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.util.format.postgresql;
  
  /**
   * Calendar types that can be used in PostgreSQL datetime formats.
   */
  public enum DateCalendarEnum {
    GREGORIAN,
    JULIAN,
    ISO_8601,
    NONE;
  
    /**
     * Tests if the provided calendar is compatible with this calendar.
     *
     * @param otherCalendar calendar to test with this
     * @return whether the provided calendar is compatible with this
     */
    public boolean isCalendarCompatible(DateCalendarEnum otherCalendar) {
      if (this == NONE || otherCalendar == NONE) {
        return true;
      }
  
      return this == otherCalendar;
    }
  }
  