Asynchronous Web Services With Oracle SOA Suite by Pavel Samolysov

The top web services based approaches for asynchronous interactions among enterprise applications are described in the article. The common used during Oracle SOA Suite leveraging method that based on a callback service and the WS-Addressing specification is shown. A number of examples of asynchronous web service creation and client generation using the JDeveloper IDE are considered.

• Introduction
• WS-Addressing
• Creating an asynchronous web service with Oracle SOA Suite
• Generating a consumer to an asynchronous web service using Oracle JDeveloper
• Adding a new web service operation. Mediator
• Conclusions

Introduction

Time to time, when we as architects integrate some enterprise applications, asynchronous communication has be to taken into account. Asynchronous communication means a service consumer isn’t blocked for an response from a service provider, it just gets an acknowledge and continue doing it’s work. There are two popular approaches to implement asynchronous communication among web services:

• polling refers to actively sampling the status of a being processed request by a service consumer as a synchronous activity.
• callback refers to a method provided by a service consumer. When the service provider have accomplished the operation processing, it calls the consumer. In this approach, the service consumer simultaneously works like a callback methods service provider as well. Read the complete article here.

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