OpenJDK 27 · sun.invoke.util.ValueConversions · APIdia, the JavaDoc alternative

Modifier and Type	Class and Description
private static class	ValueConversions.Handles
private static class	ValueConversions.WrapperCache Thread-safe canonicalized mapping from Wrapper to MethodHandle with unsynchronized reads and synchronized writes.

Modifier and Type	Field and Description
private static final ValueConversions.WrapperCache[]	BOX_CONVERSIONS
private static final ValueConversions.WrapperCache[]	CONVERT_PRIMITIVE_FUNCTIONS
private static final MethodHandles.Lookup	IMPL_LOOKUP
private static final Integer	ONE_INT
private static final Class<?>	THIS_CLASS
private static final ValueConversions.WrapperCache[]	UNBOX_CONVERSIONS
private static final Integer	ZERO_INT

Access	Constructor and Description
public	ValueConversions()

Method Summary

Modifier and Type	Method and Description
pack-priv static byte	booleanToByte(boolean x)
pack-priv static char	booleanToChar(boolean x)
pack-priv static double	booleanToDouble(boolean x)
pack-priv static float	booleanToFloat(boolean x)
pack-priv static int	booleanToInt(boolean x)
pack-priv static long	booleanToLong(boolean x)
pack-priv static short	booleanToShort(boolean x)
pack-priv static Boolean	boxBoolean(boolean x)
pack-priv static Byte	boxByte(byte x)
pack-priv static Character	boxCharacter(char x)
pack-priv static Double	boxDouble(double x)
public static MethodHandle	boxExact(Wrapper wrap)
pack-priv static Float	boxFloat(float x)
pack-priv static Integer	boxInteger(int x)
pack-priv static Long	boxLong(long x)
pack-priv static Short	boxShort(short x)
private static MethodType	boxType(Wrapper wrap)
pack-priv static boolean	byteToBoolean(byte x)
pack-priv static char	byteToChar(byte x)
pack-priv static double	byteToDouble(byte x)
pack-priv static float	byteToFloat(byte x)
pack-priv static int	byteToInt(byte x)
pack-priv static long	byteToLong(byte x)
pack-priv static short	byteToShort(byte x)
private static String	capitalize(String x)
pack-priv static boolean	charToBoolean(char x)
pack-priv static byte	charToByte(char x)
pack-priv static double	charToDouble(char x)
pack-priv static float	charToFloat(char x)
pack-priv static int	charToInt(char x)
pack-priv static long	charToLong(char x)
pack-priv static short	charToShort(char x)
public static MethodHandle	convertPrimitive(Wrapper wsrc, Wrapper wdst)
public static MethodHandle	convertPrimitive(Class<?> src, Class<?> dst)
pack-priv static boolean	doubleToBoolean(double x)
pack-priv static byte	doubleToByte(double x)
pack-priv static char	doubleToChar(double x)
pack-priv static float	doubleToFloat(double x)
pack-priv static int	doubleToInt(double x)
pack-priv static long	doubleToLong(double x)
pack-priv static short	doubleToShort(double x)
pack-priv static boolean	floatToBoolean(float x)
pack-priv static byte	floatToByte(float x)
pack-priv static char	floatToChar(float x)
pack-priv static double	floatToDouble(float x)
pack-priv static int	floatToInt(float x)
pack-priv static long	floatToLong(float x)
pack-priv static short	floatToShort(float x)
pack-priv static byte	fromBoolean(boolean x)
pack-priv static void	ignore(Object x)
public static MethodHandle	ignore()
pack-priv static boolean	intToBoolean(int x)
pack-priv static byte	intToByte(int x)
pack-priv static char	intToChar(int x)
pack-priv static double	intToDouble(int x)
pack-priv static float	intToFloat(int x)
pack-priv static long	intToLong(int x)
pack-priv static short	intToShort(int x)
pack-priv static boolean	longToBoolean(long x)
pack-priv static byte	longToByte(long x)
pack-priv static char	longToChar(long x)
pack-priv static double	longToDouble(long x)
pack-priv static float	longToFloat(long x)
pack-priv static int	longToInt(long x)
pack-priv static short	longToShort(long x)
private static InternalError	newInternalError(String message, Throwable cause)
private static ValueConversions.WrapperCache[]	newWrapperCaches(int n)
public static Number	primitiveConversion(Wrapper wrap, Object x, boolean cast) Produce a Number which represents the given value `x` according to the primitive type of the given wrapper `wrap`.
pack-priv static boolean	shortToBoolean(short x)
pack-priv static byte	shortToByte(short x)
pack-priv static char	shortToChar(short x)
pack-priv static double	shortToDouble(short x)
pack-priv static float	shortToFloat(short x)
pack-priv static int	shortToInt(short x)
pack-priv static long	shortToLong(short x)
pack-priv static boolean	toBoolean(byte x)
private static MethodHandle	unbox(Wrapper wrap, int kind)
pack-priv static boolean	unboxBoolean(Boolean x)
pack-priv static boolean	unboxBoolean(Object x, boolean cast)
pack-priv static byte	unboxByte(Byte x)
pack-priv static byte	unboxByte(Object x, boolean cast)
public static MethodHandle	unboxCast(Wrapper type) Return a casting unboxer for the given primitive type.
pack-priv static char	unboxCharacter(Character x)
pack-priv static char	unboxCharacter(Object x, boolean cast)
pack-priv static double	unboxDouble(Double x)
pack-priv static double	unboxDouble(Object x, boolean cast)
public static MethodHandle	unboxExact(Wrapper type) Return an exact unboxer for the given primitive type.
public static MethodHandle	unboxExact(Wrapper type, boolean throwNPE) Return an exact unboxer for the given primitive type, with optional null-to-zero conversion.
pack-priv static float	unboxFloat(Float x)
pack-priv static float	unboxFloat(Object x, boolean cast)
pack-priv static int	unboxInteger(Integer x)
pack-priv static int	unboxInteger(Object x, boolean cast)
pack-priv static long	unboxLong(Long x)
pack-priv static long	unboxLong(Object x, boolean cast)
pack-priv static short	unboxShort(Short x)
pack-priv static short	unboxShort(Object x, boolean cast)
private static MethodType	unboxType(Wrapper wrap, int kind)
public static MethodHandle	unboxWiden(Wrapper type) Return a widening unboxer for the given primitive type.
public static int	widenSubword(Object x) The JVM verifier allows boolean, byte, short, or char to widen to int.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

