Module openj9.dtfj

Package com.ibm.j9ddr.vm29.types

Class Scalar

java.lang.Object

com.ibm.j9ddr.vm29.j9.DataType

com.ibm.j9ddr.vm29.types.Scalar

Direct Known Subclasses:

IScalar, UScalar, Void

public abstract class Scalar
extends DataType

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	bitsPerBytes
protected static final int	bitsPerLong
protected long	data
protected String	toStringPattern

Fields declared in class com.ibm.j9ddr.vm29.j9.DataType

BITFIELD_FORMAT, pointerPackageName, process, SIZEOF_BOOL, structurePackageName

Constructor Summary

Constructors

Constructor	Description
Scalar()
Scalar(long value)
Scalar(Scalar value)

Method Summary

Modifier and Type	Method	Description
final boolean	allBitsIn(long bitmask)
boolean	anyBitsIn(long bitmask)
byte	byteValue()
protected void	checkComparisonValid(Scalar parameter)
static UDATA	convertBytesToSlots(UDATA size)
static UDATA	convertSlotsToBytes(UDATA size)
boolean	eq(long parameter)
boolean	eq(Scalar parameter)
boolean	equals(Object parameter)	This is a class based equals.
String	getHexValue()
boolean	gt(int parameter)
boolean	gt(long parameter)
boolean	gt(Scalar parameter)
boolean	gte(Scalar parameter)
int	intValue()
abstract boolean	isSigned()
boolean	isZero()
long	longValue()
boolean	lt(int parameter)
boolean	lt(long parameter)
boolean	lt(Scalar parameter)
boolean	lte(Scalar parameter)
boolean	maskAndCompare(long bitmask, long compareValue)
protected static UDATA	roundTo(UDATA value, long size)
static UDATA	roundToSizeofU32(UDATA value)
static UDATA	roundToSizeofU64(UDATA value)
static UDATA	roundToSizeofUDATA(UDATA value)
static UDATA	roundToSizeToFJ9object(UDATA value)
static UDATA	roundToSizeToObjectReference(UDATA value)
short	shortValue()
protected boolean	signBitSet()
abstract int	sizeof()

Methods declared in class com.ibm.j9ddr.vm29.j9.DataType

formatShortInteractive, getJ9RASPointer, getPointerPackageName, getProcess, getStructure, getStructure, getStructure, getStructurePackageName, init, setJ9RASPointer

Methods declared in class java.lang.Object

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

Field Details

data

protected long data

bitsPerBytes

protected static final int bitsPerBytes

See Also:

• Constant Field Values

bitsPerLong

protected static final int bitsPerLong

See Also:

• Constant Field Values

toStringPattern

protected String toStringPattern

Constructor Details

Scalar

public Scalar(long value)

Scalar

public Scalar(Scalar value)

Scalar

public Scalar()

Method Details

byteValue

public byte byteValue()

shortValue

public short shortValue()

intValue

public int intValue()

longValue

public long longValue()

getHexValue

public String getHexValue()

equals

public boolean equals(Object parameter)

This is a class based equals. Objects can only be equal if they are the same class. It is meant for use with Hash based collections. I.E. U16.equals(I16) is never true, regardless of the values represented by the objects. For mathematical equality use .eq(Scalar)

Overrides:

equals in class Object

Parameters:

parameter - Object the object to compare with this object.

Returns:

boolean true if the object is the same as this object false if it is different from this object.

See Also:

• Object.hashCode()

eq

public boolean eq(Scalar parameter)

eq

public boolean eq(long parameter)

checkComparisonValid

protected void checkComparisonValid(Scalar parameter)

gt

public boolean gt(int parameter)

gt

public boolean gt(long parameter)

lt

public boolean lt(int parameter)

lt

public boolean lt(long parameter)

isZero

public boolean isZero()

gt

public boolean gt(Scalar parameter)

gte

public boolean gte(Scalar parameter)

lt

public boolean lt(Scalar parameter)

lte

public boolean lte(Scalar parameter)

convertBytesToSlots

public static UDATA convertBytesToSlots(UDATA size)

convertSlotsToBytes

public static UDATA convertSlotsToBytes(UDATA size)

roundToSizeofUDATA

public static UDATA roundToSizeofUDATA(UDATA value)

roundToSizeToObjectReference

public static UDATA roundToSizeToObjectReference(UDATA value)

roundToSizeofU32

public static UDATA roundToSizeofU32(UDATA value)

roundToSizeofU64

public static UDATA roundToSizeofU64(UDATA value)

roundToSizeToFJ9object

public static UDATA roundToSizeToFJ9object(UDATA value)

roundTo

protected static UDATA roundTo(UDATA value,
 long size)

allBitsIn

public final boolean allBitsIn(long bitmask)

anyBitsIn

public boolean anyBitsIn(long bitmask)

maskAndCompare

public boolean maskAndCompare(long bitmask,
 long compareValue)

signBitSet

protected boolean signBitSet()

sizeof

public abstract int sizeof()

isSigned

public abstract boolean isSigned()