com.google.gson.LongSerializationPolicy Maven / Gradle / Ivy
/*
* 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 com.google.gson;
/**
* Defines the expected format for a {@code long} or {@code Long} type when it is 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}}
*
* A {@code null} value is serialized as {@link JsonNull}.
*/
DEFAULT() {
@Override public JsonElement serialize(Long value) {
if (value == null) {
return JsonNull.INSTANCE;
}
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"}}
*
*
A {@code null} value is serialized as {@link JsonNull}.
*/
STRING() {
@Override public JsonElement serialize(Long value) {
if (value == null) {
return JsonNull.INSTANCE;
}
return new JsonPrimitive(value.toString());
}
};
/**
* 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);
}