/*
* Copyright DataStax, Inc.
*
* Licensed 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.Metadata;
import com.datastax.oss.driver.internal.core.channel.DriverChannel;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class Cassandra4SchemaQueries extends Cassandra3SchemaQueries {
public Cassandra4SchemaQueries(
DriverChannel channel,
CompletableFuture<Metadata> refreshFuture,
DriverExecutionProfile config,
String logPrefix) {
super(channel, refreshFuture, config, logPrefix);
}
@Override
protected Optional<String> selectVirtualKeyspacesQuery() {
return Optional.of("SELECT * FROM system_virtual_schema.keyspaces");
}
@Override
protected Optional<String> selectVirtualTablesQuery() {
return Optional.of("SELECT * FROM system_virtual_schema.tables");
}
@Override
protected Optional<String> selectVirtualColumnsQuery() {
return Optional.of("SELECT * FROM system_virtual_schema.columns");
}
}