scrappy notes taken during XML Europe 2002, needs fleshing out

• Everything expressable as an XML Transform
• Divide up tasks into reusable steps
• Recombine to build processing

Components

• Transformation Component Library
• Assembly Line
• XPipe Executive -- controlling nodes
• XPipe Processing Nodes -- future looking distributed processing; XGrid

Fundamental Operations

• Subtree deletion (DELETE)
• Element name mapping (MAP)
• Element re-ordering (REVERSE)
• Subtree move (MOVE)

Each operation is an XComponent. Sequence of XComponent is an XPipe. XML as pipeline component interface.

PropelX

• Propylons offering
• J2EE + JAXB/JAXM
• Pipe-ends: JMS, SOAP, RMI, File/HTTP
• Pipes can be interconnected
• Scheduled/Batch/On-Demand processing
• Monitoring
• Easy pipe creation and re-use
• Service oriented

Note can pipelines be managed graphically?

Have serial numbers of components, associated with descriptions, stored in a database.

XRegistry -- useful for component discovery to enable reuse.