Saturday Jun 20, 2015

Creating Oracle Service Bus 12c Proxy Service to Decouple JCA Database Adapter Business Services

In an earlier blog I showed how to service enable a database on OSB 12c . The business service created as we saw is strongly coupled to the database. A change on the database (table name, data type or column name) would impact the interface created. This is something that we want to avoid when using the service in a larger context in Service –Oriented Architecture (SOA).

In this blog post, I will explain how to create a proxy service in OSB 12c that can act as an atomic service to decouple the database.

[Read More]

Wednesday Jun 17, 2015

Database CRUD Web Services Enablement with Oracle Service Bus 12c

Before the release of Oracle Fusion Middleware 12c, we could only use  a JCA Database adapter with Oracle Service Bus 11g by working with Eclipse (OEPE) for OSB development of services and Jdeveloper in parallel as the  adapter wizards were only available in JDeveloper Oracle SOA Suite 11g project.

The development of services to decouple a database in Oracle Service Bus 12cis less work due to the now existing new Overview Editor in Jdeveloper 12c for developing Service Bus services compared to the Composite Editor for Oracle SOA Suite 11g, it lets you drag and drop components on to the editor to create services. The editor provides direct creation and editing of JCA adapters, REST bindings, and Service Bus services.

[Read More]

Thursday Jul 28, 2011

How to mediate EJB invocation with the help of the Oracle Service Bus

In this video I will show how to:
  • Mediate EJB invocation using OSB
  • Expose pipeline as a SLSB (Stateless Session Bean)
  • Use Java Object or POJO (Plain Old Java Object) manipulation in the pipeline using Java Callout action

[Read More]

Wednesday Jul 27, 2011

How to control the transaction behaviour of the OSB Proxy Service

I'm continuing to publish the videos related to the OSB 11g new features. This time I tried to demonstrate the effect of enabling the  "Transaction Required" and "Same transaction for Response" check boxes  for a Proxy Service. During the demo you can also learn how to create JCA business services and JMS proxy/business services as well.[Read More]

Monday Jul 18, 2011

Partner Webcast - Oracle Service Bus (OSB) 11g new features for the integration developers

Oracle Service Bus (OSB) delivers low-cost, standards-based integration for mission critical SOA environments, where extreme performance and scalability are required.
In this webcast we will focus on how Oracle Service Bus (OSB) transforms complex and brittle architectures into agile integration networks by connecting, mediating, and managing interactions between services and applications. OSB 11g has a lot of new features that allows you to develop better integration solutions, during the webinar you can find an opportunity to explore some of them. [Read More]

Wednesday Jul 13, 2011

Calling custom java code from OSB: java callouts and custom XPath functions

When you are working with Oracle Service Bus can you use XQuery and XSLT to transform the data. But sometimes it's not enough and you'd like to utilize the full power of the custom java code inside your OSB proxy service message flows.  I will demonstrate how to invoke java code via java callout activity and by creating a custom XPath function.

[Read More]
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