Class FunctionAccessor<T>

java.lang.Object

com.alibaba.fastjson2.introspect.FunctionAccessor<T>

Type Parameters:

T - the type of the object containing the property

All Implemented Interfaces:

PropertyAccessor

public abstract class FunctionAccessor<T>
extends Object
implements PropertyAccessor

Abstract base class for function-based property accessors. Provides common functionality for accessing object properties using getter and setter functions. This allows for accessing properties through functional interfaces rather than direct field access or method invocation, providing flexibility in how properties are accessed.

Implements PropertyAccessor interface using functional interfaces for property access, providing efficient property access for serialization and deserialization operations.

Field Summary

Fields

Modifier and Type	Field	Description
protected final BiFunction<PropertyAccessor, Throwable, RuntimeException>	exceptionHandler
protected final Object	getter	The getter function for accessing the property value
protected final String	name	The name of the property being accessed
protected final Class<?>	propertyClass	The runtime class of the property
protected final Type	propertyType	The generic type of the property
protected final Object	setter	The setter function for setting the property value

Constructor Summary

Constructors

Constructor	Description
FunctionAccessor(String name, Type propertyType, Class<?> propertyClass, Object getter, Object setter)
FunctionAccessor(String name, Type propertyType, Class<?> propertyClass, Object getter, Object setter, BiFunction<PropertyAccessor, Throwable, RuntimeException> exceptionHandler)	Constructs a FunctionAccessor with the specified parameters.

Method Summary

Modifier and Type	Method	Description
final String	name()	Returns the name of the property being accessed.
final Class<?>	propertyClass()	Returns the runtime class of the property.
final Type	propertyType()	Returns the generic type of the property.
final boolean	supportGet()	Checks if the property supports getting values.
final boolean	supportSet()	Checks if the property supports setting values.

Methods inherited from class Object

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

Methods inherited from interface PropertyAccessor

getBooleanValue, getByteValue, getCharValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getObject, getShortValue, setBooleanValue, setByteValue, setCharValue, setDoubleValue, setFloatValue, setIntValue, setLongValue, setObject, setShortValue

Field Details

name

protected final String name

The name of the property being accessed

propertyType

protected final Type propertyType

The generic type of the property

propertyClass

protected final Class<?> propertyClass

The runtime class of the property

getter

protected final Object getter

The getter function for accessing the property value

setter

protected final Object setter

The setter function for setting the property value

exceptionHandler

protected final BiFunction<PropertyAccessor, Throwable, RuntimeException> exceptionHandler

Constructor Details

FunctionAccessor

public FunctionAccessor(String name,
 Type propertyType,
 Class<?> propertyClass,
 Object getter,
 Object setter)

FunctionAccessor

public FunctionAccessor(String name,
 Type propertyType,
 Class<?> propertyClass,
 Object getter,
 Object setter,
 BiFunction<PropertyAccessor, Throwable, RuntimeException> exceptionHandler)

Constructs a FunctionAccessor with the specified parameters.

Parameters:

name - the name of the property

propertyType - the generic type of the property

propertyClass - the runtime class of the property

getter - the getter function for accessing the property value

setter - the setter function for setting the property value

Method Details

name

public final String name()

Description copied from interface: PropertyAccessor

Returns the name of the property being accessed.

Specified by:

name in interface PropertyAccessor

Returns:

the property name

supportGet

public final boolean supportGet()

Checks if the property supports getting values. A property supports getting if a getter function is provided.

Specified by:

supportGet in interface PropertyAccessor

Returns:

true if the getter function is not null, false otherwise

supportSet

public final boolean supportSet()

Checks if the property supports setting values. A property supports setting if a setter function is provided.

Specified by:

supportSet in interface PropertyAccessor

Returns:

true if the setter function is not null, false otherwise

propertyClass

public final Class<?> propertyClass()

Description copied from interface: PropertyAccessor

Returns the runtime class of the property.

Specified by:

propertyClass in interface PropertyAccessor

Returns:

the property class

propertyType

public final Type propertyType()

Description copied from interface: PropertyAccessor

Returns the generic type of the property.

Specified by:

propertyType in interface PropertyAccessor

Returns:

the property type