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Preface

Introducing JClass Field * Assumptions

Typographical Conventions in this Manual * Overview of the Manual

Related Documents * Technical Support

Product Feedback and Announcements


Introducing JClass Field

JClass Field is a set of Java components that permits the collection, validation, and display of textual, calendar, and numeric data. You can use the components of JClass Field for data entry applications. You can present a list of pre-programmed choices in a combo field or in a spin field from which users make a selection, or you can permit them to type into various fields. In the latter case, you can provide both a validation format and a "prompt" format. The validation format accepts a certain class of characters at each input position, for example, three letters followed by four numbers. The prompt format gives the user an idea of what data the field is expecting by filling the field with a generic example. The user types over the prompt text, replacing it with valid data. Using JClass Field, your applications can collect calendar, numeric, and textual information. Built-in validation methods permit you to apply various consistency checks on the information and to give the end-user visual and audible feedback when the validator detects an incorrect entry.

All JClass Field components are written entirely in Java; so as long as the Java implementation for a particular platform works, JClass Field will work.

You can freely distribute Java applets and applications containing JClass components according to the terms of the License Agreement at the beginning of the Getting Started booklet.

Feature Overview

You can set the properties of JClass Field components to determine how your data entry elements will look and behave. You can govern:

JClass Field also provides several methods which:


Typographical Conventions in this Manual

Typewriter Font

Used for:

  • Java language source code and examples of file contents.
  • JClass Field and Java classes, objects, methods, properties, constants and events.
  • HTML documents, tags, and attributes.
  • Commands that you enter on the screen.

Italic Text

Used for:

  • Pathnames, filenames, URLs, programs and method parameters.
  • New terms as they are introduced, and important words requiring emphasis.
  • Figure and table titles.
  • The names of other documents referenced in this manual, such as Java in a Nutshell.

Bold

Used for:

  • Keyboard key names and menu references.


Assumptions

This manual assumes that you have some experience with the Java programming language. You should have a basic understanding of object-oriented programming and Java programming concepts such as classes, methods, and packages before proceeding with this manual. See "Related Documents" later in this section of the manual for additional sources of Java-related information.


Overview of the Manual

Part I --"Using JClass Field" describes how to program with the JClass Field components.

Chapter 1, "JClass Field Basics", should be read by all programmers learning JClass Field. It introduces the JClass Field components, and provides basic terminology and conventions used throughout the documentation.
Chapter 2, "JClass Field's Properties", describes the Java Bean properties that are exposed in the Beans Development Kit (BDK) and other integrated development environment (IDE) tools.
Chapter 3, "Building a Field", provides hands-on examples of creating different kinds of fields and detailed information on data binding with JClass Field.
Capter 4, "Example Code for Common Fields", contains extensive description of the examples included in the distribution.

Part II --"Reference Appendices", contains additional detailed technical reference on all JClass Field properties and other reference information related to programming with JClass Field.

Appendix A, "JClass Field Property Listings", lists all of the available properties in JClass Field and their default values.
Appendix B, "Distributing Applets and Applications on a Web Server", provides a method of releasing your applet or application to your users.
Appendix C, "Porting JClass 3.6.x Applications", shows on how to convert your code created with earlier versions of JClass Field to JClass Field 4.5.


Related Documents

The following is a selection of useful references to Java and Java Beans programming:

These documents are not required to develop applications using JClass Field, but they can provide useful background information on various aspects of the Java programming language.


Technical Support

Many of the initial questions you may have may relate to basic installation or configuration. Consult this product's readme file and the Getting Started with JClass booklet, for help with these types of questions.

KL Group's Gold Support with Subscription plan is included with your purchase and entitles registered users with a valid JClass software license to the following support:

For additional information and pricing for JClass Gold Support , please visit our online store or your JClass reseller. You can also email sales@klgroup.com.

To Contact JClass Support

Any request for support must include your JClass product serial number. Supplying the following information will help us serve you better:

 

SupportWatch:

https://supportwatch.klgroup.com

Telephone:

800-663-4723 (toll free in North America) or 416-594-1026

Available Monday - Friday, 9:00 a.m. to 8:00 p.m. Eastern time

Fax:

416-594-1919

JClass Support Email:

jclass_support@klgroup.com

European Customers Contact Information:

In Europe contact:

Email: eurosupport@klgroup.com

Phone: +31 (0)20 510 67 00

Fax: +31 (0)20 470 03 26


Other Support Resources
JClass Technical Support (links to Knowledge Base):

http://www.klgroup.com/cs/tech/jclass/

JClass FAQs:

http://www.klgroup.com/cs/tech/jclass/faq_index.html

Using JClass in IDEs:

http://www.klgroup.com/jclass/using/index.html


Product Feedback and Announcements

We are interested in hearing about how you use JClass Field, any problems you encounter, or any additional features you would find helpful. The majority of enhancements to JClass products are the result of customer requests.

Please send your comments to:

KL Group Inc.
260 King Street East
Toronto, Ontario, M5A 4L5 Canada

Phone: (416) 594-1026
Fax: (416) 594-1919
Email: dev_jclass@klgroup.com
Internet: news://news.klgroup.com/klg.forum.jclass

While we appreciate your feedback, we cannot guarantee a response. Please do not use the dev_jclass email address for technical support questions.

Occasionally, we send JClass-related product announcements to our customers using an email list. To add yourself to this mailing list, send email with the word "subscribe" in the body of the message to klg-javanews-request@klgroup.com. Visit the KL Group web site at http://www.klgroup.com for more details.


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