Transform Shared Library

What is TransformSL?

TransformSL is a framework to simplify the development of transformation-based JBI service engines. The default transformation engine in TransformSL is capable of executing transformation processes, including the invocation of service endpoints. The framework includes the following features:

• Runtime execution
  • Supports sequential processing of transformation process activities, including:
    • Transform - applies a transformation to input and assigns the result to output
    • Invoke - invokes service endpoints in the JBI environment
• Extensible engine units
  • Processing custom transform activities is possible without losing basic engine functionality
• Extensible parsing
  • Custom activities can be added by augmenting standard transformation process parsing
• Numerous component and systemic quality features
  • TransformSL is an extension of, and inherits all the features of, Component Toolkit.
• Extension functions
  • invoke()
    • Allows the invocation of service endpoints from within an XSL stylesheet.
  • getNMProperty() + setNMProperty()
    • Gives a stylesheet access to NormalizedMessage properties during transformation.
• Installed as a JBI Shared Library
  • Basic engine functionality is available to all JBI components
  • NOTE: TransformSL is not currently used as a Shared Library, due to classloading constraints in JBI (specifically, shared libraries cannot depend on each other); components based on TransformSL should explicitly package the transform-engine.jar in the component's installer.

Who needs TransformSL?

Anyone developing a transformation process engine. Currently, only XsltSE is implemented using TransformSL. The goal was to implement the functionality surrounding transformation processes in such a way that the transform activity could be using XSLT, XQuery, or some other transformation processor transparently.

TransformSL Links

For a summary of TransformSL wiki pages, please see the TransformSL Links wiki.

This page (revision-6) was last changed on 17-Oct-08 09:32 AM, -0700 by KevanSimpson.
This page was created on 16-Jul-07 16:40 PM, -0700 by KevanSimpson.

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