ObjectReaderProvider

java.lang.Object
- com.alibaba.fastjson2.reader.ObjectReaderProvider

All Implemented Interfaces:

ObjectCodecProvider
```
public class ObjectReaderProvider
extends java.lang.Object
implements ObjectCodecProvider
```
ObjectReaderProvider is responsible for providing and managing ObjectReader instances for deserializing JSON data into Java objects. It handles object creation, caching, type conversion, and auto-type support.
This provider supports various features including:
- Object reader caching for performance optimization
- Auto-type support with security controls
- Type conversion between different Java types
- Mixin support for modifying serialization behavior
- Module-based extensibility
Example usage:
```
 // Get default provider
 ObjectReaderProvider provider = JSONFactory.getDefaultObjectReaderProvider();

 // Get object reader for a specific type
 ObjectReader<User> reader = provider.getObjectReader(User.class);

 // Parse JSON string using the reader
 User user = reader.readObject(JSONReader.of(jsonString));

 // Register custom type converter
 provider.registerTypeConvert(String.class, Integer.class, Integer::valueOf);
 
```
Since:

2.0.0

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

private static class ObjectReaderProvider.LRUAutoTypeCache

private static class ObjectReaderProvider.ObjectReaderCachePair

Nested Classes
Modifier and Type	Class and Description
`private static class`	`ObjectReaderProvider.LRUAutoTypeCache`
`private static class`	`ObjectReaderProvider.ObjectReaderCachePair`

Field Summary

Fields
Modifier and Type	Field and Description
`private long[]`	`acceptHashCodes`
`private java.util.Set<java.lang.String>`	`acceptNameSet` The accept names behind `acceptHashCodes`, normalized the same way the rolling hash in `checkAutoType(java.lang.String, java.lang.Class<?>, long)` normalizes a type name.
`(package private) static java.lang.String`	`ANTI_COLLISION_HASH_MAP` Always accepted, it is the map implementation fastjson 1.x substitutes for `HashMap` when hash collision protection is enabled.
`(package private) static long`	`ANTI_COLLISION_HASH_MAP_HASH`
`(package private) static java.lang.String[]`	`AUTO_TYPE_ACCEPT_LIST`
`private JSONReader.AutoTypeBeforeHandler`	`autoTypeBeforeHandler`
`private java.util.function.Consumer<java.lang.Class>`	`autoTypeHandler`
`(package private) ObjectReaderProvider.LRUAutoTypeCache`	`autoTypeList`
`(package private) java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,ObjectReader>`	`cache`
`(package private) java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,ObjectReader>`	`cacheFieldBased`
`(package private) ObjectReaderCreator`	`creator`
`(package private) static JSONReader.AutoTypeBeforeHandler`	`DEFAULT_AUTO_TYPE_BEFORE_HANDLER`
`(package private) static java.util.function.Consumer<java.lang.Class>`	`DEFAULT_AUTO_TYPE_HANDLER`
`(package private) static boolean`	`DEFAULT_AUTO_TYPE_HANDLER_INIT_ERROR`
`(package private) static java.lang.String[]`	`DENYS`
`(package private) boolean`	`disableArrayMapping`
`(package private) boolean`	`disableAutoType`
`(package private) boolean`	`disableJSONB`
`(package private) boolean`	`disableReferenceDetect`
`(package private) boolean`	`disableSmartMatch`
`(package private) static java.lang.ClassLoader`	`FASTJSON2_CLASS_LOADER`
`(package private) java.util.concurrent.ConcurrentMap<java.lang.Long,ObjectReader>`	`hashCache`
`(package private) java.util.concurrent.ConcurrentMap<java.lang.Class,java.lang.Class>`	`mixInCache`
`(package private) java.util.List<ObjectReaderModule>`	`modules`
`(package private) PropertyNamingStrategy`	`namingStrategy`
`(package private) static ObjectReaderProvider.ObjectReaderCachePair`	`readerCache`
`static boolean`	`SAFE_MODE`
`(package private) java.util.concurrent.ConcurrentMap<java.lang.Integer,java.util.concurrent.ConcurrentHashMap<java.lang.Long,ObjectReader>>`	`tclHashCaches`
`private java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,java.util.Map<java.lang.reflect.Type,java.util.function.Function>>`	`typeConverts`

