GraphAdapterBuilder.Factory

java.lang.Object
- com.google.gson.graph.GraphAdapterBuilder.Factory

All Implemented Interfaces:

InstanceCreator<java.lang.Object>, TypeAdapterFactory

Enclosing class:

GraphAdapterBuilder
```
static class GraphAdapterBuilder.Factory
extends java.lang.Object
implements TypeAdapterFactory, InstanceCreator<java.lang.Object>
```
A factory that creates type adapters capable of serializing and deserializing object graphs.
This factory implements both TypeAdapterFactory and InstanceCreator interfaces. It is responsible for handling cyclic references by assigning unique names to objects and managing a graph during both serialization and deserialization.

Field Summary

Fields
Modifier and Type	Field	Description
`private java.lang.ThreadLocal<GraphAdapterBuilder.Graph>`	`graphThreadLocal`
`private java.util.Map<java.lang.reflect.Type,InstanceCreator<?>>`	`instanceCreators`

Constructor Summary

Constructors
Constructor Description

Factory(java.util.Map<java.lang.reflect.Type,InstanceCreator<?>> instanceCreators)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> TypeAdapter<T>`	`create(Gson gson, TypeToken<T> type)`	Returns a type adapter for `type`, or null if this factory doesn't support `type`.
`java.lang.Object`	`createInstance(java.lang.reflect.Type type)`	Hook for the graph adapter to get a reference to a deserialized value before that value is fully populated.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - instanceCreators
```
private final java.util.Map<java.lang.reflect.Type,InstanceCreator<?>> instanceCreators
```
  - graphThreadLocal
```
private final java.lang.ThreadLocal<GraphAdapterBuilder.Graph> graphThreadLocal
```
- Constructor Detail
  - Factory
```
Factory(java.util.Map<java.lang.reflect.Type,InstanceCreator<?>> instanceCreators)
```
- Method Detail
  - create
```
public <T> TypeAdapter<T> create(Gson gson,
                                 TypeToken<T> type)
```
    Description copied from interface: TypeAdapterFactory
    
    Returns a type adapter for type, or null if this factory doesn't support type.
    
    Specified by:
    
    create in interface TypeAdapterFactory
  - createInstance
```
public java.lang.Object createInstance(java.lang.reflect.Type type)
```
    Hook for the graph adapter to get a reference to a deserialized value before that value is fully populated. This is useful to deserialize values that directly or indirectly reference themselves: we can hand out an instance before read() returns.
    Gson should only ever call this method when we're expecting it to; that is only when we've called back into Gson to deserialize a tree.
    
    Specified by:
    
    createInstance in interface InstanceCreator<java.lang.Object>
    
    Parameters:
    
    type - the parameterized T represented as a Type.
    
    Returns:
    
    a default object instance of type T.