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.metadata.entities;
  
  import java.util.Objects;
  
  import org.apache.asterix.common.metadata.DataverseName;
  import org.apache.asterix.metadata.MetadataCache;
  import org.apache.asterix.metadata.api.IMetadataEntity;
  import org.apache.asterix.metadata.utils.Creator;
  
  public class Synonym implements IMetadataEntity<Synonym> {
  
      private static final long serialVersionUID = 2L;
  
      private final String databaseName;
  
      private final DataverseName dataverseName;
  
      private final String synonymName;
  
      private final String objectDatabaseName;
  
      private final DataverseName objectDataverseName;
  
      private final String objectName;
      private final Creator creator;
  
      public Synonym(String databaseName, DataverseName dataverseName, String synonymName, String objectDatabaseName,
              DataverseName objectDataverseName, String objectName, Creator creator) {
          this.databaseName = Objects.requireNonNull(databaseName);
          this.dataverseName = Objects.requireNonNull(dataverseName);
          this.synonymName = Objects.requireNonNull(synonymName);
          this.objectDatabaseName = Objects.requireNonNull(objectDatabaseName);
          this.objectDataverseName = Objects.requireNonNull(objectDataverseName);
          this.objectName = Objects.requireNonNull(objectName);
          this.creator = creator;
      }
  
      public String getDatabaseName() {
          return databaseName;
      }
  
      public DataverseName getDataverseName() {
          return dataverseName;
      }
  
      public String getSynonymName() {
          return synonymName;
      }
  
      public String getObjectDatabaseName() {
          return objectDatabaseName;
      }
  
      public DataverseName getObjectDataverseName() {
          return objectDataverseName;
      }
  
      public String getObjectName() {
          return objectName;
      }
  
      public Creator getCreator() {
          return creator;
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o)
              return true;
          if (o == null || getClass() != o.getClass())
              return false;
          Synonym synonym = (Synonym) o;
          return Objects.equals(databaseName, synonym.databaseName) && dataverseName.equals(synonym.dataverseName)
                  && synonymName.equals(synonym.synonymName)
                  && Objects.equals(objectDatabaseName, synonym.objectDatabaseName)
                  && objectDataverseName.equals(synonym.objectDataverseName) && objectName.equals(synonym.objectName);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(databaseName, dataverseName, synonymName, objectDatabaseName, objectDataverseName,
                  objectName);
      }
  
      @Override
      public Synonym addToCache(MetadataCache cache) {
          return cache.addSynonymIfNotExists(this);
      }
  
      @Override
      public Synonym dropFromCache(MetadataCache cache) {
          return cache.dropSynonym(this);
      }
  }
  