? HiddenFileFilter
java.lang.Object
org.apache.commons.io.filefilter.AbstractFileFilter
org.apache.commons.io.filefilter.HiddenFileFilter
- ????????:
FileFilter
,FilenameFilter
,Serializable
,FileVisitor<Path>
,PathFilter
,PathVisitor
,IOFileFilter
This filter accepts
File
s that are hidden.
Example, showing how to print out a list of the current directory's hidden files:
Using Classic IO
File dir = new File("."); String[] files = dir.list(HiddenFileFilter.HIDDEN); for (String file : files) { System.out.println(file); }
Example, showing how to print out a list of the current directory's visible (i.e. not hidden) files:
File dir = new File("."); String[] files = dir.list(HiddenFileFilter.VISIBLE); for (String file : files) { System.out.println(file); }
Using NIO
final Path dir = Paths.get(""); final AccumulatorPathVisitor visitor = AccumulatorPathVisitor.withLongCounters(HiddenFileFilter.HIDDEN); // // 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());
- ???????:
- 1.3
- ????:
-
????
????????????static final IOFileFilter
Singleton instance of hidden filterstatic final IOFileFilter
Singleton instance of visible filter???????? org.apache.commons.io.filefilter.IOFileFilter
EMPTY_STRING_ARRAY
-
?????
??? -
????
??????????boolean
Checks to see if the file is hidden.accept
(Path file, BasicFileAttributes attributes) Checks to see if the file is hidden.??????? org.apache.commons.io.filefilter.AbstractFileFilter
accept, handle, postVisitDirectory, preVisitDirectory, toString, visitFile, visitFileFailed
??????? java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
???????? org.apache.commons.io.filefilter.IOFileFilter
and, negate, or
-
??????
-
HIDDEN
Singleton instance of hidden filter -
VISIBLE
Singleton instance of visible filter
-
-
???????
-
HiddenFileFilter
protected HiddenFileFilter()Restrictive constructor.
-
-
??????
-
accept
Checks to see if the file is hidden.- ???:
accept
????FileFilter
- ???:
accept
????IOFileFilter
- ??:
accept
???AbstractFileFilter
- ??:
file
- the File to check- ??:
true
if the file is hidden, otherwisefalse
.
-
accept
Checks to see if the file is hidden.- ???:
accept
????IOFileFilter
- ???:
accept
????PathFilter
- ??:
file
- the File to checkattributes
- the file's basic attributes (TODO may be null).- ??:
true
if the file is hidden, otherwisefalse
.- ???????:
- 2.9.0
-