Server-Side JavaScript Guide

What's New in this Release

Support for JavaScript 1.4

Changes to the JavaScript Application Manager

What You Should Already Know

JavaScript Versions

Where to Find JavaScript Information

Upgrading from an Earlier Release

Backward Compatibility with Earlier Releases

Document Conventions

What Is JavaScript?

Core, Client-Side, and Server-Side JavaScript

Core JavaScript

Client-Side JavaScript

Server-Side JavaScript

JavaScript and Java

Debugging JavaScript

Visual JavaScript

JavaScript and the ECMA Specification

Relationship Between JavaScript and ECMA Versions

JavaScript Documentation vs. the ECMA Specification

JavaScript and ECMA Terminology

Part 1 Developing Server Applications

Architecture of JavaScript Applications

System Requirements

Configuration Information

Enabling Server-Side JavaScript

Protecting the Application Manager

Setting Up for LiveConnect

Locating the Compiler

Basic Steps in Building an Application

JavaScript Application Manager Overview

Creating Application Source Files

Compiling an Application

Installing a New Application

Application URLs

Controlling Access to an Application

Modifying an Application

Removing an Application

Starting, Stopping, and Restarting an Application

Running an Application

Debugging an Application

Using the Application Manager for Debugging

Using Debug URLs

Using the debug Function

Deploying an Application

Application Manager Details

Configuring Default Settings

Under the Hood

Part 2 Server-Side JavaScript Features

About Server-Side JavaScript Sample Applications

Hello World

What Hello World Does

Looking at the Source Script

Modifying Hello World

Hangman

Looking at the Source Files

Debugging Hangman

What to Do Where

Overview of Runtime Processing

Server-Side Language Overview

Prototypes

Usage

Environment

Classes and Objects

Embedding JavaScript in HTML

The SERVER tag

Backquotes

When to Use Each Technique

Runtime Processing on the Server

Constructing the HTML Page

Generating HTML

Flushing the Output Buffer

Changing to a New Client Request

Accessing CGI Variables

Communicating Between Server and Client

Sending Values from Client to Server

Sending Values from Server to Client

Using Cookies

Garbage Collection

Error Handling in Server-Side JavaScript

Overview of the Predefined Objects

The request Object

Properties

Working with Image Maps

The client Object

Properties

Uniquely Referring to the client Object

Creating a Custom client Object

The project Object

Properties

Sharing the project Object

The server Object

Properties

Sharing the server Object

Techniques for Maintaining the client Object

Comparing Client-Maintenance Techniques

Client-Side Techniques

Server-Side Techniques

The Lifetime of the client Object

Manually Appending client Properties to URLs

Sharing Objects Safely with Locking

Using Instances of Lock

Special Locks for project and server Objects

Avoiding Deadlock

Mail Service

File System Service

Security Considerations

Creating a File Object

Opening and Closing a File

Locking Files

Working with Files

Example

Working with External Libraries

Guidelines for Writing Native Functions

Identifying Library Files

Registering Native Functions

Using Native Functions in JavaScript

Request and Response Manipulation

Request Header

Request Body

Response Header

Part 3 LiveWire Database Service

Interactions with Databases

Approaches to Connecting

Database Connection Pools

Single-Threaded and Multithreaded Databases

Guidelines

Managing Connection Pools

Sharing a Fixed Set of Connection Pools

Sharing an Array of Connection Pools

Individual Database Connections

Maintaining a Connection Across Requests

Waiting for a Connection

Retrieving an Idle Connection

Interacting with a Relational Database

Automatically Displaying Query Results

Executing Arbitrary SQL Statements

Manipulating Query Results with Cursors

Creating a Cursor

Displaying Record Values

Displaying Expressions and Aggregate Functions

Navigating with Cursors

Working with Columns

Changing Database Information

Managing Transactions

Using the Transaction-Control Methods

Working with Binary Data

Calling Stored Procedures

Exchanging Information

Steps for Using Stored Procedures

Registering the Stored Procedure

Defining a Prototype for a Stored Procedure

Executing the Stored Procedure

Working with Result Sets

Working with Return Values

Working with Output Parameters

Informix and Sybase Exceptions

About LiveWire Database Service

Checking Your Database Configuration

Supported Database Clients and ODBC Drivers

DB2

Informix

Informix Remote

Informix Local

ODBC

ODBC Data Source Names (NT only)

OpenLink ODBC Driver (Solaris only)

Visigenic ODBC Driver (Unix only)

Oracle

Oracle Remote

Oracle Local

Sybase

Sybase Remote

Sybase Local

Sybase (Unix only)

About Data Type Conversion

Working with Dates and Databases

Data-Type Conversion by Database

Checking for Error Conditions

Return Values

Number

Object

Boolean

String

Void

Error Methods

Status Codes

About Videoapp and Oldvideo Sample Applications

Configuring Your Environment

Connecting to the Database and Recompiling

Creating the Database

Running Videoapp

Looking at the Source Files

Application Architecture

Modifying videoapp

Part 4 Working with LiveConnect

What Is LiveConnect?

Working with Wrappers

JavaScript to Java Communication

The Packages Object

Working with Java Arrays

Package and Class References

Arguments of Type char

Example of JavaScript Calling Java

Java to JavaScript Communication

Using the LiveConnect Classes

Accessing Server-Side JavaScript

Data Type Conversions

JavaScript to Java Conversions

Java to JavaScript Conversions

Last Updated: 09/29/99 18:01:47