https://github.com/datastax/java-driver/java-driver-core: A driver for Apache Cassandra(R) 2.1+ that works exclusively with the Cassandra Query Language version 3 (CQL3) and Cassandra's native protocol versions 3 and above.
  • Various (DataStax) 
/*
 * 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;

import com.datastax.oss.driver.api.core.ConsistencyLevel;
import com.datastax.oss.driver.internal.core.context.InternalDriverContext;


Extension point to plug custom consistency levels.

This is overridable through InternalDriverContext. 
/**
 * Extension point to plug custom consistency levels.
 *
 * <p>This is overridable through {@link InternalDriverContext}.
 */
public interface ConsistencyLevelRegistry {

  ConsistencyLevel codeToLevel(int code);

  int nameToCode(String name);

  ConsistencyLevel nameToLevel(String name);

  
Returns:all the values known to this driver instance.
/** @return all the values known to this driver instance. */
  Iterable<ConsistencyLevel> getValues();
}