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java.lang.Object org.apache.commons.io.filefilter.AbstractFileFilter org.apache.commons.io.filefilter.EmptyFileFilter
public class EmptyFileFilter
This filter accepts files or directories that are empty.
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:
File dir = new File("."); String[] files = dir.list( 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:
File dir = new File("."); String[] files = dir.list( EmptyFileFilter.NOT_EMPTY ); for ( int i = 0; i < files.length; i++ ) { System.out.println(files[i]); }
Field Summary | |
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static IOFileFilter |
EMPTY
Singleton instance of empty filter |
static IOFileFilter |
NOT_EMPTY
Singleton instance of not-empty filter |
Constructor Summary | |
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protected |
EmptyFileFilter()
Restrictive consructor. |
Method Summary | |
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boolean |
accept(File file)
Checks to see if the file is empty. |
Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter |
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accept, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final IOFileFilter EMPTY
public static final IOFileFilter NOT_EMPTY
Constructor Detail |
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protected EmptyFileFilter()
Method Detail |
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public boolean accept(File file)
accept
in interface FileFilter
accept
in interface IOFileFilter
accept
in class AbstractFileFilter
file
- the file or directory to check
true
if the file or directory
is empty, otherwise false
.
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