Constructor Summary

Constructors
Constructor and Description
`ObjectReaderProvider()` Constructs an ObjectReaderProvider with the default ObjectReaderCreator based on system configuration.
`ObjectReaderProvider(ObjectReaderCreator creator)` Constructs an ObjectReaderProvider with the specified ObjectReaderCreator.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`void`	`addAutoTypeAccept(java.lang.String name)` Adds a type name to the auto-type accept list.
`void`	`addAutoTypeDeny(java.lang.String name)` Deprecated.
`(package private) void`	`afterAutoType(java.lang.String typeName, java.lang.Class type)`
`java.lang.Class<?>`	`checkAutoType(java.lang.String typeName, java.lang.Class<?> expectClass, long features)` Checks and resolves the class for auto-type support.
`void`	`cleanup(java.lang.Class objectClass)` Cleans up cached ObjectReaders and mixin mappings associated with the specified class.
`void`	`cleanup(java.lang.ClassLoader classLoader)` Cleans up cached ObjectReaders associated with the specified ClassLoader.
`void`	`cleanupMixIn()` Clears all mixin mappings.
`void`	`clear()` Clears all cached ObjectReaders and mixin mappings.
`java.util.function.Function<java.util.function.Consumer,CharArrayValueConsumer>`	`createCharArrayValueConsumerCreator(java.lang.Class objectClass, FieldReader[] fieldReaderArray)` Creates a value consumer creator for char array values.
`FieldReader`	`createFieldReader(java.lang.Class objectClass, java.lang.String fieldName, long readerFeatures)` Creates a FieldReader for the specified class, field name, and reader features.
`<T> java.util.function.Supplier<T>`	`createObjectCreator(java.lang.Class<T> objectClass, long readerFeatures)` Creates an object creator (supplier) for the specified class and reader features.
`<T> ObjectReader<T>`	`createObjectReader(java.lang.String[] names, java.lang.reflect.Type[] types, long[] features, java.util.function.Supplier<T> supplier, FieldConsumer<T> c)` Creates an ObjectReader for a custom object with specified field names, types, features, and consumer.
`<T> ObjectReader<T>`	`createObjectReader(java.lang.String[] names, java.lang.reflect.Type[] types, java.util.function.Supplier<T> supplier, FieldConsumer<T> c)` Creates an ObjectReader for a custom object with specified field names, types, and consumer.
`java.util.function.Function<java.util.function.Consumer,ByteArrayValueConsumer>`	`createValueConsumerCreator(java.lang.Class objectClass, FieldReader[] fieldReaderArray)` Creates a value consumer creator for byte array values.
`JSONReader.AutoTypeBeforeHandler`	`getAutoTypeBeforeHandler()` Gets the auto-type before handler that is invoked before type resolution.
`java.util.function.Consumer<java.lang.Class>`	`getAutoTypeHandler()` Gets the auto-type handler that is invoked when a type is auto-resolved.
`java.util.Map<java.lang.String,java.util.Date>`	`getAutoTypeList()`
`void`	`getBeanInfo(BeanInfo beanInfo, java.lang.Class objectClass)` Gets bean information for the specified class by delegating to registered modules.
`ObjectReaderCreator`	`getCreator()` Gets the ObjectReaderCreator used by this provider.
`void`	`getFieldInfo(FieldInfo fieldInfo, java.lang.Class objectClass, java.lang.reflect.Constructor constructor, int paramIndex, java.lang.reflect.Parameter parameter)` Gets field information for the specified constructor parameter.
`void`	`getFieldInfo(FieldInfo fieldInfo, java.lang.Class objectClass, java.lang.reflect.Field field)` Gets field information for the specified field of a class.
`void`	`getFieldInfo(FieldInfo fieldInfo, java.lang.Class objectClass, java.lang.reflect.Method method)` Gets field information for the specified method of a class.
`void`	`getFieldInfo(FieldInfo fieldInfo, java.lang.Class objectClass, java.lang.reflect.Method method, int paramIndex, java.lang.reflect.Parameter parameter)` Gets field information for the specified method parameter.
`java.lang.Class`	`getMixIn(java.lang.Class target)` Gets the mixin source class for the specified target class.
`java.util.List<ObjectReaderModule>`	`getModules()` Gets the list of registered ObjectReader modules.
`PropertyNamingStrategy`	`getNamingStrategy()` Gets the property naming strategy used by this provider.
`ObjectReader`	`getObjectReader(long hashCode)` Gets an ObjectReader by its hash code.
`ObjectReader`	`getObjectReader(java.lang.String typeName, java.lang.Class<?> expectClass, long features)` Gets an ObjectReader for the specified type name, expected class, and features.
`ObjectReader`	`getObjectReader(java.lang.reflect.Type objectType)` Gets an ObjectReader for the specified type.
`ObjectReader`	`getObjectReader(java.lang.reflect.Type objectType, boolean fieldBased)` Gets an ObjectReader for the specified type with field-based option.
`private ObjectReader`	`getObjectReaderInternal(java.lang.reflect.Type objectType, boolean fieldBased)`
`private ObjectReader`	`getPreviousObjectReader(boolean fieldBased, java.lang.reflect.Type objectType, ObjectReader boundObjectReader)`
`java.util.function.Function`	`getTypeConvert(java.lang.reflect.Type from, java.lang.reflect.Type to)` Gets the type converter function that can convert values from one type to another.
`(package private) void`	`init()`
`boolean`	`isDisableArrayMapping()` Checks if array mapping is disabled.
`boolean`	`isDisableAutoType()` Checks if auto-type support is disabled.
`boolean`	`isDisableJSONB()` Checks if JSONB support is disabled.
`boolean`	`isDisableReferenceDetect()` Checks if reference detection is disabled.
`boolean`	`isDisableSmartMatch()` Checks if smart match is disabled.
`(package private) static boolean`	`match(java.lang.reflect.Type objectType, ObjectReader objectReader, java.lang.ClassLoader classLoader)`
`void`	`mixIn(java.lang.Class target, java.lang.Class mixinSource)` Registers a mixin mapping between a target class and a mixin source class.
`boolean`	`register(ObjectReaderModule module)` Registers an ObjectReaderModule.
`ObjectReader`	`register(java.lang.reflect.Type type, ObjectReader objectReader)` Registers an ObjectReader for the specified type using method-based reading.
`ObjectReader`	`register(java.lang.reflect.Type type, ObjectReader objectReader, boolean fieldBased)` Registers an ObjectReader for the specified type.
`void`	`registerIfAbsent(long hashCode, ObjectReader objectReader)` Registers an ObjectReader for the specified hash code if it is not already registered.
`ObjectReader`	`registerIfAbsent(java.lang.reflect.Type type, ObjectReader objectReader)` Registers an ObjectReader for the specified type using method-based reading if it is not already registered.
`ObjectReader`	`registerIfAbsent(java.lang.reflect.Type type, ObjectReader objectReader, boolean fieldBased)` Registers an ObjectReader for the specified type if it is not already registered.
`void`	`registerSeeAlsoSubType(java.lang.Class subTypeClass)` Registers a subtype class for see-also support.
`void`	`registerSeeAlsoSubType(java.lang.Class subTypeClass, java.lang.String subTypeClassName)` Registers a subtype class with a specific name for see-also support.
`java.util.function.Function`	`registerTypeConvert(java.lang.reflect.Type from, java.lang.reflect.Type to, java.util.function.Function typeConvert)` Registers a type converter function that can convert values from one type to another.
`void`	`setAutoTypeBeforeHandler(JSONReader.AutoTypeBeforeHandler autoTypeBeforeHandler)` Sets the auto-type before handler that will be invoked before type resolution.
`void`	`setAutoTypeHandler(java.util.function.Consumer<java.lang.Class> autoTypeHandler)` Sets the auto-type handler that will be invoked when a type is auto-resolved.
`void`	`setDisableArrayMapping(boolean disableArrayMapping)` Sets whether array mapping is disabled.
`void`	`setDisableAutoType(boolean disableAutoType)` Sets whether auto-type support is disabled.
`void`	`setDisableJSONB(boolean disableJSONB)` Sets whether JSONB support is disabled.
`void`	`setDisableReferenceDetect(boolean disableReferenceDetect)` Sets whether reference detection is disabled.
`void`	`setDisableSmartMatch(boolean disableSmartMatch)` Sets whether smart match is disabled.
`void`	`setNamingStrategy(PropertyNamingStrategy namingStrategy)` Sets the property naming strategy used by this provider.
`boolean`	`unregister(ObjectReaderModule module)` Unregisters an ObjectReaderModule.
`ObjectReader`	`unregisterObjectReader(java.lang.reflect.Type type)` Unregisters the ObjectReader for the specified type using method-based reading.
`ObjectReader`	`unregisterObjectReader(java.lang.reflect.Type type, boolean fieldBased)` Unregisters the ObjectReader for the specified type.
`boolean`	`unregisterObjectReader(java.lang.reflect.Type type, ObjectReader reader)` Unregisters the specified ObjectReader for the given type using method-based reading, but only if the currently registered reader matches the specified reader.
`boolean`	`unregisterObjectReader(java.lang.reflect.Type type, ObjectReader reader, boolean fieldBased)` Unregisters the specified ObjectReader for the given type, but only if the currently registered reader matches the specified reader.

