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 com.datastax.oss.driver.internal.core.metadata.schema.queries;
  
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.internal.core.channel.DriverChannel;
  import java.util.Optional;
  import net.jcip.annotations.ThreadSafe;
  
  @ThreadSafe
  public class Cassandra22SchemaQueries extends CassandraSchemaQueries {
    public Cassandra22SchemaQueries(
        DriverChannel channel, Node node, DriverExecutionProfile config, String logPrefix) {
      super(channel, node, config, logPrefix);
    }
  
    @Override
    protected String selectKeyspacesQuery() {
      return "SELECT * FROM system.schema_keyspaces";
    }
  
    @Override
    protected String selectTablesQuery() {
      return "SELECT * FROM system.schema_columnfamilies";
    }
  
    @Override
    protected Optional<String> selectViewsQuery() {
      return Optional.empty();
    }
  
    @Override
    protected Optional<String> selectIndexesQuery() {
      return Optional.empty();
    }
  
    @Override
    protected String selectColumnsQuery() {
      return "SELECT * FROM system.schema_columns";
    }
  
    @Override
    protected String selectTypesQuery() {
      return "SELECT * FROM system.schema_usertypes";
    }
  
    @Override
    protected Optional<String> selectFunctionsQuery() {
      return Optional.of("SELECT * FROM system.schema_functions");
    }
  
    @Override
    protected Optional<String> selectAggregatesQuery() {
      return Optional.of("SELECT * FROM system.schema_aggregates");
    }
  
    @Override
    protected Optional<String> selectVirtualKeyspacesQuery() {
      return Optional.empty();
    }
  
    @Override
    protected Optional<String> selectVirtualTablesQuery() {
      return Optional.empty();
    }
  
    @Override
    protected Optional<String> selectVirtualColumnsQuery() {
      return Optional.empty();
    }
  
    @Override
    protected Optional<String> selectEdgesQuery() {
      return Optional.empty();
    }
  
    @Override
    protected Optional<String> selectVerticiesQuery() {
      return Optional.empty();
    }
  }
  