Oracletube Screencasts

By sankar panneerselvam

Difference between Oracle Mediator and Enterprise Service Bus

What is the difference between Oracle Mediator and an Oracle Enterprise Service Bus. - Both Mediator and ESB can perform routing,filtering,data mapping their scopes vary. Mediator is used for intra-composition mediation, ie. to connect components within a composite application and the Service Bus on the other hand is used for inter composite mediation.

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By sankar panneerselvam

Deploying BPEL Process using EM Console 11g

This screencast is geared towards understanding how to deploy a BPEL process through JDeveloper.

Covered Topics - Deployment through JDeveloper 11g, Running the BPEL Flow from EM Console 11g, Setting the Audit levels from Production to Development. Basic Debugging explained.

Click on read more to watch the screencast.

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By sankar panneerselvam

Anatomy of a BPEL project

The series of BPEL free screencasts and training starts with this article. Very soon we will be uploading high quality screencasts on BPEL. The following are list of files that get created for a JDeveloper BPEL project.

composite.xml : The deployment descriptor of the process. This file holds the metadata information related the the BPEL process. The wire sources holds the connection information for the source and target uri.

EchoBPELProcess.bpel: The BPEL source for the process. You can switch between the Graphical representation and the source view in JDeveloper

EchoBPELProcess.wsdl: The WSDL(Client) interface for the process. The WSDL defines the input and output messages for this BPEL flow. The Client interface and operations suppported. The message types speciffied as partnerLinkType attributes in partnetLink elements in the BPEL Process.

Take a look at the EchoWorld BPEL process screencast. Click on readmore to watch the screencast.

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By sankar panneerselvam

XSLT Tricks of the trade for Oracle AIA Developers

Oracle AIA technology is getting hotter in the market and there is more Demand for AIA professionals. Given the fact that AIA is built purely on age old technologies - XML,XSL,XSLT,WSDL's etc, it's time for us to look back and understand these languages. This series will look at the basic XSL tricks required for AIA developers. I am not going to cover XSL in detail, there are lots of websites that do that already.

The power of xsl:apply-templates in recursive mode - This will be your tool for most of the customizations that are required in AIA PIP packs.

Syntax

<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>

Explanation: The above template code copies all attributes and all nodes: including element nodes, text nodes, comment nodes and processing instruction nodes. Since we have the power to copy everything it comes with a caution, for each attribute or element we can exercise control.