com.google.cloud.dataflow.sdk.values.PValue Maven / Gradle / Ivy

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/*
 * Copyright (C) 2015 Google Inc.
 *
 * Licensed 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 com.google.cloud.dataflow.sdk.values;

import com.google.cloud.dataflow.sdk.transforms.AppliedPTransform;

/**
 * A {@code PValue} is the interface to values that can be
 * input and output from {@link com.google.cloud.dataflow.sdk.transforms.PTransform}s.
 */
public interface PValue extends POutput, PInput {

  /**
   * Returns the name of this {@code PValue}.
   */
  public String getName();

  /**
   * Returns the {@code AppliedPTransform} that this {@code POutputValueBase}
   * is an output of.
   *
   *  For internal use only.
   */
  public AppliedPTransform getProducingTransformInternal();
}