Paradigms of communication

Description

Depending on the type of communication (Synchronous / Asynchronous), on the role played by GreenVulcano^® ESB (active / passive) and on the response management, it is possible to have from a minimum of one to a maximum of four operations constituting a single interaction client - server.

GreenVulcano^® ESB Configuration

GreenVulcano^® ESB is configured for managing four paradigms of communication:

• Synchronous - Synchronous
• Synchronous - Asynchronous
• Asynchronous - Synchronous
• Asynchronous - Asynchronous

Synchronous-Synchronous

Synchronous-Synchronous

The Synchronous-Synchronous paradigm takes place following the Client -> GreenVulcano^® ESB -> Server direction.

The following table shows its properties:

	Client	GVESB Workflow Number	Server
Communication	Synchronous	1	Synchronous

Synchronous-Asynchronous

Synchronous-Asynchronous

The Synchronous-Asynchronous paradigm takes place following the Client -> GreenVulcano^® ESB -> Server direction.

The following table shows its properties:

	Client	GVESB Workflow Number	Server
Communication	Synchronous	1	Asynchronous

The decoupling of communication can happen in two ways:

1. 

   plugin->server->jms
   GreenVulcano^® ESB, using a plugin, invokes the serve and wait its response into a queue jms, bmq, etc.
2. 

   jms->server->jms
   GreenVulcano^® ESB enqueues into a jms queue shared with server and wait for the response into another jms queue.

Asynchronous-Synchronous

Asynchronous-Synchronous

The Asynchronous-Synchronous paradigm takes place following the Client -> GreenVulcano^® ESB -> Server direction.

The following table shows its properties:

	Client	GVESB Workflow Number	Server
Communication	Asynchronous	1	Synchronous