Package com.google.gson

This package provides the Gson class to convert Json to Java and vice-versa.

See: Description

Interface Summary

Interface	Description
ExclusionStrategy	A strategy (or policy) definition that is used to decide whether or not a field or top-level class should be serialized or deserialized as part of the JSON output/input.
FieldNamingStrategy	A mechanism for providing custom field naming in Gson.
InstanceCreator<T>	This interface is implemented to create instances of a class that does not define a no-args constructor.
JsonDeserializationContext	Context for deserialization that is passed to a custom deserializer during invocation of its JsonDeserializer.deserialize(JsonElement, Type, JsonDeserializationContext) method.
JsonDeserializer<T>	Interface representing a custom deserializer for Json.
JsonSerializationContext	Context for serialization that is passed to a custom serializer during invocation of its JsonSerializer.serialize(Object, Type, JsonSerializationContext) method.
JsonSerializer<T>	Interface representing a custom serializer for Json.
ToNumberStrategy	A strategy that is used to control how numbers should be deserialized for Object and Number when a concrete type of the deserialized number is unknown in advance.
TypeAdapterFactory	Creates type adapters for set of related types.

Class Summary

Class	Description
FieldAttributes	A data object that stores attributes of a field.
Gson	This is the main class for using Gson.
GsonBuilder	Use this builder to construct a Gson instance when you need to set configuration options other than the default.
JsonArray	A class representing an array type in Json.
JsonElement	A class representing an element of Json.
JsonNull	A class representing a Json null value.
JsonObject	A class representing an object type in Json.
JsonParser	A parser to parse Json into a parse tree of JsonElements
JsonPrimitive	A class representing a Json primitive value.
JsonStreamParser	A streaming parser that allows reading of multiple JsonElements from the specified reader asynchronously.
TypeAdapter<T>	Converts Java objects to and from JSON.

Enum Summary

Enum	Description
FieldNamingPolicy	An enumeration that defines a few standard naming conventions for JSON field names.
LongSerializationPolicy	Defines the expected format for a long or Long type when it is serialized.
ToNumberPolicy	An enumeration that defines two standard number reading strategies and a couple of strategies to overcome some historical Gson limitations while deserializing numbers as Object and Number.

Exception Summary

Exception	Description
JsonIOException	This exception is raised when Gson was unable to read an input stream or write to one.
JsonParseException	This exception is raised if there is a serious issue that occurs during parsing of a Json string.
JsonSyntaxException	This exception is raised when Gson attempts to read (or write) a malformed JSON element.

Package com.google.gson Description

This package provides the Gson class to convert Json to Java and vice-versa.

The primary class to use is Gson which can be constructed with new Gson() (using default settings) or by using GsonBuilder (to configure various options such as using versioning and so on).