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

- Field Detail
  - FASTJSON2_CLASS_LOADER
```
static final java.lang.ClassLoader FASTJSON2_CLASS_LOADER
```
  - SAFE_MODE
```
public static final boolean SAFE_MODE
```
  - DENYS
```
static final java.lang.String[] DENYS
```
  - AUTO_TYPE_ACCEPT_LIST
```
static final java.lang.String[] AUTO_TYPE_ACCEPT_LIST
```
  - DEFAULT_AUTO_TYPE_BEFORE_HANDLER
```
static JSONReader.AutoTypeBeforeHandler DEFAULT_AUTO_TYPE_BEFORE_HANDLER
```
  - DEFAULT_AUTO_TYPE_HANDLER
```
static java.util.function.Consumer<java.lang.Class> DEFAULT_AUTO_TYPE_HANDLER
```
  - DEFAULT_AUTO_TYPE_HANDLER_INIT_ERROR
```
static boolean DEFAULT_AUTO_TYPE_HANDLER_INIT_ERROR
```
  - readerCache
```
static ObjectReaderProvider.ObjectReaderCachePair readerCache
```
  - cache
```
final java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,ObjectReader> cache
```
  - cacheFieldBased
```
final java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,ObjectReader> cacheFieldBased
```
  - tclHashCaches
```
final java.util.concurrent.ConcurrentMap<java.lang.Integer,java.util.concurrent.ConcurrentHashMap<java.lang.Long,ObjectReader>> tclHashCaches
```
  - hashCache
```
final java.util.concurrent.ConcurrentMap<java.lang.Long,ObjectReader> hashCache
```
  - mixInCache
```
final java.util.concurrent.ConcurrentMap<java.lang.Class,java.lang.Class> mixInCache
```
  - autoTypeList
```
final ObjectReaderProvider.LRUAutoTypeCache autoTypeList
```
  - typeConverts
```
private final java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,java.util.Map<java.lang.reflect.Type,java.util.function.Function>> typeConverts
```
  - creator
```
final ObjectReaderCreator creator
```
  - modules
```
final java.util.List<ObjectReaderModule> modules
```
  - disableReferenceDetect
```
boolean disableReferenceDetect
```
  - disableArrayMapping
```
boolean disableArrayMapping
```
  - disableJSONB
```
boolean disableJSONB
```
  - disableAutoType
```
boolean disableAutoType
```
  - disableSmartMatch
```
boolean disableSmartMatch
```
  - ANTI_COLLISION_HASH_MAP
```
static final java.lang.String ANTI_COLLISION_HASH_MAP
```
    Always accepted, it is the map implementation fastjson 1.x substitutes for HashMap when hash collision protection is enabled.
    
