| /** |
| * 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. |
| */ |
| |
| #ifndef NIFI_MINIFI_CPP_EXPRESSION_H |
| #define NIFI_MINIFI_CPP_EXPRESSION_H |
| |
| #include <core/FlowFile.h> |
| #include <Value.h> |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| namespace expression { |
| |
| typedef struct { |
| std::weak_ptr<core::FlowFile> flow_file; |
| } Parameters; |
| |
| /** |
| * A minimal definition of an Expression with a NoOp implementation. |
| */ |
| class Expression { |
| public: |
| |
| explicit Expression(std::string, std::function<std::string(const Parameters &)>); |
| }; |
| |
| } /* namespace expression */ |
| } /* namespace minifi */ |
| } /* namespace nifi */ |
| } /* namespace apache */ |
| } /* namespace org */ |
| |
| #endif //NIFI_MINIFI_CPP_EXPRESSION_H |