com.datastax.oss.driver.internal.core.metadata.schema.queries.Dse68SchemaQueries Maven / Gradle / Ivy
The newest version!
/*
* 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;
/**
* The system table queries to refresh the schema in DSE 6.8.
*
* There are two additional tables for per-table graph metadata.
*/
public class Dse68SchemaQueries extends Cassandra4SchemaQueries {
public Dse68SchemaQueries(
DriverChannel channel, Node node, DriverExecutionProfile config, String logPrefix) {
super(channel, node, config, logPrefix);
}
@Override
protected Optional selectEdgesQuery() {
return Optional.of("SELECT * FROM system_schema.edges");
}
@Override
protected Optional selectVerticiesQuery() {
return Optional.of("SELECT * FROM system_schema.vertices");
}
}