Habari STOMP Client for OpenMQ

Version 9.3, tested with Eclipse OpenMQ 6.5.0 get_app

Connect with Eclipse OpenMQ

Habari STOMP Client for OpenMQ is a high-level, object-oriented STOMP client library for Delphi and Free Pascal which provides access to the Eclipse OpenMQ free open source message broker.

language

With this library, developers can build integrated solutions, connecting cross language clients and protocols, using the peer-to-peer or the publish-and-subscribe communication model.

favorite_border

It is easy to configure and provides a high-level API and programming model, based on connections, sessions, destinations, message producers, and message consumers.

filter_list

The library uses the STOMP Streaming Text Oriented Messaging Protocol for its communication with the message broker, which uses an interoperable wire format.

Broker-specific STOMP extensions

Habari STOMP Client libraries support broker-specific extensions of the STOMP specification. Most of them can be accessed with the same client side code across all broker versions.

timer

Message Expiration

By default, a message never expires. If a message will become obsolete after a certain period, however, you may want to set an expiration time for the message.

traffic

Message Priority

A client can specify a priority for each message it sends. Message priorities affect the order in which the messages are delivered to the consumers.

storage

Persistent Messages

Brokers support reliable messaging by allowing messages to be persisted so that they can be recovered if there is failure which kills the broker.

pause_circle_outline

Durable Subscriptions

Even if the client which created the durable subscription is not online, he can still get a copy of all the messages sent to the topic when he comes back online.

STOMP Extensions

✓ Message Expiration
✓ Message Priority
✓ Persistent Messages
✓ Durable Subscriptions
✓ Rich Message Conversion

import_export

Rich Message Conversion

Binary and text messages can be exchanged between STOMP and non-STOMP clients. (Object and map messages are exchanged as text messages)

sync

Temporary Queues

Temporary destinations are typically used to receive response messages in a request/response messaging exchange.

Not available for Artemis

filter_list

Message Selector

Message selectors allow a subscription to only receive a subset of the messages sent to a destination.

Not available for RabbitMQ

Resources version 9.3

Released 20 Juni 2025

book

Manual

Read the "Getting Started" user guide for Habari STOMP Client for OpenMQ

search

API

Browse the online API documentation for Habari STOMP Client for OpenMQ

list

Release Notes

Browse release notes (new features, enhancements, and bug fixes)

help_outline

FAQ

Frequently asked questions: use cases, licensing, and technical

alternate_email

Contact

Contact Habarisoft for support and sales inqueries

view_comfy

Feature Matrix

View the Habari STOMP Client feature matrix

Code Examples

"Hello, World!" - Send to message broker

code

Connects to a message broker instance with default port and credentials, and sends a text message. 

strict private
  Factory: IConnectionFactory
...
  Factory := TBTConnectionFactory.Create('stomp://example.com');
...

procedure TExampleClient.SendHelloWorld;
var
  Ctx: IMQContext;
  Destination: IDestination;
begin
  Ctx := Factory.CreateContext;
  try
    Destination := Ctx.CreateQueue('hello_world');
    Ctx.CreateProducer.Send(Destination, 'Hello, World!');
  finally
    Ctx.Close;
  end;
end;
Habari logo

"Hello, World!" - Receive from message broker

code

Connects to a message broker instance with default port and credentials, and receives a text message. 

strict private
  Factory: IConnectionFactory
...
  Factory := TBTConnectionFactory.Create('stomp://example.com');
...

procedure TExampleClient.ReceiveHelloWorld;
var
  Ctx: IMQContext;
  Destination: IDestination;
  Consumer: IMQConsumer;
  TextMessage: ITextMessage;
begin
  Ctx := Factory.CreateContext;
  try
    Destination := Ctx.CreateQueue('hello_world');
    Consumer := Ctx.CreateConsumer(Destination);
    TextMessage := Consumer.Receive(2500) as ITextMessage;
    if Assigned(TextMessage) then 
      ShowMessage(TextMessage.Text);
  finally
    Ctx.Close;
  end;
end;
Habari logo

Get Habari STOMP Client for OpenMQ

get_app

Try before you buy - get the demo applications of Habari STOMP Client for OpenMQ:

Download »

add_shopping_cart

Purchase or renew a Single Developer License of Habari STOMP Client for OpenMQ:

Buy License »

I agree to the License and the Terms and Conditions.

lock

Registered users may download the installer for Habari STOMP Client for OpenMQ version 9.3 here:

Download »

License information

update

Minor and major updates included for one year after purchase

cake

Basic support included for one year after purchase

language

Royalty-free usage in your applications

event_seat

Licensed per developer seat

code

Full library source code included

download_done

Download link within 48 hours

About the Eclipse OpenMQ free open source message broker

Eclipse Open Message Queue (Eclipse OpenMQ) is a complete message-oriented middleware platform, offering high quality, enterprise-ready messaging.

OpenMQ is included in Eclipse GlassFish.

https://github.com/eclipse-ee4j/openmq