public class DirectoryFileFilter extends AbstractFileFilter implements java.io.Serializable
File
s that are directories.
For example, here is how to print out a list of the current directory's subdirectories:
File dir = FileUtils.current(); String[] files = dir.list(DirectoryFileFilter.INSTANCE); for (String file : files) { System.out.println(file); }
final Path dir = PathUtils.current(); final AccumulatorPathVisitor visitor = AccumulatorPathVisitor.withLongCounters(DirectoryFileFilter.INSTANCE); // // Walk one dir Files.walkFileTree(dir, Collections.emptySet(), 1, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getFileList()); // visitor.getPathCounters().reset(); // // Walk dir tree Files.walkFileTree(dir, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getDirList()); System.out.println(visitor.getFileList());
Serialization is deprecated and will be removed in 3.0.
FileFilterUtils.directoryFileFilter()
,
Serialized FormModifier and Type | Field and Description |
---|---|
static IOFileFilter |
DIRECTORY
Singleton instance of directory filter.
|
static IOFileFilter |
INSTANCE
Singleton instance of directory filter.
|
private static long |
serialVersionUID |
EMPTY_STRING_ARRAY
Modifier | Constructor and Description |
---|---|
protected |
DirectoryFileFilter()
Restrictive constructor.
|
Modifier and Type | Method and Description |
---|---|
boolean |
accept(java.io.File file)
Checks to see if the file is a directory.
|
java.nio.file.FileVisitResult |
accept(java.nio.file.Path file,
java.nio.file.attribute.BasicFileAttributes attributes)
Checks to see if the file is a directory.
|
accept, append, append, get, handle, postVisitDirectory, preVisitDirectory, toDefaultFileVisitResult, toFileVisitResult, toString, visitFile, visitFileFailed
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
and, matches, negate, or
public static final IOFileFilter DIRECTORY
public static final IOFileFilter INSTANCE
private static final long serialVersionUID
public boolean accept(java.io.File file)
accept
in interface java.io.FileFilter
accept
in interface IOFileFilter
accept
in class AbstractFileFilter
file
- the File to checkpublic java.nio.file.FileVisitResult accept(java.nio.file.Path file, java.nio.file.attribute.BasicFileAttributes attributes)
accept
in interface PathFilter
accept
in interface IOFileFilter
file
- the File to checkattributes
- the file's basic attributes (TODO may be null).