sdks/java/core/src/main/java/org/apache/beam/sdk/util/DoFnWithExecutionInformation.java

/*
 * 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
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package org.apache.beam.sdk.util;

import com.google.auto.value.AutoValue;
import java.io.Serializable;
import org.apache.beam.sdk.transforms.DoFn;
import org.apache.beam.sdk.transforms.DoFnSchemaInformation;
import org.apache.beam.sdk.values.TupleTag;

/** The data that the Java SDK harness needs to execute a DoFn. */
@AutoValue
public abstract class DoFnWithExecutionInformation implements Serializable {
  public static DoFnWithExecutionInformation of(
      DoFn<?, ?> fn, TupleTag<?> tag, DoFnSchemaInformation doFnSchemaInformation) {
    return new AutoValue_DoFnWithExecutionInformation(fn, tag, doFnSchemaInformation);
  }

  public abstract DoFn<?, ?> getDoFn();

  public abstract TupleTag<?> getMainOutputTag();

  public abstract DoFnSchemaInformation getSchemaInformation();
}