| /* |
| * 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.beam.runners.direct; |
| |
| import org.apache.beam.sdk.util.WindowedValue; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.PCollectionView; |
| |
| /** |
| * A {@link PCollectionViewWriter} is responsible for writing contents of a {@link PCollection} to a |
| * storage mechanism that can be read from while constructing a {@link PCollectionView}. |
| * |
| * @param <ElemT> the type of elements the input {@link PCollection} contains. |
| * @param <ViewT> the type of the PCollectionView this writer writes to. |
| */ |
| @FunctionalInterface |
| interface PCollectionViewWriter<ElemT, ViewT> { |
| void add(Iterable<WindowedValue<ElemT>> values); |
| } |