A Complete JMS 2.0 Tutorial

JMS stands for Java Message Service which is a standard for accessing messaging middleware servers in Java. Messaging is a process of exchanging Business data across various applications or services. This is A Complete JMS 2.0 Tutorial with great code examples. Complete code example is available on GitHub, please download and run the examples. The tutorial uses Glassfish opensource Server as an example of a JMS Provider.

You can use ActiveMQ or ActiveMQ Artemes as a JMS Provider, the JMS API remains same only the maven dependency for using the respective JMS providers will change. Below are the topics that are covered in the Tutorial.

Introduction to JMS – Java Message Service

• What is messaging?
  • Advantages of using a Messaging middleware
• What is JMS (Java Message Service)?
  • Limitations of JMS standard
• Messaging models in JMS
• Components of a JMS application
• Security features in JMS

Install and Setup Glassfish for JMS

• Prerequisites
• Steps for Glassfish installation and setup
  • Step-1, Download the Glassfish and Unzip
  • Step-2, Start the Server
  • Step-3, Open the Admin Console
  • Step-4, Create JMS destination resources
• Steps to configure your IDE
  • Step-1, Create a maven project
  • Step-2, Add the JMS dependencies in pom.xml
  • Step-3, Create the jndi.properties file

Send and Receive a message in JMS

• JMS APIs Version
  • Common interfaces
• Send and receive a message using JMS
  • Developing a client in JMS 1.1
  • Developing a client in JMS 2.0
• Thread safety of JMS API

JMS Message Model

• 1. Message Header fields
  • 1.1. JMSDestination
  • 1.2. JMSDeliveryMode
  • 1.3. JMSMessageID
  • 1.4. JMSTimestamp
  • 1.5. JMSRedelivered
  • 1.6. JMSExpiration – Set message a time to live
  • 1.7. JMSPriority header
  • 1.8. JMSDeliveryTime – Message delivery delay
  • 1.9. JMSCorrelationID
  • 1.10. JMSType
  • 1.11. JMSReplyTo
• 2. Message Properties
  • 2.1. Custom Properties
  • 2.2. JMS defined Properties
  • 2.3. JMS Provider-specific properties
• 3. JMS Message Body – 5 message types in JMS
  • 1. StreamMessage
  • 2. MapMessage
  • 3. TextMessage
  • 4. ObjectMessage
  • 5. BytesMessage

JMS Prioritize Messages

• JMS Priority example
• JMS Message default priority

JMS Point-to-point messaging in Action

• Use a Queue for PTP messaging
  • Asynchronous Message Listeners in JMS
• TemporaryQueue
• QueueBrowser in PTP messaging
• Reliability of Queue
• Message Request Reply in JMS
  • 1. Message request-reply using TemporaryQueue
  • 2. Use another Queue as a reply Queue
  • Use JMSCorrelationID in JMS Point-to-point Request Response Messaging

JMS pub-sub messaging model

• JMS pub/sub messaging example
• Problem with a normal message Subscriber
• DurableConsumer example in JMS pub-sub
• SharedConsumer to load balance
• Async message Subscription

JMS Message Selectors in Action to Filter Messages

• Why Message Selectors?
• Message Filter by Properties
• Message Filter by Header
• Rules for Selector
  • 1. Rules for Literals
  • 2. Rules for Identifiers
  • 3. Rules for Operators

Guaranteed Delivery using JMS Message Acknowledgement

• Transaction commit
• Transaction rollback

Reference

1. Apache ActiveMQ Artemis User Manual
2. Administrating and Troubleshooting Glassfish JMS
3. What’s new in JMS 2.0

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