A B C D E F G H I L M N O P R S T U

A

allBits - Variable in class BaseFileSystem

allBits is a bit set of all valid file numbers.

B

BaseFileSystem - class BaseFileSystem.

A BaseFileSystem represents a low-level file system in which files are referenced by file number.

BaseFileSystem() - Constructor for class BaseFileSystem

This constructor is disabled.

BaseFileSystem(String, int) - Constructor for class BaseFileSystem

new BaseFileSystem(nm, cap) returns a new base file system with a capacity of cap files.

base - Variable in class HierarchicalFileSystem

base is the base file system wrapped by this hierarchical file system.

C

capacity - Variable in class BaseFileSystem

capacity is the number of files in this base file system.

cat(String) - Static method in class TestHFS

cat(nm) changes the current working directory to nm.

cd() - Static method in class TestHFS

cd() changes the current working directory to "/".

cd(String) - Static method in class TestHFS

cd(dir) changes the current working directory to dir.

checkTestPath(String) - Method in class HierarchicalFileSystem

checkTestPath(pth) prints pth and its tail and last directory.

create(File) - Method in class BaseFileSystem

fs.create(f) returns the file number assigned to a new file f.

create(String) - Method in class HierarchicalFileSystem

fs.create(pth) creates a regular file with absolute path pth in fs.

createDir(String) - Method in class HierarchicalFileSystem

fs.createDir(pth) creates a new directory with absolute path pth in fs.

cwd - Static variable in class TestHFS

cwd is the current working directory without a trailing slash.

D

Directory - class Directory.

A Directory represents an operating system structure that is used to access the contents of a directory.

Directory() - Constructor for class Directory

new Directory() returns a new empty directory.

delete(int) - Method in class BaseFileSystem

fs.delete(fn) removes the file with file number fn from fs and returns fn.

delete(String) - Method in class HierarchicalFileSystem

fs.delete(pth) removes the regular file with absolute path pth from fs.

deleteDir(String) - Method in class HierarchicalFileSystem

fs.deleteDir(pth) removes the directory with absolute path pth from fs.

E

entries - Variable in class Directory

entries is the table of directory entries for this directory.

entries() - Method in class Directory

d.entries() returns an iterator for the directory entries in d, excluding the entries for "." and "..".

F

File - class File.

A File represents an operating system structure that is used to access the contents of a file.

File() - Constructor for class File

new File() returns a new file.

fileNumber - Variable in class File

fileNumber is the file number for this file.

fileNumber(Integer) - Static method in class File

File.fileNumber(fn) returns an int file number for the Integer fn.

fileSet() - Method in class BaseFileSystem

fs.fileSet() returns a string describing the set of files in fs.

files - Variable in class BaseFileSystem

files is the list of file accessors for this base file system.

files() - Method in class BaseFileSystem

fs.files() returns an iterator for the files in fs.

freeBits - Variable in class BaseFileSystem

freeBits is a bit set of the file numbers that are not in use.

G

getCapacity() - Method in class BaseFileSystem

fs.getCapacity() returns the maximum number of files for fs.

getCapacity() - Method in class HierarchicalFileSystem

fs.getCapacity() returns the maximum number of files for fs.

getFileNumber(String) - Method in class Directory

d.getFileNumber(nm) returns the file number in d whose simple name is nm, or File.NULL if there is no such file.

getFileNumber() - Method in class File

f.getFileNumber() returns the file number of f.

getLastDir(String) - Method in class HierarchicalFileSystem

getLastDir(pth) returns the directory before the tail of pth or null if there is no such directory.

getName() - Method in class BaseFileSystem

fs.getName() returns the file system name of fs as a string.

getTail(String) - Method in class HierarchicalFileSystem

getTail(pth) returns the name at the tail of pth.

H

HierarchicalFileSystem - class HierarchicalFileSystem.

A HierarchicalFileSystem represents a hierarchical file system in which files are referenced by UNIX style path names.

