/* * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor * license agreements. See the NOTICE file distributed with this work for * additional information regarding copyright ownership. Crate 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. * * However, if you have executed another commercial license agreement * with Crate these terms will supersede the license and you may use the * software solely pursuant to the terms of the relevant commercial agreement. */ package io.crate.operation.collect; import io.crate.data.BatchConsumer; public interface CrateCollector { interface Builder { /** * Create a CrateCollector * * @param batchConsumer consumer which will receive a BatchIterator to consume data after * {@link #doCollect()} has been called. * (May be async) */ CrateCollector build(BatchConsumer batchConsumer); default BatchConsumer applyProjections(BatchConsumer consumer) { return consumer; } } void doCollect(); void kill(Throwable throwable); }