## 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
`FilterMapper()`

Method Summary
`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.