| /* |
| * 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.nifi.serialization; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.nifi.serialization.record.RecordSet; |
| |
| /** |
| * <p> |
| * A ResultSetWriter is responsible for writing a ResultSet to a given {@link OutputStream}. |
| * </p> |
| * |
| * <p> |
| * PLEASE NOTE: This interface is still considered 'unstable' and may change in a non-backward-compatible |
| * manner between minor or incremental releases of NiFi. |
| * </p> |
| */ |
| public interface RecordSetWriter extends RecordWriter { |
| /** |
| * Writes the given result set to the given output stream |
| * |
| * @param recordSet the record set to serialize |
| * |
| * @return the results of writing the data |
| * @throws IOException if unable to write to the given OutputStream |
| */ |
| WriteResult write(RecordSet recordSet) throws IOException; |
| |
| /** |
| * Begins a new RecordSet |
| * |
| * @throws IOException if unable to write to the underlying OutputStream |
| * @throws IllegalStateException if a RecordSet has already been started |
| */ |
| void beginRecordSet() throws IOException; |
| |
| /** |
| * Finishes the currently active RecordSet and returns a WriteResult that includes information about what was written |
| * |
| * @return the results of writing the data |
| * @throws IOException if unable to write to the given OutputStream |
| * @throws IllegalStateException if a RecordSet has not been started via {@link #beginRecordSet()} |
| */ |
| WriteResult finishRecordSet() throws IOException; |
| } |