public class EmptyFileFilter extends Object implements FileFilter, Serializable
If the File
is a directory it checks that it contains no files.
Example, showing how to print out a list of the current directory's empty files/directories:
FileSystemManager fsManager = VFS.getManager(); FileObject dir = fsManager.toFileObject(new File(".")); FileObject[] files = dir.findFiles(new FileFilterSelector(EmptyFileFilter.EMPTY)); for (int i = 0; i < files.length; i++) { System.out.println(files[i]); }
Example, showing how to print out a list of the current directory's non-empty files/directories:
FileSystemManager fsManager = VFS.getManager(); FileObject dir = fsManager.toFileObject(new File(".")); FileObject[] files = dir.findFiles(new FileFilterSelector(EmptyFileFilter.NOT_EMPTY)); for (int i = 0; i < files.length; i++) { System.out.println(files[i]); }
Modifier and Type | Field and Description |
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static FileFilter |
EMPTY
Singleton instance of empty filter.
|
static FileFilter |
NOT_EMPTY
Singleton instance of not-empty filter.
|
Modifier | Constructor and Description |
---|---|
protected |
EmptyFileFilter()
Restrictive constructor.
|
Modifier and Type | Method and Description |
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boolean |
accept(FileSelectInfo fileSelectInfo)
Checks to see if the file is empty.
|
public static final FileFilter EMPTY
public static final FileFilter NOT_EMPTY
public boolean accept(FileSelectInfo fileSelectInfo) throws FileSystemException
accept
in interface FileFilter
fileSelectInfo
- the file or directory to checktrue
if the file or directory is empty, otherwise false
.FileSystemException
- Thrown for file system errors.Copyright © 2002–2020 The Apache Software Foundation. All rights reserved.