public final class PosixFilePermissions extends Object
PosixFilePermission
objects.Modifier and Type | Method | Description |
---|---|---|
static FileAttribute |
asFileAttribute |
Creates a FileAttribute , encapsulating a copy of the given file permissions, suitable for passing to the createFile or createDirectory methods. |
static Set |
fromString |
Returns the set of permissions corresponding to a given String representation. |
static String |
toString |
Returns the String representation of a set of permissions. |
public static String toString(Set<PosixFilePermission> perms)
String
representation of a set of permissions. It is guaranteed that the returned String
can be parsed by the fromString(java.lang.String)
method. If the set contains null
or elements that are not of type PosixFilePermission
then these elements are ignored.
perms
- the set of permissionspublic static Set<PosixFilePermission> fromString(String perms)
String
representation. The perms
parameter is a String
representing the permissions. It has 9 characters that are interpreted as three sets of three. The first set refers to the owner's permissions; the next to the group permissions and the last to others. Within each set, the first character is 'r'
to indicate permission to read, the second character is 'w'
to indicate permission to write, and the third character is 'x'
for execute permission. Where a permission is not set then the corresponding character is set to '-'
.
Usage Example: Suppose we require the set of permissions that indicate the owner has read, write, and execute permissions, the group has read and execute permissions and others have none.
Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x---");
perms
- string representing a set of permissionsIllegalArgumentException
- if the string cannot be converted to a set of permissionspublic static FileAttribute<Set<PosixFilePermission>> asFileAttribute(Set<PosixFilePermission> perms)
FileAttribute
, encapsulating a copy of the given file permissions, suitable for passing to the createFile
or createDirectory
methods.perms
- the set of permissionsname
"posix:permissions"
ClassCastException
- if the set contains elements that are not of type
PosixFilePermission
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/file/attribute/PosixFilePermissions.html