public void registerExpressionEvaluator(@Nonnull String expression, @Nonnull Function evaluator) {
        functionsByName.put(expression, evaluator);
    }
public void registerExpressionEvaluator(@Nonnull String expression, @Nonnull Function evaluator) {
        functionsByName.put(expression, evaluator);
    }
public void registerExpressionEvaluator ( @ Nonnull String expression , @ Nonnull Function evaluator ) { functionsByName . put ( expression , evaluator ) ; }
Registers an expression evaluator with a static value.
Registers an expression evaluator with a static value .