| Methods Summary |
|---|
| public abstract java.lang.String | canonicalize(java.lang.String path)
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| public abstract boolean | checkAccess(java.io.File f, boolean write)Check whether the file or directory denoted by the given abstract
pathname may be accessed by this process. If the second argument is
false, then a check for read access is made; if the second
argument is true, then a check for write (not read-write)
access is made. Return false if access is denied or an I/O error
occurs.
|
| public abstract int | compare(java.io.File f1, java.io.File f2)Compare two abstract pathnames lexicographically.
|
| public abstract boolean | createDirectory(java.io.File f)Create a new directory denoted by the given abstract pathname,
returning true if and only if the operation succeeds.
|
| public abstract boolean | createFileExclusively(java.lang.String pathname)Create a new empty file with the given pathname. Return
true if the file was created and false if a
file or directory with the given pathname already exists. Throw an
IOException if an I/O error occurs.
|
| public abstract boolean | delete(java.io.File f)Delete the file or directory denoted by the given abstract pathname,
returning true if and only if the operation succeeds.
|
| public abstract boolean | deleteOnExit(java.io.File f)Arrange for the file or directory denoted by the given abstract
pathname to be deleted when the VM exits, returning true if
and only if the operation succeeds.
|
| public abstract java.lang.String | fromURIPath(java.lang.String path)Post-process the given URI path string if necessary. This is used on
win32, e.g., to transform "/c:/foo" into "c:/foo". The path string
still has slash separators; code in the File class will translate them
after this method returns.
|
| public abstract int | getBooleanAttributes(java.io.File f)Return the simple boolean attributes for the file or directory denoted
by the given abstract pathname, or zero if it does not exist or some
other I/O error occurs.
|
| private static boolean | getBooleanProperty(java.lang.String prop, boolean defaultVal)
String val = System.getProperty(prop);
if (val == null) return defaultVal;
if (val.equalsIgnoreCase("true")) {
return true;
} else {
return false;
}
|
| public abstract java.lang.String | getDefaultParent()Return the parent pathname string to be used when the parent-directory
argument in one of the two-argument File constructors is the empty
pathname.
|
| public static native java.io.FileSystem | getFileSystem()Return the FileSystem object representing this platform's local
filesystem.
|
| public abstract long | getLastModifiedTime(java.io.File f)Return the time at which the file or directory denoted by the given
abstract pathname was last modified, or zero if it does not exist or
some other I/O error occurs.
|
| public abstract long | getLength(java.io.File f)Return the length in bytes of the file denoted by the given abstract
pathname, or zero if it does not exist, is a directory, or some other
I/O error occurs.
|
| public abstract char | getPathSeparator()Return the local filesystem's path-separator character.
|
| public abstract char | getSeparator()Return the local filesystem's name-separator character.
|
| public abstract int | hashCode(java.io.File f)Compute the hash code of an abstract pathname.
|
| public abstract boolean | isAbsolute(java.io.File f)Tell whether or not the given abstract pathname is absolute.
|
| public abstract java.lang.String[] | list(java.io.File f)List the elements of the directory denoted by the given abstract
pathname. Return an array of strings naming the elements of the
directory if successful; otherwise, return null.
|
| public abstract java.io.File[] | listRoots()List the available filesystem roots.
|
| public abstract java.lang.String | normalize(java.lang.String path)Convert the given pathname string to normal form. If the string is
already in normal form then it is simply returned.
|
| public abstract int | prefixLength(java.lang.String path)Compute the length of this pathname string's prefix. The pathname
string must be in normal form.
|
| public abstract boolean | rename(java.io.File f1, java.io.File f2)Rename the file or directory denoted by the first abstract pathname to
the second abstract pathname, returning true if and only if
the operation succeeds.
|
| public abstract java.lang.String | resolve(java.io.File f)Resolve the given abstract pathname into absolute form. Invoked by the
getAbsolutePath and getCanonicalPath methods in the File class.
|
| public abstract java.lang.String | resolve(java.lang.String parent, java.lang.String child)Resolve the child pathname string against the parent.
Both strings must be in normal form, and the result
will be in normal form.
|
| public abstract boolean | setLastModifiedTime(java.io.File f, long time)Set the last-modified time of the file or directory denoted by the
given abstract pathname, returning true if and only if the
operation succeeds.
|
| public abstract boolean | setReadOnly(java.io.File f)Mark the file or directory denoted by the given abstract pathname as
read-only, returning true if and only if the operation
succeeds.
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