public static FieldValue evaluate(
Apply apply, List<FieldValue> values, EvaluationContext context) {
String name = apply.getFunction();
Function function = getFunction(name);
if (function == null) {
DefineFunction defineFunction = context.resolveFunction(name);
if (defineFunction == null) {
throw new UnsupportedFeatureException(apply);
}
return evaluate(defineFunction, values, context);
}
return function.evaluate(values);
}
private FunctionEntry add(String name, Function function) {
final FunctionEntryImpl entry = new FunctionEntryImpl(this, name, function);
functionMap.put(name, entry);
if (function.getParameters().isEmpty()) {
nullaryFunctionMapInsensitive.put(name, entry);
}
return entry;
}