public void FunctionKeyValueMapper() { Func <string, int, int> mapper = (k, v) => k.Length; var wrap = new WrappedKeyValueMapper <string, int, int>(mapper); Assert.AreEqual(4, wrap.Apply("test", 12)); }
private ProcessorGraphNode <K, V> InternalSelectKey <KR>(IKeyValueMapper <K, V, KR> mapper, string named = null) { var name = new Named(named).OrElseGenerateWithPrefix(this.builder, KEY_SELECT_NAME); WrappedKeyValueMapper <K, V, KeyValuePair <KR, V> > internalMapper = new WrappedKeyValueMapper <K, V, KeyValuePair <KR, V> >( (key, value) => new KeyValuePair <KR, V>(mapper.Apply(key, value), value)); KStreamMap <K, V, KR, V> kStreamMap = new KStreamMap <K, V, KR, V>(internalMapper); ProcessorParameters <K, V> processorParameters = new ProcessorParameters <K, V>(kStreamMap, name); return(new ProcessorGraphNode <K, V>(name, processorParameters)); }