BOX_CONVERSIONS	back to summary
private static final ValueConversions.WrapperCache[] BOX_CONVERSIONS

CONVERT_PRIMITIVE_FUNCTIONS	back to summary
private static final ValueConversions.WrapperCache[] CONVERT_PRIMITIVE_FUNCTIONS

IMPL_LOOKUP	back to summary
private static final MethodHandles.Lookup IMPL_LOOKUP

ONE_INT	back to summary
private static final Integer ONE_INT

THIS_CLASS	back to summary
private static final Class<?> THIS_CLASS

UNBOX_CONVERSIONS	back to summary
private static final ValueConversions.WrapperCache[] UNBOX_CONVERSIONS

ZERO_INT	back to summary
private static final Integer ZERO_INT

ValueConversions	back to summary
public ValueConversions()

Method Detail

booleanToByte	back to summary
pack-priv static byte booleanToByte(boolean x)

booleanToChar	back to summary
pack-priv static char booleanToChar(boolean x)

booleanToDouble	back to summary
pack-priv static double booleanToDouble(boolean x)

booleanToFloat	back to summary
pack-priv static float booleanToFloat(boolean x)

booleanToInt	back to summary
pack-priv static int booleanToInt(boolean x)

booleanToLong	back to summary
pack-priv static long booleanToLong(boolean x)

booleanToShort	back to summary
pack-priv static short booleanToShort(boolean x)

boxBoolean	back to summary
pack-priv static Boolean boxBoolean(boolean x)

boxByte	back to summary
pack-priv static Byte boxByte(byte x)

boxCharacter	back to summary
pack-priv static Character boxCharacter(char x)

