| /* |
| * 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.ignite.table; |
| |
| import java.io.Serializable; |
| |
| /** |
| * Invoke processor interface provides API to run code on server side against a table record |
| * associated with provided key. |
| * <p> |
| * For non-binary projections row will be deserialized to user object(s) before the invocation |
| * and serialized back if a new value was set via {@linkplain InvocationContext#value(Object)}. |
| * <p> |
| * Invoke operation arguments along with invoke operation result classes MUST be serializable |
| * as they can be transferred over network. |
| * |
| * @param <K> Key object type. |
| * @param <V> Value type. |
| * @param <R> Processor result type. |
| * @apiNote Distributed deployment MUST be used for processor code load instead of load form the classpath |
| * to guarantee same code revision in the grid. |
| */ |
| public interface InvokeProcessor<K, V, R extends Serializable> extends Serializable { |
| /** |
| * Processes table record and return the result. |
| * |
| * @param ctx Invocation context. |
| * @return Invoke processor result. |
| * @throws InvokeProcessorException If failed during data processing. |
| */ |
| R process(InvocationContext<K, V> ctx) throws InvokeProcessorException; |
| } |