content: /*
   * 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.sdk.extensions.euphoria.core.translate;
  
  import org.apache.beam.sdk.extensions.euphoria.core.client.operator.base.Operator;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.PCollectionList;
  
  /**
   * A functor to translate an operator into a beam execution.
   *
   * @param <InputT> the type of input elements
   * @param <OutputT> the type of output elements
   * @param <OperatorT> the type of the euphoria operator
   * @deprecated Use Java SDK directly, Euphoria is scheduled for removal in a future release.
   */
  @SuppressWarnings({
    "rawtypes" // TODO(https://github.com/apache/beam/issues/20447)
  })
  @Deprecated
  public interface OperatorTranslator<InputT, OutputT, OperatorT extends Operator> {
  
    /**
     * Translates the given a operator it into a concrete beam transformation.
     *
     * @param operator the operator to translate
     * @param inputs list of inputs
     * @return a beam transformation
     */
    PCollection<OutputT> translate(OperatorT operator, PCollectionList<InputT> inputs);
  
    /**
     * Returns true when implementing {@link OperatorTranslator} is able to translate given instance
     * of an operator, false otherwise.
     *
     * <p>This method allow us to have more {@link OperatorTranslator} implementations for one {@link
     * Operator} in case when some specialized translators are needed.
     *
     * @param operator operator to check
     * @return true if operator can be translated
     */
    default boolean canTranslate(OperatorT operator) {
      return true;
    }
  }
  