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Oracle GlassFish Server Message Queue 4.5 Developer's Guide for Java Clients
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Document Information


1.  Overview

2.  Using the Java API

3.  Message Queue Clients: Design and Features

Client Design Considerations

Developing Portable Clients

Choosing Messaging Domains

Connections and Sessions

Producers and Consumers

Assigning Client Identifiers

Message Order and Priority

Using Selectors Efficiently

Balancing Reliability and Performance

Managing Client Threads

JMS Threading Restrictions

Thread Allocation for Connections

Managing Memory and Resources

Managing Memory

Managing Message Size

Message Compression

Advantages and Limitations of Compression

Compression Examples

Managing the Dead Message Queue

Managing Physical Destination Limits

Programming Issues for Message Consumers

Using the Client Runtime Ping Feature

Preventing Message Loss for Synchronous Consumers

Synchronous Consumption in Distributed Applications

Factors Affecting Performance

Delivery Mode (Persistent/Nonpersistent)

Use of Transactions

Acknowledgment Mode

Durable vs. Nondurable Subscriptions

Use of Selectors (Message Filtering)

Message Size

Message Body Type

Connection Event Notification

Connection Events

Creating an Event Listener

Event Listener Examples

Consumer Event Notification

Consumer Events

Creating a Consumer Event Listener

Consumer Event Listener Examples

Client Connection Failover (Auto-Reconnect)

Enabling Auto-Reconnect

Single-Broker Auto-Reconnect

Parallel Broker Auto-Reconnect

Clustered-Broker Auto-Reconnect

Auto-Reconnect Behaviors

Auto-Reconnect Limitations

Handling Exceptions When Failover Occurs

Handling Exceptions in a Transacted Session

Transacted Session: Failover Producer Example

Transacted Session: Failover Consumer Example

Handling Exceptions in a Non-Transacted Session

Failover Producer Example

Failover Consumer Example

Custom Client Acknowledgment

Using Client Acknowledge Mode

Using No Acknowledge Mode

Schema Validation of XML Payload Messages

Communicating with C Clients

Client Runtime Logging

Logging Name Spaces, Levels, and Activities

Using the JRE Logging Configuration File

Using a Logging Configuration File for a Specific Application

Setting the Logging Configuration Programmatically

4.  Using the Metrics Monitoring API

5.  Working with SOAP Messages

6.  Embedding a Message Queue Broker in a Java Client

A.  Warning Messages and Client Error Codes


Chapter 3

Message Queue Clients: Design and Features

This chapter addresses architectural and configuration issues that depend upon Message Queue’s implementation of the Java Message Specification. It covers the following topics: