| /* |
| * 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 java.util.Objects; |
| import org.apache.beam.runners.local.StructuralKey; |
| import org.apache.beam.sdk.runners.AppliedPTransform; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.base.MoreObjects; |
| |
| /** |
| * A (Step, Key) pair. This is useful as a map key or cache key for things that are available |
| * per-step in a keyed manner (e.g. State). |
| */ |
| final class StepAndKey { |
| private final AppliedPTransform<?, ?, ?> step; |
| private final StructuralKey<?> key; |
| |
| /** Create a new {@link StepAndKey} with the provided step and key. */ |
| public static StepAndKey of(AppliedPTransform<?, ?, ?> step, StructuralKey<?> key) { |
| return new StepAndKey(step, key); |
| } |
| |
| private StepAndKey(AppliedPTransform<?, ?, ?> step, StructuralKey<?> key) { |
| this.step = step; |
| this.key = key; |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(StepAndKey.class) |
| .add("step", step.getFullName()) |
| .add("key", key.getKey()) |
| .toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(step, key); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other == this) { |
| return true; |
| } else if (!(other instanceof StepAndKey)) { |
| return false; |
| } else { |
| StepAndKey that = (StepAndKey) other; |
| return Objects.equals(this.step, that.step) && Objects.equals(this.key, that.key); |
| } |
| } |
| } |