    See Also:
    
    Constant Field Values
  - ANTI_COLLISION_HASH_MAP_HASH
```
static final long ANTI_COLLISION_HASH_MAP_HASH
```
    See Also:
    
    Constant Field Values
  - acceptHashCodes
```
private volatile long[] acceptHashCodes
```
  - acceptNameSet
```
private volatile java.util.Set<java.lang.String> acceptNameSet
```
    The accept names behind acceptHashCodes, normalized the same way the rolling hash in checkAutoType(java.lang.String, java.lang.Class<?>, long) normalizes a type name. A hash match is only honored when the matched prefix text is in this set, so a hash collision alone cannot whitelist a type name.
  - autoTypeBeforeHandler
```
private JSONReader.AutoTypeBeforeHandler autoTypeBeforeHandler
```
  - autoTypeHandler
```
private java.util.function.Consumer<java.lang.Class> autoTypeHandler
```
  - namingStrategy
```
PropertyNamingStrategy namingStrategy
```
- Constructor Detail
  - ObjectReaderProvider
```
public ObjectReaderProvider()
```
    Constructs an ObjectReaderProvider with the default ObjectReaderCreator based on system configuration. The creator selection follows this priority: 1. ASM creator (default, if not Android or GraalVM) 2. Reflection/Lambda creator (fallback)
    The provider is initialized with the base module and all registered modules.
  - ObjectReaderProvider
```
public ObjectReaderProvider(ObjectReaderCreator creator)
```
    Constructs an ObjectReaderProvider with the specified ObjectReaderCreator.
    
    Parameters:
    
    creator - the ObjectReaderCreator to use for creating ObjectReader instances
- Method Detail
  - registerIfAbsent
```
public void registerIfAbsent(long hashCode,
                             ObjectReader objectReader)
```
    Registers an ObjectReader for the specified hash code if it is not already registered. This method handles both thread-local and global caching.
    
    Parameters:
    
    hashCode - the hash code for which to register the ObjectReader
    
    objectReader - the ObjectReader to register
  - addAutoTypeAccept
```
public void addAutoTypeAccept(java.lang.String name)
```
    Adds a type name to the auto-type accept list. Types in this list are allowed for auto-type deserialization.
    
    Parameters:
    
    name - the type name to add to the accept list
  - addAutoTypeDeny
```
@Deprecated
public void addAutoTypeDeny(java.lang.String name)
```
    Deprecated.
  - getAutoTypeHandler
```
public java.util.function.Consumer<java.lang.Class> getAutoTypeHandler()
```
    Gets the auto-type handler that is invoked when a type is auto-resolved.
    
    Returns:
    
    the auto-type handler, or null if none is set
  - setAutoTypeHandler
```
public void setAutoTypeHandler(java.util.function.Consumer<java.lang.Class> autoTypeHandler)
```
    Sets the auto-type handler that will be invoked when a type is auto-resolved.
    
    Parameters:
    
    autoTypeHandler - the auto-type handler to set
  - getMixIn
```
public java.lang.Class getMixIn(java.lang.Class target)
```
    Gets the mixin source class for the specified target class.
    
    Specified by:
    
    getMixIn in interface ObjectCodecProvider
    
    Parameters:
    
    target - the target class
    
    Returns:
    
    the mixin source class, or null if no mixin is registered for the target
  - cleanupMixIn
```
public void cleanupMixIn()
```
    Clears all mixin mappings.
  - mixIn
```
public void mixIn(java.lang.Class target,
                  java.lang.Class mixinSource)
```
    Registers a mixin mapping between a target class and a mixin source class. Mixin allows modifying the serialization/deserialization behavior of a class by applying annotations from another class.
    
    Parameters:
    
    target - the target class to which the mixin will be applied
    
    mixinSource - the source class from which annotations will be copied, or null to remove the mixin
  - registerSeeAlsoSubType
```
public void registerSeeAlsoSubType(java.lang.Class subTypeClass)
```
    Registers a subtype class for see-also support. This allows the provider to recognize and handle subtypes of the specified superclass.
    
