from)` From attribute not supported.
    `void` | `setTo(java.lang.String to)` From attribute not supported.

    - ### Methods inherited from class org.apache.tools.ant.types.FilterChain

      `add, addClassConstants, addContainsRegex, addDeleteCharacters, addEscapeUnicode, addExpandProperties, addFilterReader, addHeadFilter, addIgnoreBlank, addLineContains, addLineContainsRegExp, addPrefixLines, addReplaceRegex, addReplaceString, addReplaceTokens, addStripJavaComments, addStripLineBreaks, addStripLineComments, addSuffixLines, addTabsToSpaces, addTailFilter, addTokenFilter, addTrim, dieOnCircularReference, getFilterReaders, setRefid`

    - ### Methods inherited from class org.apache.tools.ant.types.DataType

      `checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes, toString`

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

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

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

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

- - ### Constructor Detail

    - #### FilterMapper

          public FilterMapper()

  - ### Method Detail

    - #### setFrom

          public void setFrom(java.lang.String from)

      From attribute not supported.
      Specified by:
        `setFrom` in interface `FileNameMapper`
      Parameters:
        `from` - a string
      Throws:
        `BuildException` - always

    - #### setTo

          public void setTo(java.lang.String to)

      From attribute not supported.
      Specified by:
        `setTo` in interface `FileNameMapper`
      Parameters:
        `to` - a string
      Throws:
        `BuildException` - always

    - #### mapFileName

          public java.lang.String[] mapFileName(java.lang.String sourceFileName)

      Return the result of the filters on the sourcefilename.
      Specified by:
        `mapFileName` in interface `FileNameMapper`
      Parameters:
        `sourceFileName` - the filename to map
      Returns:
        a one-element array of converted filenames, or null if the filterchain returns an empty string.