Package com.google.gson.internal.bind

Class ReflectiveTypeAdapterFactory.Adapter<T,A>

java.lang.Object

com.google.gson.TypeAdapter<T>

com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.Adapter<T,A>

Type Parameters:

T - type of objects that this Adapter creates.

A - type of accumulator used to build the deserialization result.

Direct Known Subclasses:

ReflectiveTypeAdapterFactory.FieldReflectionAdapter, ReflectiveTypeAdapterFactory.RecordAdapter

Enclosing class:

ReflectiveTypeAdapterFactory

public abstract static class ReflectiveTypeAdapterFactory.Adapter<T,A>
extends TypeAdapter<T>

Base class for Adapters produced by this factory.

The ReflectiveTypeAdapterFactory.RecordAdapter is a special case to handle records for JVMs that support it, for all other types we use the ReflectiveTypeAdapterFactory.FieldReflectionAdapter. This class encapsulates the common logic for serialization and deserialization. During deserialization, we construct an accumulator A, which we use to accumulate values from the source JSON. After the object has been read in full, the finalize(Object) method is used to convert the accumulator to an instance of T.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final Map<String,ReflectiveTypeAdapterFactory.BoundField>	boundFields

Constructor Summary

Constructors

Constructor	Description
Adapter(Map<String,ReflectiveTypeAdapterFactory.BoundField> boundFields)

Method Summary

Modifier and Type	Method	Description
(package private) abstract A	createAccumulator()	Create the Object that will be used to collect each field value
(package private) abstract T	finalize(A accumulator)	Convert the accumulator to a final instance of T.
T	read(JsonReader in)	Reads one JSON value (an array, object, string, number, boolean or null) and converts it to a Java object.
(package private) abstract void	readField(A accumulator, JsonReader in, ReflectiveTypeAdapterFactory.BoundField field)	Read a single BoundField into the accumulator.
void	write(JsonWriter out, T value)	Writes one JSON value (an array, object, string, number, boolean or null) for value.

Methods inherited from class com.google.gson.TypeAdapter

fromJson, fromJson, fromJsonTree, nullSafe, toJson, toJson, toJsonTree

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

boundFields

final Map<String,ReflectiveTypeAdapterFactory.BoundField> boundFields

Constructor Details

Adapter

Adapter(Map<String,ReflectiveTypeAdapterFactory.BoundField> boundFields)

Method Details

write

public void write(JsonWriter out,
 T value)
           throws IOException

Description copied from class: TypeAdapter

Writes one JSON value (an array, object, string, number, boolean or null) for value.

Specified by:

write in class TypeAdapter<T>

Parameters:

value - the Java object to write. May be null.

Throws:

IOException

read

public T read(JsonReader in)
       throws IOException

Description copied from class: TypeAdapter

Reads one JSON value (an array, object, string, number, boolean or null) and converts it to a Java object. Returns the converted object.

Specified by:

read in class TypeAdapter<T>

Returns:

the converted Java object. May be null.

Throws:

IOException

createAccumulator

abstract A createAccumulator()

Create the Object that will be used to collect each field value

readField

abstract void readField(A accumulator,
 JsonReader in,
 ReflectiveTypeAdapterFactory.BoundField field)
                 throws IllegalAccessException,
IOException

Read a single BoundField into the accumulator. The JsonReader will be pointed at the start of the value for the BoundField to read from.

Throws:

IllegalAccessException

IOException

finalize

abstract T finalize(A accumulator)

Convert the accumulator to a final instance of T.