    Parameters:
    
    subTypeClass - the subtype class to register
  - registerSeeAlsoSubType
```
public void registerSeeAlsoSubType(java.lang.Class subTypeClass,
                                   java.lang.String subTypeClassName)
```
    Registers a subtype class with a specific name for see-also support.
    
    Parameters:
    
    subTypeClass - the subtype class to register
    
    subTypeClassName - the name of the subtype class, or null to use the class's simple name
    
    Throws:
    
    JSONException - if the superclass is null
  - register
```
public ObjectReader register(java.lang.reflect.Type type,
                             ObjectReader objectReader,
                             boolean fieldBased)
```
    Registers an ObjectReader for the specified type. If an ObjectReader is already registered for the type, it will be replaced.
    
    Parameters:
    
    type - the type for which to register the ObjectReader
    
    objectReader - the ObjectReader to register, or null to unregister
    
    fieldBased - whether the ObjectReader is field-based
    
    Returns:
    
    the previous ObjectReader for the type, or null if there was no previous ObjectReader
  - register
```
public ObjectReader register(java.lang.reflect.Type type,
                             ObjectReader objectReader)
```
    Registers an ObjectReader for the specified type using method-based reading. If an ObjectReader is already registered for the type, it will be replaced.
    
    Parameters:
    
    type - the type for which to register the ObjectReader
    
    objectReader - the ObjectReader to register, or null to unregister
    
    Returns:
    
    the previous ObjectReader for the type, or null if there was no previous ObjectReader
  - registerIfAbsent
```
public ObjectReader registerIfAbsent(java.lang.reflect.Type type,
                                     ObjectReader objectReader)
```
    Registers an ObjectReader for the specified type using method-based reading if it is not already registered.
    
    Parameters:
    
    type - the type for which to register the ObjectReader
    
    objectReader - the ObjectReader to register
    
    Returns:
    
    the previous ObjectReader for the type, or null if there was no previous ObjectReader
  - registerIfAbsent
```
public ObjectReader registerIfAbsent(java.lang.reflect.Type type,
                                     ObjectReader objectReader,
                                     boolean fieldBased)
```
    Registers an ObjectReader for the specified type if it is not already registered.
    
    Parameters:
    
    type - the type for which to register the ObjectReader
    
    objectReader - the ObjectReader to register
    
    fieldBased - whether the ObjectReader is field-based
    
    Returns:
    
    the previous ObjectReader for the type, or null if there was no previous ObjectReader
  - unregisterObjectReader
```
public ObjectReader unregisterObjectReader(java.lang.reflect.Type type)
```
    Unregisters the ObjectReader for the specified type using method-based reading.
    
    Parameters:
    
    type - the type for which to unregister the ObjectReader
    
    Returns:
    
    the unregistered ObjectReader, or null if there was no ObjectReader for the type
  - unregisterObjectReader
```
public ObjectReader unregisterObjectReader(java.lang.reflect.Type type,
                                           boolean fieldBased)
```
    Unregisters the ObjectReader for the specified type.
    
    Parameters:
    
    type - the type for which to unregister the ObjectReader
    
    fieldBased - whether the ObjectReader is field-based
    
    Returns:
    
    the unregistered ObjectReader, or null if there was no ObjectReader for the type
  - unregisterObjectReader
```
public boolean unregisterObjectReader(java.lang.reflect.Type type,
                                      ObjectReader reader)
```
    Unregisters the specified ObjectReader for the given type using method-based reading, but only if the currently registered reader matches the specified reader.
    
    Parameters:
    
    type - the type for which to unregister the ObjectReader
    
    reader - the ObjectReader to unregister
    
    Returns:
    
    true if the ObjectReader was unregistered, false otherwise
  - unregisterObjectReader
```
public boolean unregisterObjectReader(java.lang.reflect.Type type,
                                      ObjectReader reader,
                                      boolean fieldBased)
```
    Unregisters the specified ObjectReader for the given type, but only if the currently registered reader matches the specified reader.
    
    Parameters:
    
    type - the type for which to unregister the ObjectReader
    
    reader - the ObjectReader to unregister
    
    fieldBased - whether the ObjectReader is field-based
    
    Returns:
    
    true if the ObjectReader was unregistered, false otherwise
  - register
```
public boolean register(ObjectReaderModule module)
```
    Registers an ObjectReaderModule. If the module is already registered, this method does nothing and returns false.
    
    Parameters:
    
    module - the module to register
    
    Returns:
    
    true if the module was registered, false if it was already registered
  - unregister
```
public boolean unregister(ObjectReaderModule module)
```
    Unregisters an ObjectReaderModule.
    
    Parameters:
    
    module - the module to unregister
    
    Returns:
    
    true if the module was unregistered, false if it was not registered
  - cleanup
```
public void cleanup(java.lang.Class objectClass)
```
    Cleans up cached ObjectReaders and mixin mappings associated with the specified class.
    
    Parameters:
    
    objectClass - the class for which to clean up cached ObjectReaders
  - clear
```
public void clear()
```
    Clears all cached ObjectReaders and mixin mappings.
    
