org.crsh.shell.impl.command.spi
Interface CommandResolver

All Known Implementing Classes:

LanguageCommandResolver, SystemResolver

public interface CommandResolver

Resolve commands.

Author:

Julien Viet

Method Summary

Iterable<Map.Entry<String,String>>	getDescriptions()
Command<?>	resolveCommand(String name) Attempt to obtain a command.

Method Detail

getDescriptions

Iterable<Map.Entry<String,String>> getDescriptions()

Returns:

the known command names by this resolver, the returned map keys are the command names and the values are the corresponding one line description of the command

resolveCommand

Command<?> resolveCommand(String name)
                          throws CommandException,
                                 NullPointerException

Attempt to obtain a command. Null is returned when such command does not exist.

Parameters:

name - the command name

Returns:

the command shell

Throws:

CommandException - if an error occured preventing the command creation

NullPointerException - if the name argument is null