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java.lang.Objectjavax.swing.filechooser.FileFilter
nl.nikhef.slcshttps.gui.FileNameExtFilter
public final class FileNameExtFilter
This class is a copy of
javax.swing.filechooser.FileNameExtensionFilter
which is only
available in JDK1.6 onwards. Documentation is unchanged, only added where
missing.
An implementation of FileFilter
that filters using a
specified set of extensions. The extension for a file is the
portion of the file name after the last ".". Files whose name does
not contain a "." have no file name extension. File name extension
comparisons are case insensitive.
The following example creates a
FileNameExtFilter
that will show jpg
files:
FileFilter filter = new FileNameExtFilter("JPEG file", "jpg", "jpeg"); JFileChooser fileChooser = ...; fileChooser.addChoosableFileFilter(filter);
FileFilter
,
JFileChooser.setFileFilter(javax.swing.filechooser.FileFilter)
,
JFileChooser.addChoosableFileFilter(javax.swing.filechooser.FileFilter)
,
JFileChooser.getFileFilter()
Field Summary | |
---|---|
private String |
description
Description of this filter. |
private String[] |
extensions
Known extensions. |
private String[] |
lowerCaseExtensions
Cached extensions. |
Constructor Summary | |
---|---|
FileNameExtFilter(String description,
String... extensions)
Creates a FileNameExtFilter with the specified
description and file name extensions. |
Method Summary | |
---|---|
boolean |
accept(File f)
Tests the specified file, returning true if the file is accepted, false otherwise. |
String |
getDescription()
The description of this filter. |
String[] |
getExtensions()
Returns the set of file name extensions files are tested against. |
String |
toString()
Returns a string representation of the FileNameExtFilter . |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
private final String description
private final String[] extensions
private final String[] lowerCaseExtensions
Constructor Detail |
---|
public FileNameExtFilter(String description, String... extensions)
FileNameExtFilter
with the specified
description and file name extensions. The returned FileNameExtFilter
will accept all directories and any
file with a file name extension contained in extensions
.
description
- textual description for the filter, may be
null
extensions
- the accepted file name extensions
IllegalArgumentException
- if extensions is null
, empty,
contains null
, or contains an empty stringaccept(java.io.File)
Method Detail |
---|
public boolean accept(File f)
FileFilter
, or the file is a directory.
accept
in class FileFilter
f
- the File
to test
public String getDescription()
getDescription
in class FileFilter
public String[] getExtensions()
public String toString()
FileNameExtFilter
.
This method is intended to be used for debugging purposes,
and the content and format of the returned string may vary
between implementations.
toString
in class Object
FileNameExtFilter
|
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nl.nikhef.slcshttps | Mischa Sallé - msalle(AT)nikhef.nl |