    Since:
    
    2.0.53
  - match
```
static boolean match(java.lang.reflect.Type objectType,
                     ObjectReader objectReader,
                     java.lang.ClassLoader classLoader)
```
  - cleanup
```
public void cleanup(java.lang.ClassLoader classLoader)
```
    Cleans up cached ObjectReaders associated with the specified ClassLoader. This method removes all cached readers that are related to classes loaded by the given ClassLoader.
    
    Parameters:
    
    classLoader - the ClassLoader for which to clean up cached ObjectReaders
  - getCreator
```
public ObjectReaderCreator getCreator()
```
    Gets the ObjectReaderCreator used by this provider. If a context-specific creator is available, it will be returned; otherwise, the default creator for this provider will be returned.
    
    Returns:
    
    the ObjectReaderCreator
  - init
```
void init()
```
  - getTypeConvert
```
public java.util.function.Function getTypeConvert(java.lang.reflect.Type from,
                                                  java.lang.reflect.Type to)
```
    Gets the type converter function that can convert values from one type to another.
    
    Parameters:
    
    from - the source type
    
    to - the target type
    
    Returns:
    
    the converter function for the type pair, or null if no converter is registered
  - registerTypeConvert
```
public java.util.function.Function registerTypeConvert(java.lang.reflect.Type from,
                                                       java.lang.reflect.Type to,
                                                       java.util.function.Function typeConvert)
```
    Registers a type converter function that can convert values from one type to another.
    
    Parameters:
    
    from - the source type
    
    to - the target type
    
    typeConvert - the function to convert from source type to target type
    
    Returns:
    
    the previous converter function for the type pair, or null if there was no previous converter
  - getObjectReader
```
public ObjectReader getObjectReader(long hashCode)
```
    Gets an ObjectReader by its hash code. This method first checks thread-local cache, then global cache for performance optimization.
    
    Parameters:
    
    hashCode - the hash code of the ObjectReader to retrieve
    
    Returns:
    
    the ObjectReader associated with the hash code, or null if not found
  - getObjectReader
```
public ObjectReader getObjectReader(java.lang.String typeName,
                                    java.lang.Class<?> expectClass,
                                    long features)
```
    Gets an ObjectReader for the specified type name, expected class, and features. This method handles auto-type resolution and ObjectReader caching.
    
    Parameters:
    
    typeName - the name of the type
    
    expectClass - the expected class type
    
    features - the JSON reader features
    
    Returns:
    
    the ObjectReader for the specified type, or null if the type cannot be resolved
  - afterAutoType
```
final void afterAutoType(java.lang.String typeName,
                         java.lang.Class type)
```
  - checkAutoType
```
public java.lang.Class<?> checkAutoType(java.lang.String typeName,
                                        java.lang.Class<?> expectClass,
                                        long features)
```
    Checks and resolves the class for auto-type support. This method handles security validation and class loading for auto-type deserialization.
    
    Parameters:
    
    typeName - the name of the type to check
    
    expectClass - the expected class type
    
    features - the JSON reader features
    
    Returns:
    
    the resolved Class, or null if the type cannot be resolved or is not allowed
    
    Throws:
    
    JSONException - if the type is not supported or security checks fail
  - getModules
```
public java.util.List<ObjectReaderModule> getModules()
```
    Gets the list of registered ObjectReader modules.
    
    Returns:
    
    the list of modules
  - getBeanInfo
```
public void getBeanInfo(BeanInfo beanInfo,
                        java.lang.Class objectClass)
```
    Gets bean information for the specified class by delegating to registered modules.
    
    Parameters:
    
    beanInfo - the BeanInfo object to populate with bean information
    
    objectClass - the class for which to get bean information
  - getFieldInfo
```
public void getFieldInfo(FieldInfo fieldInfo,
                         java.lang.Class objectClass,
                         java.lang.reflect.Field field)
```
    Gets field information for the specified field of a class.
    
    Parameters:
    
    fieldInfo - the FieldInfo object to populate with field information
    
    objectClass - the class containing the field
    
    field - the field for which to get information
  - getFieldInfo
```
public void getFieldInfo(FieldInfo fieldInfo,
                         java.lang.Class objectClass,
                         java.lang.reflect.Constructor constructor,
                         int paramIndex,
                         java.lang.reflect.Parameter parameter)
```
    Gets field information for the specified constructor parameter.
    
    Parameters:
    
    fieldInfo - the FieldInfo object to populate with field information
    
    objectClass - the class containing the constructor
    
    constructor - the constructor containing the parameter
    
    paramIndex - the index of the parameter in the constructor
    
    parameter - the parameter for which to get information
  - getFieldInfo
```
public void getFieldInfo(FieldInfo fieldInfo,
                         java.lang.Class objectClass,
                         java.lang.reflect.Method method,
                         int paramIndex,
                         java.lang.reflect.Parameter parameter)
```
    Gets field information for the specified method parameter.
    