boxDouble	back to summary
pack-priv static Double boxDouble(double x)

boxExact	back to summary
public static MethodHandle boxExact(Wrapper wrap)

boxFloat	back to summary
pack-priv static Float boxFloat(float x)

boxInteger	back to summary
pack-priv static Integer boxInteger(int x)

boxLong	back to summary
pack-priv static Long boxLong(long x)

boxShort	back to summary
pack-priv static Short boxShort(short x)

boxType	back to summary
private static MethodType boxType(Wrapper wrap)

byteToBoolean	back to summary
pack-priv static boolean byteToBoolean(byte x)

byteToChar	back to summary
pack-priv static char byteToChar(byte x)

byteToDouble	back to summary
pack-priv static double byteToDouble(byte x)

byteToFloat	back to summary
pack-priv static float byteToFloat(byte x)

byteToInt	back to summary
pack-priv static int byteToInt(byte x)

byteToLong	back to summary
pack-priv static long byteToLong(byte x)

byteToShort	back to summary
pack-priv static short byteToShort(byte x)

capitalize	back to summary
private static String capitalize(String x)

charToBoolean	back to summary
pack-priv static boolean charToBoolean(char x)

charToByte	back to summary
pack-priv static byte charToByte(char x)

charToDouble	back to summary
pack-priv static double charToDouble(char x)

charToFloat	back to summary
pack-priv static float charToFloat(char x)

charToInt	back to summary
pack-priv static int charToInt(char x)

charToLong	back to summary
pack-priv static long charToLong(char x)

charToShort	back to summary
pack-priv static short charToShort(char x)

convertPrimitive	back to summary
public static MethodHandle convertPrimitive(Wrapper wsrc, Wrapper wdst)

convertPrimitive	back to summary
public static MethodHandle convertPrimitive(Class<?> src, Class<?> dst)

doubleToBoolean	back to summary
pack-priv static boolean doubleToBoolean(double x)

doubleToByte	back to summary
pack-priv static byte doubleToByte(double x)

doubleToChar	back to summary
pack-priv static char doubleToChar(double x)

doubleToFloat	back to summary
pack-priv static float doubleToFloat(double x)

doubleToInt	back to summary
pack-priv static int doubleToInt(double x)

doubleToLong	back to summary
pack-priv static long doubleToLong(double x)

doubleToShort	back to summary
pack-priv static short doubleToShort(double x)

floatToBoolean	back to summary
pack-priv static boolean floatToBoolean(float x)

floatToByte	back to summary
pack-priv static byte floatToByte(float x)

floatToChar	back to summary
pack-priv static char floatToChar(float x)

floatToDouble	back to summary
pack-priv static double floatToDouble(float x)

floatToInt	back to summary
pack-priv static int floatToInt(float x)

floatToLong	back to summary
pack-priv static long floatToLong(float x)

floatToShort	back to summary
pack-priv static short floatToShort(float x)

fromBoolean	back to summary
pack-priv static byte fromBoolean(boolean x)

ignore	back to summary
pack-priv static void ignore(Object x)

ignore	back to summary
public static MethodHandle ignore()

intToBoolean	back to summary
pack-priv static boolean intToBoolean(int x)

intToByte	back to summary
pack-priv static byte intToByte(int x)

intToChar	back to summary
pack-priv static char intToChar(int x)

intToDouble	back to summary
pack-priv static double intToDouble(int x)

intToFloat	back to summary
pack-priv static float intToFloat(int x)

intToLong	back to summary
pack-priv static long intToLong(int x)

intToShort	back to summary
pack-priv static short intToShort(int x)

longToBoolean	back to summary
pack-priv static boolean longToBoolean(long x)

longToByte	back to summary
pack-priv static byte longToByte(long x)

longToChar	back to summary
pack-priv static char longToChar(long x)

longToDouble	back to summary
pack-priv static double longToDouble(long x)

longToFloat	back to summary
pack-priv static float longToFloat(long x)

longToInt	back to summary
pack-priv static int longToInt(long x)

longToShort	back to summary
pack-priv static short longToShort(long x)

newInternalError	back to summary
private static InternalError newInternalError(String message, Throwable cause)

newWrapperCaches	back to summary
private static ValueConversions.WrapperCache[] newWrapperCaches(int n)

primitiveConversion	back to summary
public static Number primitiveConversion(Wrapper wrap, Object x, boolean cast) Produce a Number which represents the given value `x` according to the primitive type of the given wrapper `wrap`. Caller must invoke intValue, byteValue, longValue (etc.) on the result to retrieve the desired primitive value.

