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 com.alibaba.wasp;
  
  /**
   * Used by createTable.
   * 
   */
  public enum FieldKeyWord {
    REQUIRED ("key_required"), //
    OPTIONAL ("key_optional"), //
    REPEATED ("key_repeated");//
  
    FieldKeyWord(String value) {
      this.value = value;
    }
  
    final String value;
  
    public String getValue() {
      return value;
    }
  
    public static FieldKeyWord returnValue(String value) {
      if (value.equals("key_required")) {
        return REQUIRED;
      } else if (value.equals("key_optional")) {
        return OPTIONAL;
      } else if (value.equals("key_repeated")) {
        return REPEATED;
      } else {
        throw new RuntimeException("Unkown value of FieldKeyWord.");
      }
    }
  }
  