com.alibaba.fastjson2.introspect

Class MethodAccessor

java.lang.Object

com.alibaba.fastjson2.introspect.MethodAccessor

All Implemented Interfaces:

PropertyAccessor

Direct Known Subclasses:

PropertyAccessorFactory.MethodAccessorBigDecimal, PropertyAccessorFactory.MethodAccessorBigInteger, PropertyAccessorFactory.MethodAccessorBoolean, PropertyAccessorFactory.MethodAccessorBooleanValue, PropertyAccessorFactory.MethodAccessorByte, PropertyAccessorFactory.MethodAccessorByteValue, PropertyAccessorFactory.MethodAccessorCharacter, PropertyAccessorFactory.MethodAccessorCharValue, PropertyAccessorFactory.MethodAccessorDouble, PropertyAccessorFactory.MethodAccessorDoubleValue, PropertyAccessorFactory.MethodAccessorFloat, PropertyAccessorFactory.MethodAccessorFloatValue, PropertyAccessorFactory.MethodAccessorInteger, PropertyAccessorFactory.MethodAccessorIntValue, PropertyAccessorFactory.MethodAccessorLong, PropertyAccessorFactory.MethodAccessorLongValue, PropertyAccessorFactory.MethodAccessorNumber, PropertyAccessorFactory.MethodAccessorObject, PropertyAccessorFactory.MethodAccessorShort, PropertyAccessorFactory.MethodAccessorShortValue, PropertyAccessorFactory.MethodAccessorString

public abstract class MethodAccessor
extends java.lang.Object
implements PropertyAccessor

Abstract base class for method-based property accessors. Provides common functionality for accessing object properties using getter and setter methods. This allows for accessing properties through standard getter/setter method pairs, providing flexibility in how properties are accessed compared to direct field access.

Implements PropertyAccessor interface using method invocation for property access, providing efficient property access for serialization and deserialization operations.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.reflect.Method	getter The getter method for accessing the property value
protected java.lang.String	name The name of the property being accessed
protected java.lang.Class<?>	propertyClass The runtime class of the property
protected java.lang.reflect.Type	propertyType The generic type of the property
protected java.lang.reflect.Method	setter The setter method for setting the property value

Constructor Summary

Constructors

Constructor and Description
MethodAccessor(java.lang.String name, java.lang.reflect.Type propertyType, java.lang.Class<?> propertyClass, java.lang.reflect.Method getter, java.lang.reflect.Method setter) Constructs a MethodAccessor with the specified parameters.

Method Summary

Modifier and Type	Method and Description
(package private) JSONException	errorForGet(java.lang.Throwable e) Creates a JSON exception for getter errors.
(package private) JSONException	errorForSet(java.lang.Throwable e) Creates a JSON exception for setter errors.
java.lang.String	name() Returns the name of the property being accessed.
java.lang.Class<?>	propertyClass() Returns the runtime class of the property.
java.lang.reflect.Type	propertyType() Returns the generic type of the property.
boolean	supportGet() Checks if the property supports getting values.
boolean	supportSet() Checks if the property supports setting values.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.alibaba.fastjson2.introspect.PropertyAccessor

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

Field Detail

name

protected final java.lang.String name

The name of the property being accessed

propertyType

protected final java.lang.reflect.Type propertyType

The generic type of the property

propertyClass

protected final java.lang.Class<?> propertyClass

The runtime class of the property

getter

protected final java.lang.reflect.Method getter

The getter method for accessing the property value

setter

protected final java.lang.reflect.Method setter

The setter method for setting the property value

Constructor Detail

MethodAccessor

public MethodAccessor(java.lang.String name,
                      java.lang.reflect.Type propertyType,
                      java.lang.Class<?> propertyClass,
                      java.lang.reflect.Method getter,
                      java.lang.reflect.Method setter)

Constructs a MethodAccessor 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 method for accessing the property value

setter - the setter method for setting the property value

Method Detail

name

public final java.lang.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 method is provided.

Specified by:

supportGet in interface PropertyAccessor

Returns:

true if the getter method is not null, false otherwise

supportSet

public final boolean supportSet()

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

Specified by:

supportSet in interface PropertyAccessor

Returns:

true if the setter method is not null, false otherwise

propertyClass

public final java.lang.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 java.lang.reflect.Type propertyType()

Description copied from interface: PropertyAccessor

Returns the generic type of the property.

Specified by:

propertyType in interface PropertyAccessor

Returns:

the property type

errorForGet

final JSONException errorForGet(java.lang.Throwable e)

Creates a JSON exception for getter errors.

Parameters:

e - the exception that occurred during getting

Returns:

a JSONException with details about the getter error

errorForSet

final JSONException errorForSet(java.lang.Throwable e)

Creates a JSON exception for setter errors.

Parameters:

e - the exception that occurred during setting

Returns:

a JSONException with details about the setter error