HierarchicalFileSystem(BaseFileSystem) - Constructor for class HierarchicalFileSystem

new HierarchicalFileSystem(bfs) returns a new hierarchical file system wrapper for the base file system bfs.

hfs - Static variable in class TestHFS

hfs is the test hierarchical file system.

I

initForTest() - Method in class HierarchicalFileSystem

initForTest() manually creates directories and files for testing purposes.

isDirectory() - Method in class Directory

d.isDirectory() returns true if f is a directory.

isDirectory() - Method in class File

f.isDirectory() returns true if f is a directory.

isSimpleName(String) - Static method in class Directory

Directory.isSimpleName(nm) returns true if nm is a valid simple file name.

L

link(String, int) - Method in class Directory

d.link(nm, fn) links fn into d with simple name nm and returns the file number that was previously linked with name nm.

ls() - Static method in class TestHFS

ls() prints the contents of the current working directory.

M

main(String[]) - Static method in class BaseFileSystem

main(args) is a test program for the BaseFileSystem class.

main(String[]) - Static method in class Directory

main(args) is a program to test the Directory class.

main(String[]) - Static method in class HierarchicalFileSystem

main(args) is a program for testing the private methods of the HierarchicalFileSystem class.

main(String[]) - Static method in class TestHFS

main(args) is a program for testing the public methods of the HierarchicalFileSystem class.

mk(String) - Static method in class TestHFS

mk(nm) creates a new file named nm in the current working directory.

mkdir(String) - Static method in class TestHFS

mkdir(nm) creates a new subdirectory named nm in the current working directory.

N

NO_FILE - Static variable in class BaseFileSystem

BaseFileSystem.NO_FILE is the file number for nonexistent files.

NULL - Static variable in class File

File.NULL is the file number for nonexistent files.

name - Variable in class BaseFileSystem

name is the name of this base file system.

O

open(int) - Method in class BaseFileSystem

fs.open(fn) returns an accessor for the file with file number fn, or null if there is no such file.

open(String) - Method in class HierarchicalFileSystem

fs.open(pth) returns a file access structure for the file with absolute path pth.

openDir(String) - Method in class HierarchicalFileSystem

fs.openDir(pth) returns a directory access structure for the directory with absolute path pth.

P

Panic - error Panic.

A Panic represents an error detected in the operating system code.

Panic() - Constructor for class Panic

new Panic() returns a new operating system code error with an empty message string.

Panic(String) - Constructor for class Panic

new Panic(msg) returns a new operating system code error with message string msg.

path(String) - Static method in class TestHFS

path(nm) returns the absolute path for nm.

pwd() - Static method in class TestHFS

pwd() prints the current working directory.

R

rm(String) - Static method in class TestHFS

rm(nm) removes the file named nm from the current working directory.

rmdir(String) - Static method in class TestHFS

rmdir(nm) removes the subdirectory named nm from the current working directory.

root - Variable in class HierarchicalFileSystem

root is the file number of the root directory of this hierarchical file system.

S

SEPARATOR - Static variable in class Directory

Directory.SEPARATOR is the direcory separator character in file paths.

setFileNumber(int) - Method in class File

f.setFileNumber(fn) sets the file number of f to fn.

size() - Method in class Directory

d.size() returns the number of directory entries in d, excluding the entries for "." and "..".

T

TestHFS - class TestHFS.

The TestHFS class provides a main method for testing the public methods of the HierarchicalFileSystem class.

TestHFS(BaseFileSystem) - Constructor for class TestHFS

This constructor is disabled.

toString() - Method in class BaseFileSystem

fs.toString() returns the class name and file system name of fs as a string.

toString() - Method in class File

f.toString() returns the class name and file number of f as a string.

toString() - Method in class HierarchicalFileSystem

fs.toString() returns the class name and file system name of fs as a string.

U

unlink(String) - Method in class Directory

d.unlink(nm) unlinks the file whose simple name is nm from d and returns the file.

A B C D E F G H I L M N O P R S T U