FirstMatchMapper (Apache Ant API)
Keywords: org.apache.tools.ant.util.FirstMatchMapper class

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## org.apache.tools.ant.util
Class FirstMatchMapper

    java.lang.Object
      org.apache.tools.ant.util.ContainerMapper
          org.apache.tools.ant.util.FirstMatchMapper

All Implemented Interfaces:
  FileNameMapper

    public class FirstMatchMapper

extends ContainerMapper

A `ContainerMapper` that returns the results of its first constituent `FileNameMapper`s that matches.

Since:
  Ant 1.8.0

Constructor Summary
`FirstMatchMapper()`

Method Summary
`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

### FirstMatchMapper

    public FirstMatchMapper()

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.
  Returns:
    an array of strings if the ruld applies to the source file, or null if it does not.

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