ChainedMapper (Apache Ant API)
Date: 2018-03-24

org.apache.tools.ant.util

## Class ChainedMapper

- java.lang.Object
- - org.apache.tools.ant.util.ContainerMapper
  - - org.apache.tools.ant.util.ChainedMapper

- All Implemented Interfaces:
    FileNameMapper

      public class ChainedMapper
      extends ContainerMapper

  A `ContainerMapper` that chains the results of the first nested `FileNameMapper`s into sourcefiles for the second, the second to the third, and so on, returning the resulting mapped filenames from the last nested `FileNameMapper`.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ChainedMapper()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String[]` | `mapFileName(java.lang.String sourceFileName)` Returns an array containing the target filename(s) for the given source file.

    - ### Methods inherited from class org.apache.tools.ant.util.ContainerMapper

      `add, addConfigured, addConfiguredMapper, contains, getMappers, setFrom, setTo`

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

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

- - ### Constructor Detail

    - #### ChainedMapper

          public ChainedMapper()

  - ### Method Detail

    - #### mapFileName

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

      Returns an array containing the target filename(s) for the given source file.

      if the given rule doesn't apply to the source file, implementation must return null. SourceFileScanner will then omit the source file in question.

      .
      Parameters:
        `sourceFileName` - the name of the source file relative to some given basedirectory. Might be `null` for resources that don't provide a name.
      Returns:
        an array of strings if the rule applies to the source file, or null if it does not.