Package org.apache.commons.io.filefilter

# Class DelegateFileFilter

java.lang.Object
org.apache.commons.io.filefilter.AbstractFileFilter
org.apache.commons.io.filefilter.DelegateFileFilter

All Implemented Interfaces:
  `FileFilter`, `FilenameFilter`, `Serializable`, `FileVisitor<Path>`, `PathMatcher`, `PathFilter`, `PathVisitor`, `IOFileFilter`

public class DelegateFileFilter extends AbstractFileFilter implements Serializable
This class turns a Java FileFilter or FilenameFilter into an IO FileFilter.

## Deprecating Serialization

Serialization is deprecated and will be removed in 3.0.

Since:
  1.0
See Also:
  - `FileFilterUtils.asFileFilter(FileFilter)`
  - `FileFilterUtils.asFileFilter(FilenameFilter)`
  - Serialized Form

- ## Field Summary

  ### Fields inherited from interface org.apache.commons.io.filefilter.IOFileFilter

  `EMPTY_STRING_ARRAY`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `DelegateFileFilter(FileFilter fileFilter)`
  Constructs a delegate file filter around an existing FileFilter.
  `DelegateFileFilter(FilenameFilter fileNameFilter)`
  Constructs a delegate file filter around an existing FilenameFilter.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `accept(File file)`
  Tests the filter.
  `boolean`
  `accept(File dir, String name)`
  Tests the filter.
  `String`
  `toString()`
  Provide a String representation of this file filter.

  ### Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter

  `handle, postVisitDirectory, preVisitDirectory, visitFile, visitFileFailed`

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

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

  ### Methods inherited from interface org.apache.commons.io.filefilter.IOFileFilter

  `accept, and, matches, negate, or`

- ## Constructor Details

  - ### DelegateFileFilter

    public DelegateFileFilter(FileFilter fileFilter)
    Constructs a delegate file filter around an existing FileFilter.
    Parameters:
      `fileFilter` - the filter to decorate.

  - ### DelegateFileFilter

    public DelegateFileFilter(FilenameFilter fileNameFilter)
    Constructs a delegate file filter around an existing FilenameFilter.
    Parameters:
      `fileNameFilter` - the filter to decorate.

- ## Method Details

  - ### accept

    public boolean accept(File file)
    Tests the filter.
    Specified by:
      `accept` in interface `FileFilter`
    Specified by:
      `accept` in interface `IOFileFilter`
    Overrides:
      `accept` in class `AbstractFileFilter`
    Parameters:
      `file` - the file to check.
    Returns:
      true if the filter matches.

  - ### accept

    public boolean accept(File dir, String name)
    Tests the filter.
    Specified by:
      `accept` in interface `FilenameFilter`
    Specified by:
      `accept` in interface `IOFileFilter`
    Overrides:
      `accept` in class `AbstractFileFilter`
    Parameters:
      `dir` - the directory.
      `name` - the file name in the directory.
    Returns:
      true if the filter matches.

  - ### toString

    public String toString()
    Provide a String representation of this file filter.
    Overrides:
      `toString` in class `AbstractFileFilter`
    Returns:
      a String representation.