Github user ctubbsii commented on a diff in the pull request: https://github.com/apache/incubator-fluo/pull/817#discussion_r107029175 --- Diff: modules/api/src/main/java/org/apache/fluo/api/observer/StringObserver.java --- @@ -0,0 +1,34 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more contributor license + * agreements. See the NOTICE file distributed with this work for additional information regarding + * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the License. You may obtain a + * copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the License + * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express + * or implied. See the License for the specific language governing permissions and limitations under + * the License. + */ + +package org.apache.fluo.api.observer; + +import org.apache.fluo.api.client.TransactionBase; +import org.apache.fluo.api.data.Bytes; +import org.apache.fluo.api.data.Column; + +/** + * @since 1.1.0 + */ +@FunctionalInterface +public interface StringObserver extends Observer { + + @Override + default void process(TransactionBase tx, Bytes row, Column col) throws Exception { + process(tx, row.toString(), col); --- End diff -- Yeah, the requiresNonNull wouldn't change the error. It's still going to be an NPE, but it's an opportunity to provide a better error message (if you think it needs it... I don't know for sure that it does) for an API method.
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