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.sql.meta.provider.datacatalog;
  
  import com.google.cloud.datacatalog.v1beta1.Entry;
  import java.util.Optional;
  import org.apache.beam.sdk.extensions.sql.meta.Table;
  
  /**
   * A {@link TableFactory} <i>may</i> be able to interpret a given Data Catalog {@link Entry} into
   * Beam SQL {@link Table}.
   */
  interface TableFactory {
  
    /**
     * If this {@link TableFactory} instance can interpret the given {@link Entry}, then a Beam SQL
     * {@link Table} is constructed, else returns {@link Optional#empty}.
     *
     * <p>The {@link Table} is returned as a builder for further customization by the caller.
     */
    Optional<Table.Builder> tableBuilder(Entry entry);
  }
  