shortToBoolean	back to summary
pack-priv static boolean shortToBoolean(short x)

shortToByte	back to summary
pack-priv static byte shortToByte(short x)

shortToChar	back to summary
pack-priv static char shortToChar(short x)

shortToDouble	back to summary
pack-priv static double shortToDouble(short x)

shortToFloat	back to summary
pack-priv static float shortToFloat(short x)

shortToInt	back to summary
pack-priv static int shortToInt(short x)

shortToLong	back to summary
pack-priv static long shortToLong(short x)

toBoolean	back to summary
pack-priv static boolean toBoolean(byte x)

unbox	back to summary
private static MethodHandle unbox(Wrapper wrap, int kind)

unboxBoolean	back to summary
pack-priv static boolean unboxBoolean(Boolean x)

unboxBoolean	back to summary
pack-priv static boolean unboxBoolean(Object x, boolean cast)

unboxByte	back to summary
pack-priv static byte unboxByte(Byte x)

unboxByte	back to summary
pack-priv static byte unboxByte(Object x, boolean cast)

unboxCast	back to summary
public static MethodHandle unboxCast(Wrapper type) Return a casting unboxer for the given primitive type. Widen or narrow primitive values to the given type, or convert null to zero, as needed. The type of the unboxer is of a form like (Object)int.

unboxCharacter	back to summary
pack-priv static char unboxCharacter(Character x)

unboxCharacter	back to summary
pack-priv static char unboxCharacter(Object x, boolean cast)

unboxDouble	back to summary
pack-priv static double unboxDouble(Double x)

unboxDouble	back to summary
pack-priv static double unboxDouble(Object x, boolean cast)

unboxExact	back to summary
public static MethodHandle unboxExact(Wrapper type) Return an exact unboxer for the given primitive type.

unboxExact	back to summary
public static MethodHandle unboxExact(Wrapper type, boolean throwNPE) Return an exact unboxer for the given primitive type, with optional null-to-zero conversion. The boolean says whether to throw an NPE on a null value (false means unbox a zero). The type of the unboxer is of a form like (Integer)int.

unboxFloat	back to summary
pack-priv static float unboxFloat(Float x)

unboxFloat	back to summary
pack-priv static float unboxFloat(Object x, boolean cast)

unboxInteger	back to summary
pack-priv static int unboxInteger(Integer x)

unboxInteger	back to summary
pack-priv static int unboxInteger(Object x, boolean cast)

unboxLong	back to summary
pack-priv static long unboxLong(Long x)

unboxLong	back to summary
pack-priv static long unboxLong(Object x, boolean cast)

unboxShort	back to summary
pack-priv static short unboxShort(Short x)

unboxShort	back to summary
pack-priv static short unboxShort(Object x, boolean cast)

unboxType	back to summary
private static MethodType unboxType(Wrapper wrap, int kind)

unboxWiden	back to summary
public static MethodHandle unboxWiden(Wrapper type) Return a widening unboxer for the given primitive type. Widen narrower primitive boxes to the given type. Do not narrow any primitive values or convert null to zero. The type of the unboxer is of a form like (Object)int.

widenSubword	back to summary
public static int widenSubword(Object x) The JVM verifier allows boolean, byte, short, or char to widen to int. Support exactly this conversion, from a boxed value type Boolean, Byte, Short, Character, or Integer.

Modifier and Type	Method and Description
public MethodHandle	get(Wrapper w)
public synchronized MethodHandle	put(final Wrapper w, final MethodHandle mh)

public Class ValueConversions

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class ValueConversions.Handles

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

private Class ValueConversions.WrapperCache

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail