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.asterix.external.dataset.adapter;
  
  import java.io.Serializable;
  import java.util.Objects;
  
  import org.apache.asterix.common.metadata.DataverseName;
  
  /**
   * A unique identifier for a data source adapter.
   */
  public class AdapterIdentifier implements Serializable {
  
      private static final long serialVersionUID = 3L;
  
      private final String databaseName;
      private final DataverseName dataverseName;
      private final String adapterName;
  
      public AdapterIdentifier(String databaseName, DataverseName dataverse, String name) {
          this.databaseName = Objects.requireNonNull(databaseName);
          this.dataverseName = dataverse;
          this.adapterName = name;
      }
  
      public String getDatabaseName() {
          return databaseName;
      }
  
      public DataverseName getDataverseName() {
          return dataverseName;
      }
  
      public String getName() {
          return adapterName;
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(databaseName, dataverseName + "@" + adapterName);
  
      }
  
      @Override
      public boolean equals(Object o) {
          if (o == null) {
              return false;
          }
          if (this == o) {
              return true;
          }
          if (!(o instanceof AdapterIdentifier)) {
              return false;
          }
          AdapterIdentifier a = (AdapterIdentifier) o;
          return Objects.equals(databaseName, a.databaseName) && dataverseName.equals(a.dataverseName)
                  && adapterName.equals(a.adapterName);
      }
  }
  