    Parameters:
    
    fieldInfo - the FieldInfo object to populate with field information
    
    objectClass - the class containing the method
    
    method - the method containing the parameter
    
    paramIndex - the index of the parameter in the method
    
    parameter - the parameter for which to get information
  - getObjectReader
```
public ObjectReader getObjectReader(java.lang.reflect.Type objectType)
```
    Gets an ObjectReader for the specified type. If an ObjectReader for the type is already cached, it will be returned directly. Otherwise, a new ObjectReader will be created and cached.
    
    Parameters:
    
    objectType - the type for which to get an ObjectReader
    
    Returns:
    
    the ObjectReader for the specified type
  - createValueConsumerCreator
```
public java.util.function.Function<java.util.function.Consumer,ByteArrayValueConsumer> createValueConsumerCreator(java.lang.Class objectClass,
                                                                                                                  FieldReader[] fieldReaderArray)
```
    Creates a value consumer creator for byte array values.
    
    Parameters:
    
    objectClass - the class for which to create the value consumer creator
    
    fieldReaderArray - the field readers to use
    
    Returns:
    
    a function that creates ByteArrayValueConsumer instances
  - createCharArrayValueConsumerCreator
```
public java.util.function.Function<java.util.function.Consumer,CharArrayValueConsumer> createCharArrayValueConsumerCreator(java.lang.Class objectClass,
                                                                                                                           FieldReader[] fieldReaderArray)
```
    Creates a value consumer creator for char array values.
    
    Parameters:
    
    objectClass - the class for which to create the value consumer creator
    
    fieldReaderArray - the field readers to use
    
    Returns:
    
    a function that creates CharArrayValueConsumer instances
  - getObjectReader
```
public ObjectReader getObjectReader(java.lang.reflect.Type objectType,
                                    boolean fieldBased)
```
    Gets an ObjectReader for the specified type with field-based option. If an ObjectReader for the type is already cached, it will be returned directly. Otherwise, a new ObjectReader will be created and cached.
    
    Parameters:
    
    objectType - the type for which to get an ObjectReader
    
    fieldBased - whether to use field-based reading (true) or method-based reading (false)
    
    Returns:
    
    the ObjectReader for the specified type
  - getObjectReaderInternal
```
private ObjectReader getObjectReaderInternal(java.lang.reflect.Type objectType,
                                             boolean fieldBased)
```
  - getPreviousObjectReader
```
private ObjectReader getPreviousObjectReader(boolean fieldBased,
                                             java.lang.reflect.Type objectType,
                                             ObjectReader boundObjectReader)
```
  - getAutoTypeBeforeHandler
```
public JSONReader.AutoTypeBeforeHandler getAutoTypeBeforeHandler()
```
    Gets the auto-type before handler that is invoked before type resolution.
    
    Returns:
    
    the auto-type before handler, or null if none is set
  - setAutoTypeBeforeHandler
```
public void setAutoTypeBeforeHandler(JSONReader.AutoTypeBeforeHandler autoTypeBeforeHandler)
```
    Sets the auto-type before handler that will be invoked before type resolution.
    
    Parameters:
    
    autoTypeBeforeHandler - the auto-type before handler to set
  - getAutoTypeList
```
public java.util.Map<java.lang.String,java.util.Date> getAutoTypeList()
```
  - getFieldInfo
```
public void getFieldInfo(FieldInfo fieldInfo,
                         java.lang.Class objectClass,
                         java.lang.reflect.Method method)
```
    Gets field information for the specified method of a class. This method also handles setter methods by attempting to find corresponding fields.
    
    Parameters:
    
    fieldInfo - the FieldInfo object to populate with field information
    
    objectClass - the class containing the method
    
    method - the method for which to get information
  - createObjectCreator
```
public <T> java.util.function.Supplier<T> createObjectCreator(java.lang.Class<T> objectClass,
                                                              long readerFeatures)
```
    Creates an object creator (supplier) for the specified class and reader features.
    
    Type Parameters:
    
    T - the type of the object
    
    Parameters:
    
    objectClass - the class for which to create an object creator
    
    readerFeatures - the reader features to use
    
    Returns:
    
    a supplier function that creates new instances of the object
    
    Throws:
    
    JSONException - if no default constructor is found for the class
  - createFieldReader
```
public FieldReader createFieldReader(java.lang.Class objectClass,
                                     java.lang.String fieldName,
                                     long readerFeatures)
```
    Creates a FieldReader for the specified class, field name, and reader features.
    
    Parameters:
    
    objectClass - the class containing the field
    
    fieldName - the name of the field
    
    readerFeatures - the reader features to use
    
    Returns:
    
    a FieldReader for the specified field, or null if the field is not found
  - createObjectReader
```
public <T> ObjectReader<T> createObjectReader(java.lang.String[] names,
                                              java.lang.reflect.Type[] types,
                                              java.util.function.Supplier<T> supplier,
                                              FieldConsumer<T> c)
```
    Creates an ObjectReader for a custom object with specified field names, types, and consumer.
    
