Package com.google.gson.internal.reflect

Class ReflectionHelper

java.lang.Object

com.google.gson.internal.reflect.ReflectionHelper

public class ReflectionHelper
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ReflectionHelper.RecordHelper	Internal abstraction over reflection when Records are supported.
private static class	ReflectionHelper.RecordNotSupportedHelper	Instance used when records are not supported
private static class	ReflectionHelper.RecordSupportedHelper

Field Summary

Fields

Modifier and Type	Field	Description
private static final ReflectionHelper.RecordHelper	RECORD_HELPER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ReflectionHelper()

Method Summary

Modifier and Type	Method	Description
private static void	appendExecutableParameters(AccessibleObject executable, StringBuilder stringBuilder)
static String	constructorToString(Constructor<?> constructor)	Creates a string representation for a constructor.
private static RuntimeException	createExceptionForRecordReflectionException(ReflectiveOperationException exception)
static RuntimeException	createExceptionForUnexpectedIllegalAccess(IllegalAccessException exception)
static String	fieldToString(Field field)	Creates a string representation for a field, omitting modifiers and the field type.
static String	getAccessibleObjectDescription(AccessibleObject object, boolean uppercaseFirstLetter)	Returns a short string describing the AccessibleObject in a human-readable way.
static Method	getAccessor(Class<?> raw, Field field)	Looks up the record accessor method that corresponds to the given record field
static <T> Constructor<T>	getCanonicalRecordConstructor(Class<T> raw)
static String[]	getRecordComponentNames(Class<?> raw)
static boolean	isRecord(Class<?> raw)	If records are supported on the JVM, this is equivalent to a call to Class.isRecord()
static void	makeAccessible(AccessibleObject object)	Internal implementation of making an AccessibleObject accessible.
static String	tryMakeAccessible(Constructor<?> constructor)	Tries making the constructor accessible, returning an exception message if this fails.

Methods inherited from class java.lang.Object

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

Field Details

RECORD_HELPER

private static final ReflectionHelper.RecordHelper RECORD_HELPER

Constructor Details

ReflectionHelper

private ReflectionHelper()

Method Details

makeAccessible

public static void makeAccessible(AccessibleObject object)
                           throws JsonIOException

Internal implementation of making an AccessibleObject accessible.

Parameters:

object - the object that AccessibleObject.setAccessible(boolean) should be called on.

Throws:

JsonIOException - if making the object accessible fails

getAccessibleObjectDescription

public static String getAccessibleObjectDescription(AccessibleObject object,
 boolean uppercaseFirstLetter)

Returns a short string describing the AccessibleObject in a human-readable way. The result is normally shorter than Object.toString() because it omits modifiers (e.g. final) and uses simple names for constructor and method parameter types.

Parameters:

object - object to describe

uppercaseFirstLetter - whether the first letter of the description should be uppercased

fieldToString

public static String fieldToString(Field field)

Creates a string representation for a field, omitting modifiers and the field type.

constructorToString

public static String constructorToString(Constructor<?> constructor)

Creates a string representation for a constructor. E.g.: java.lang.String(char[], int, int)

appendExecutableParameters

private static void appendExecutableParameters(AccessibleObject executable,
 StringBuilder stringBuilder)

tryMakeAccessible

public static String tryMakeAccessible(Constructor<?> constructor)

Tries making the constructor accessible, returning an exception message if this fails.

Parameters:

constructor - constructor to make accessible

Returns:

exception message; null if successful, non-null if unsuccessful

isRecord

public static boolean isRecord(Class<?> raw)

If records are supported on the JVM, this is equivalent to a call to Class.isRecord()

getRecordComponentNames

public static String[] getRecordComponentNames(Class<?> raw)

getAccessor

public static Method getAccessor(Class<?> raw,
 Field field)

Looks up the record accessor method that corresponds to the given record field

getCanonicalRecordConstructor

public static <T> Constructor<T> getCanonicalRecordConstructor(Class<T> raw)

createExceptionForUnexpectedIllegalAccess

public static RuntimeException createExceptionForUnexpectedIllegalAccess(IllegalAccessException exception)

createExceptionForRecordReflectionException

private static RuntimeException createExceptionForRecordReflectionException(ReflectiveOperationException exception)