org.jboss.remoting.samples.chat.utility
Class Parameters

java.lang.Object
  org.jboss.remoting.samples.chat.utility.Parameters

public class Parameters
extends java.lang.Object

Title: chat.utility.Parameters

Description: Manages parameters to the application.

A parameter's value is taken from:

1. the primary source, which is
   • the command line if the program is standalone
   • the web.conf file if the program is a servlet
   or, if the parameter is not given in the primary source,
2. a configuration file property with the same name, or, if there is no such configuration file property
3. the default value given in this file, or, if a default value is not given in this file,
4. null

Copyright: Copyright (c) 2004

Version:

1.0

Author:

Ron Sigal

Constructor Summary

Parameters()

Method Summary

static java.lang.String	getParameter(java.lang.String name) getParameter() returns stored parameter values
static java.lang.String	getParameter(java.lang.String name, java.lang.String defaultValue) getParameter() returns stored parameter values
static void	initParameters(javax.servlet.ServletConfig servletConfig) initParameters() puts parameters into a Hashtable.
static void	initParameters(java.lang.String[] args) initParameters() puts parameters into a Hashtable.
static void	main(java.lang.String[] args) main() implements unit tests.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Parameters

public Parameters()

Method Detail

initParameters

public static void initParameters(java.lang.String[] args)

initParameters() puts parameters into a Hashtable.

For each element of args of the form "string₁=string₂", the value "string₂" is a parameter with key "string₁".

Parameters:

args: - an array of Strings. These are meant to be the command line parameters.

initParameters

public static void initParameters(javax.servlet.ServletConfig servletConfig)

initParameters() puts parameters into a Hashtable.

Parameters:

servletConfig/code>: - the primary source of parameters

getParameter

public static java.lang.String getParameter(java.lang.String name)

getParameter() returns stored parameter values

Parameters:

name - name of parameter whose value is requested

Returns:

if name is a key in parameters, returns the value associated with name. Otherwise, returns null.

getParameter

public static java.lang.String getParameter(java.lang.String name,
                                            java.lang.String defaultValue)

getParameter() returns stored parameter values

Parameters:

name - name of parameter whose value is requested

Returns:

if name is a key in parameters, returns the value associated with name. Otherwise, returns null.

main

public static void main(java.lang.String[] args)

main() implements unit tests.