edu.nmu.os.shell
Interface CommandLine

All Known Implementing Classes:

CommandLineImpl

public interface CommandLine

Represents a shell command line

A class implementing this interface is instantiated by the Shell. The Shell then uses the object to generate Commands from the Shell's InputStream.

Since:

jdk1.4

Version:

0.1, Jan 24, 2003 7:16:18 PM

Author:

Matt Murphy

Method Summary

void	append(java.lang.String s) Appends the given String to the CommandLine
Command[]	getCommands() Generates Commands from the CommandLine
java.lang.String[]	getUnresolved() Returns the names of any unresolvable programs
boolean	isComplete() Determines whether or not the CommandLine is syntactically complete
boolean	isExit() Determines whether or not the CommandLine should exit the current Shell

Method Detail

isComplete

public boolean isComplete()

Determines whether or not the CommandLine is syntactically complete

Returns:

true if it is complete, false otherwise

append

public void append(java.lang.String s)

Appends the given String to the CommandLine

Parameters:

s - the String to be appended

getCommands

public Command[] getCommands()
                      throws java.lang.Exception

Generates Commands from the CommandLine

Returns:

the Commands

Throws:

java.lang.Exception

getUnresolved

public java.lang.String[] getUnresolved()

Returns the names of any unresolvable programs

Returns:

the names

isExit

public boolean isExit()

Determines whether or not the CommandLine should exit the current Shell

Returns:

true if the ShellImpl should exit, false otherwise