Package org.apache.commons.io.filefilter
Class CanReadFileFilter
java.lang.Object
org.apache.commons.io.filefilter.AbstractFileFilter
org.apache.commons.io.filefilter.CanReadFileFilter
- All Implemented Interfaces:
FileFilter,FilenameFilter,Serializable,FileVisitor<Path>,PathMatcher,PathFilter,PathVisitor,IOFileFilter
This filter accepts
Files that can be read.
Example, showing how to print out a list of the current directory's readable files:
Using Classic IO
File dir = FileUtils.current();
String[] files = dir.list(CanReadFileFilter.CAN_READ);
for (String file : files) {
System.out.println(file);
}
Example, showing how to print out a list of the current directory's un-readable files:
File dir = FileUtils.current();
String[] files = dir.list(CanReadFileFilter.CANNOT_READ);
for (String file : files) {
System.out.println(file);
}
Example, showing how to print out a list of the current directory's read-only files:
File dir = FileUtils.current();
String[] files = dir.list(CanReadFileFilter.READ_ONLY);
for (String file : files) {
System.out.println(file);
}
Deprecating Serialization
Serialization is deprecated and will be removed in 3.0.
- Since:
- 1.3
- See Also:
-
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final IOFileFilterSingleton instance of readable filterstatic final IOFileFilterSingleton instance of not readable filterstatic final IOFileFilterSingleton instance of read-only filterFields inherited from interface org.apache.commons.io.filefilter.IOFileFilter
EMPTY_STRING_ARRAY -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbooleanChecks to see if the file can be read.accept(Path file, BasicFileAttributes attributes) Checks to see if the file can be read.Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter
accept, handle, postVisitDirectory, preVisitDirectory, toString, visitFile, visitFileFailedMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.io.filefilter.IOFileFilter
and, matches, negate, or
-
Field Details
-
CAN_READ
Singleton instance of readable filter -
CANNOT_READ
Singleton instance of not readable filter -
READ_ONLY
Singleton instance of read-only filter
-
-
Constructor Details
-
CanReadFileFilter
protected CanReadFileFilter()Restrictive constructor.
-
-
Method Details
-
accept
Checks to see if the file can be read.- Specified by:
acceptin interfaceFileFilter- Specified by:
acceptin interfaceIOFileFilter- Overrides:
acceptin classAbstractFileFilter- Parameters:
file- the File to check.- Returns:
trueif the file can be read, otherwisefalse.
-
accept
Checks to see if the file can be read.- Specified by:
acceptin interfaceIOFileFilter- Specified by:
acceptin interfacePathFilter- Parameters:
file- the File to check.attributes- the file's basic attributes (TODO may be null).- Returns:
trueif the file can be read, otherwisefalse.- Since:
- 2.9.0
-