code: /*
   * Copyright (C) 2009 Google 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 tools.com.google.gson;
  
  /**
   * Defines the expected format for a {@code long} or {@code Long} type when its serialized.
   *
   * @since 1.3
   *
   * @author Inderjeet Singh
   * @author Joel Leitch
   */
  public enum LongSerializationPolicy {
    /**
     * This is the "default" serialization policy that will output a {@code long} object as a JSON
     * number.  For example, assume an object has a long field named "f" then the serialized output
     * would be:
     * {@code {"f":123}}.
     */
    DEFAULT() {
      @Override public JsonElement serialize(Long value) {
        return new JsonPrimitive(value);
      }
    },
    
    /**
     * Serializes a long value as a quoted string.  For example, assume an object has a long field 
     * named "f" then the serialized output would be:
     * {@code {"f":"123"}}.
     */
    STRING() {
      @Override public JsonElement serialize(Long value) {
        return new JsonPrimitive(String.valueOf(value));
      }
    };
    
    /**
     * Serialize this {@code value} using this serialization policy.
     *
     * @param value the long value to be serialized into a {@link JsonElement}
     * @return the serialized version of {@code value}
     */
    public abstract JsonElement serialize(Long value);
  }
  