FEEL Engine Legacy Behavior
The FEEL engine supports a legacy mode that restores an older evaluation behavior for FEEL expressions. This is primarily useful when migrating DMN models that rely on the legacy FEEL semantics.
To enable the legacy mode, set the dmnFeelEnableLegacyBehavior flag in the
process engine configuration.
To enable this behavior in a standalone DMN Engine setup, refer to the DefaultDmnEngineConfiguration
enableFeelLegacyBehavior and [setEnableFeelLegacyBehavior][feel flag setter]
methods.
Heads Up!
By using the legacy FEEL Engine, the Operaton DMN Engine only supports FEEL for
Input Entries of a decision table – this corresponds to FEEL
simple unary tests.