Building Java Applications for the iSeries Server with VisualAge for Java 3.5

Chapter 4. IBM Toolbox for Java 127

4.2 Enhancements

The IBM Toolbox for Java originally became available as part of OS/400 V4R2. A number of

enhancements have been made to it. These enhancements are called

modifications. This

section covers the key features of the modifications.

4.2.1 V4R3 enhancements

With OS/400 V4R3, the IBM Toolbox for Java Modification 1 (5763-JC1 V3R2M1) offers two

significant enhancements. Several new access classes are provided, as are the graphical

user interface (GUI) classes. New classes are provided to access the following iSeries

resources:

򐂰 Digital certificates

Digital certificates are digitally signed statements used for secured transactions over the

Internet. Digital certificates can be used on iSeries servers running on Version 4 Release

3 and later. To make a secure connection using the secure sockets layer (SSL), a digital

certificate is required.

򐂰 Jobs

The IBM Toolbox for Java jobs classes allow a Java program to retrieve the attributes of a

job and list the active jobs. The job classes are:

–

Job: Represents an iSeries job object

–

JobList: Represents a list of iSeries jobs

–

JobLog: Represents the job log of an iSeries server

򐂰 Message queues

The MessageQueue class allows a Java program to interact with an iSeries message

queue. It acts as a container for the QueuedMessage class. The getMessages() method,

in particular, returns a list of QueuedMessage objects. The MessageQueue class can

perform these tasks:

– Set message queue attributes

– Get information about a message queue

– Receive messages from a message queue

– Send messages to a message queue

– Reply to messages

򐂰 Queued messages

The QueuedMessage class extends the AS400Message class. The QueuedMessage

class accesses information about a message on an iSeries message queue. With this

class, a Java program can retrieve:

– Information about where a message originated, such as the program, job name, job

number, and user

– The message queue

– The message key

– The message reply status

򐂰 Users and groups

The user and group classes allow a Java program to get lists of users and groups on the

iSeries server and information about each user. You use a UserList object to get a list of

users and groups on the system. The only property of the UserList object that must be set

is the AS400 object that represents the iSeries server from which the list of users is to be

retrieved.