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.calcite.jdbc;
  
  import org.apache.calcite.adapter.java.JavaTypeFactory;
  import org.apache.calcite.avatica.AvaticaConnection;
  import org.apache.calcite.avatica.AvaticaFactory;
  import org.apache.calcite.avatica.UnregisteredDriver;
  
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  import java.util.Properties;
  
  /**
   * Extension of {@link org.apache.calcite.avatica.AvaticaFactory}
   * for Calcite.
   */
  public abstract class CalciteFactory implements AvaticaFactory {
    protected final int major;
    protected final int minor;
  
    /** Creates a JDBC factory with given major/minor version number. */
    protected CalciteFactory(int major, int minor) {
      this.major = major;
      this.minor = minor;
    }
  
    @Override public int getJdbcMajorVersion() {
      return major;
    }
  
    @Override public int getJdbcMinorVersion() {
      return minor;
    }
  
    @Override public final AvaticaConnection newConnection(
        UnregisteredDriver driver,
        AvaticaFactory factory,
        String url,
        Properties info) {
      return newConnection(driver, factory, url, info, null, null);
    }
  
    /** Creates a connection with a root schema. */
    public abstract AvaticaConnection newConnection(UnregisteredDriver driver,
        AvaticaFactory factory, String url, Properties info,
        @Nullable CalciteSchema rootSchema, @Nullable JavaTypeFactory typeFactory);
  }
  