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EL Versioned Framework Selector

Overview

The framework requirements for design-time EL differ significantly between Unified EL and previous versions. Both syntantic and semantic changes have been made to the specification. Wholesale changes have also been made to the mechanism for symbol resolution and new types of symbols, like EL variables, have been added. Therefore the Unified EL exists as a separate framework from prior versions, sharing design and code only where backward compatibility needs to be supported.

To support two separate versions of the EL framework co-existing in the tooling at one time a mechanism is necessary to allow users of the framework to transparently select the correct version based on the version of the application being edited.

EL Version Selector

ELVersionSupport.png

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