    Type Parameters:
    
    T - the type of the object
    
    Parameters:
    
    names - the field names
    
    types - the field types
    
    supplier - the supplier function to create new instances of the object
    
    c - the field consumer to set field values
    
    Returns:
    
    the created ObjectReader
  - createObjectReader
```
public <T> ObjectReader<T> createObjectReader(java.lang.String[] names,
                                              java.lang.reflect.Type[] types,
                                              long[] features,
                                              java.util.function.Supplier<T> supplier,
                                              FieldConsumer<T> c)
```
    Creates an ObjectReader for a custom object with specified field names, types, features, and consumer.
    
    Type Parameters:
    
    T - the type of the object
    
    Parameters:
    
    names - the field names
    
    types - the field types
    
    features - the field features (can be null)
    
    supplier - the supplier function to create new instances of the object
    
    c - the field consumer to set field values
    
    Returns:
    
    the created ObjectReader
  - isDisableReferenceDetect
```
public boolean isDisableReferenceDetect()
```
    Checks if reference detection is disabled.
    
    Returns:
    
    true if reference detection is disabled, false otherwise
  - isDisableAutoType
```
public boolean isDisableAutoType()
```
    Checks if auto-type support is disabled.
    
    Returns:
    
    true if auto-type support is disabled, false otherwise
  - isDisableJSONB
```
public boolean isDisableJSONB()
```
    Checks if JSONB support is disabled.
    
    Returns:
    
    true if JSONB support is disabled, false otherwise
  - isDisableArrayMapping
```
public boolean isDisableArrayMapping()
```
    Checks if array mapping is disabled.
    
    Returns:
    
    true if array mapping is disabled, false otherwise
  - setDisableReferenceDetect
```
public void setDisableReferenceDetect(boolean disableReferenceDetect)
```
    Sets whether reference detection is disabled.
    
    Parameters:
    
    disableReferenceDetect - true to disable reference detection, false to enable it
  - setDisableArrayMapping
```
public void setDisableArrayMapping(boolean disableArrayMapping)
```
    Sets whether array mapping is disabled.
    
    Parameters:
    
    disableArrayMapping - true to disable array mapping, false to enable it
  - setDisableJSONB
```
public void setDisableJSONB(boolean disableJSONB)
```
    Sets whether JSONB support is disabled.
    
    Parameters:
    
    disableJSONB - true to disable JSONB support, false to enable it
  - setDisableAutoType
```
public void setDisableAutoType(boolean disableAutoType)
```
    Sets whether auto-type support is disabled.
    
    Parameters:
    
    disableAutoType - true to disable auto-type support, false to enable it
  - isDisableSmartMatch
```
public boolean isDisableSmartMatch()
```
    Checks if smart match is disabled.
    
    Returns:
    
    true if smart match is disabled, false otherwise
  - setDisableSmartMatch
```
public void setDisableSmartMatch(boolean disableSmartMatch)
```
    Sets whether smart match is disabled.
    
    Parameters:
    
    disableSmartMatch - true to disable smart match, false to enable it
  - getNamingStrategy
```
public PropertyNamingStrategy getNamingStrategy()
```
    Gets the property naming strategy used by this provider.
    
    Returns:
    
    the property naming strategy, or null if none is set
    
    Since:
    
    2.0.52
  - setNamingStrategy
```
public void setNamingStrategy(PropertyNamingStrategy namingStrategy)
```
    Sets the property naming strategy used by this provider.
    
    Parameters:
    
    namingStrategy - the property naming strategy to set
    
    Since:
    
    2.0.52

Class ObjectReaderProvider

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

FASTJSON2_CLASS_LOADER

SAFE_MODE

DENYS

AUTO_TYPE_ACCEPT_LIST

DEFAULT_AUTO_TYPE_BEFORE_HANDLER

DEFAULT_AUTO_TYPE_HANDLER

DEFAULT_AUTO_TYPE_HANDLER_INIT_ERROR

readerCache

cache

cacheFieldBased

tclHashCaches

hashCache

mixInCache

autoTypeList

typeConverts

creator

modules

disableReferenceDetect

disableArrayMapping

disableJSONB

disableAutoType

disableSmartMatch

ANTI_COLLISION_HASH_MAP

ANTI_COLLISION_HASH_MAP_HASH

acceptHashCodes

acceptNameSet

autoTypeBeforeHandler

autoTypeHandler

namingStrategy

Constructor Detail

ObjectReaderProvider

ObjectReaderProvider

Method Detail

registerIfAbsent

addAutoTypeAccept

addAutoTypeDeny

getAutoTypeHandler

setAutoTypeHandler

getMixIn

cleanupMixIn

mixIn

registerSeeAlsoSubType

registerSeeAlsoSubType

register

register

registerIfAbsent

registerIfAbsent

unregisterObjectReader

unregisterObjectReader

unregisterObjectReader

unregisterObjectReader

register

unregister

cleanup

clear

match

cleanup

getCreator

init

getTypeConvert

registerTypeConvert

getObjectReader

getObjectReader

afterAutoType

checkAutoType

getModules

getBeanInfo

getFieldInfo

getFieldInfo

getFieldInfo

getObjectReader

createValueConsumerCreator

createCharArrayValueConsumerCreator