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;
  
  /**
   * Flags that can be added to a date/time format component.
   */
  public enum PatternModifier {
    FM(true, "FM"),
    TH_UPPER(false, "TH"),
    TH_LOWER(false, "th"),
    TM(true, "TM");
  
    private final boolean prefix;
    private final String modifierString;
  
    PatternModifier(boolean prefix, String modifierString) {
      this.prefix = prefix;
      this.modifierString = modifierString;
    }
  
    /**
     * Is this modifier placed before or after the pattern.
     *
     * @return true if this modifier is placed before the pattern
     */
    public boolean isPrefix() {
      return prefix;
    }
  
    /**
     * Get the text for this modifier.
     *
     * @return text for this modifier
     */
    public String getModifierString() {
      return modifierString;
    }
  }
  