68 lines
2.0 KiB
Java
68 lines
2.0 KiB
Java
/*
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* Copyright (C) 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.gson;
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/**
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* Defines the expected format for a {@code long} or {@code Long} type when it is serialized.
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*
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* @since 1.3
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* @author Inderjeet Singh
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* @author Joel Leitch
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*/
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public enum LongSerializationPolicy {
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/**
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* This is the "default" serialization policy that will output a {@code Long} object as a JSON
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* number. For example, assume an object has a long field named "f" then the serialized output
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* would be: {@code {"f":123}}
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*
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* <p>A {@code null} value is serialized as {@link JsonNull}.
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*/
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DEFAULT() {
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@Override
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public JsonElement serialize(Long value) {
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if (value == null) {
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return JsonNull.INSTANCE;
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}
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return new JsonPrimitive(value);
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}
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},
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/**
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* Serializes a long value as a quoted string. For example, assume an object has a long field
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* named "f" then the serialized output would be: {@code {"f":"123"}}
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*
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* <p>A {@code null} value is serialized as {@link JsonNull}.
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*/
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STRING() {
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@Override
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public JsonElement serialize(Long value) {
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if (value == null) {
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return JsonNull.INSTANCE;
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}
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return new JsonPrimitive(value.toString());
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}
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};
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/**
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* Serialize this {@code value} using this serialization policy.
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*
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* @param value the long value to be serialized into a {@link JsonElement}
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* @return the serialized version of {@code value}
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*/
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public abstract JsonElement serialize(Long value);
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}
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