Class J9IndexableObjectHelper

java.lang.Object

com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper

com.ibm.j9ddr.vm29.pointer.helper.J9IndexableObjectHelper

public class J9IndexableObjectHelper
extends J9ObjectHelper

Field Summary

Fields declared in class J9ObjectHelper

compressObjectReferences, mixedReferenceMode

Modifier and Type	Field	Description
static final boolean	compressObjectReferences
static final boolean	mixedReferenceMode

Constructor Summary

Constructors

Constructor	Description
J9IndexableObjectHelper()

Method Summary

Modifier and Type	Method	Description
static com.ibm.j9ddr.vm29.pointer.generated.J9ArrayClassPointer	clazz(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static long	contiguousHeaderSize()	Get the header size of a contiguous indexable object.
static long	discontiguousHeaderSize()	Get the header size of a discontiguous indexable object.
static U32	flags(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static void	getBooleanData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, boolean[] dst, int start, int length, int destStart)
static void	getByteData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, byte[] dst, int start, int length, int destStart)
static void	getCharData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, char[] dst, int start, int length, int destStart)
static String	getClassName(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static Object	getData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static void	getData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, Object dst, int start, int length, int destStart)	Get the requested array data elements and output these elements to the dst method parameter.
static VoidPointer	getDataAddrForIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)	Get the dataAddr field for the indexable object.
static String	getDataAsString(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array)
static String	getDataAsString(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array, int dumpLimit, int characterDumpLimit)
static void	getDoubleData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, double[] dst, int start, int length, int destStart)
static VoidPointer	getElementEA(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, int index, int dataSize)	Get the address for the desired element in the array.
static void	getFloatData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, float[] dst, int start, int length, int destStart)
static void	getIntData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, int[] dst, int start, int length, int destStart)
static void	getLongData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, long[] dst, int start, int length, int destStart)
static void	getObjectData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer[] dst, int start, int length, int destStart)
static void	getShortData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer, short[] dst, int start, int length, int destStart)
static boolean	hasCorrectDataAddrPointer(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)	Determine the validity of the data address belonging to objPointer.
static UDATA	monitor(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static U32	rawSize(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static U32	size(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
static U32	size(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)

Methods declared in class J9ObjectHelper

clazz, flags, getBooleanField, getByteField, getByteFromArrayByIndex, getCharField, getClassName, getDoubleField, getFieldOffset, getFloatField, getIntField, getJavaName, getLongField, getObjectField, getShortField, getStringField, headerSize, isIndexable, monitor, rawClazz, reportClassCacheStats, stringValue

Modifier and Type	Method	Description
static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer	clazz(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
static U32	flags(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
static boolean	getBooleanField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns an boolean field from the object or its super classes.
static byte	getByteField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns an byte field from the object or its super classes.
static byte	getByteFromArrayByIndex(Object obj, int index)
static char	getCharField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns a char field from the object or its super classes.
static String	getClassName(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)	Return the name of this J9Object's class
static double	getDoubleField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns a double field from the object or its super classes.
static J9ObjectFieldOffset	getFieldOffset(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, String name, String signature)
static float	getFloatField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns a float field from the object or its super classes.
static int	getIntField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns an int field from the object or its super classes.
static String	getJavaName(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
static long	getLongField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns an long field from the object or its super classes.
static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer	getObjectField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns an Object field from the object or its super classes.
static short	getShortField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns a short field from the object or its super classes.
static String	getStringField(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer, J9ObjectFieldOffset offset)	Returns a String field from the object or its super classes.
static long	headerSize()
static boolean	isIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)	Returns TRUE if an object is indexable, FALSE otherwise.
static UDATA	monitor(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
static UDATA	rawClazz(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
static void	reportClassCacheStats()
static String	stringValue(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)

Methods declared in class Object

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

Constructor Details

J9IndexableObjectHelper

public J9IndexableObjectHelper()

Method Details

flags

public static U32 flags(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                 throws CorruptDataException

Throws:

CorruptDataException

clazz

public static com.ibm.j9ddr.vm29.pointer.generated.J9ArrayClassPointer clazz(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                                                                      throws CorruptDataException

Throws:

CorruptDataException

monitor

public static UDATA monitor(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                     throws CorruptDataException

Throws:

CorruptDataException

getClassName

public static String getClassName(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                           throws CorruptDataException

Throws:

CorruptDataException

rawSize

public static U32 rawSize(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                   throws CorruptDataException

Throws:

CorruptDataException

size

public static U32 size(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                throws CorruptDataException

Throws:

CorruptDataException

size

public static U32 size(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer objPointer)
                throws CorruptDataException

Throws:

CorruptDataException

contiguousHeaderSize

public static long contiguousHeaderSize()

Get the header size of a contiguous indexable object.

discontiguousHeaderSize

public static long discontiguousHeaderSize()

Get the header size of a discontiguous indexable object.

getDataAddrForIndexable

public static VoidPointer getDataAddrForIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                                           throws CorruptDataException,
NoSuchFieldException

Get the dataAddr field for the indexable object.

Parameters:

objPointer - the array object whose dataAddr field we are accessing

Throws:

CorruptDataException - if there's a problem accessing the indexable object dataAddr field

NoSuchFieldException - if the indexable object dataAddr field does not exist on the build that generated the core file

getElementEA

public static VoidPointer getElementEA(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 int index,
 int dataSize)
                                throws CorruptDataException

Get the address for the desired element in the array.

Parameters:

objPointer - array object whose elements we are accessing

index - the desired index within then array

dataSize - size of the data held in the array

Returns:

the address for the desired element in the array

Throws:

CorruptDataException

hasCorrectDataAddrPointer

public static boolean hasCorrectDataAddrPointer(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                                         throws CorruptDataException

Determine the validity of the data address belonging to objPointer.

Parameters:

objPointer - array object who's data address validity we are checking

Returns:

true if the data address of objPointer is valid, false otherwise

Throws:

CorruptDataException - if there's a problem accessing the indexable object dataAddr field

getData

public static void getData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 Object dst,
 int start,
 int length,
 int destStart)
                    throws CorruptDataException

Get the requested array data elements and output these elements to the dst method parameter.

Parameters:

objPointer - array object whose elements we are accessing

dst - destination array where we will output the elements

start - starting index of the elements we are interested in

length - number of elements to output

destStart - starting index of destination array where we will start outputting elements

Throws:

CorruptDataException

getByteData

public static void getByteData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 byte[] dst,
 int start,
 int length,
 int destStart)
                        throws CorruptDataException

Throws:

CorruptDataException

getCharData

public static void getCharData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 char[] dst,
 int start,
 int length,
 int destStart)
                        throws CorruptDataException

Throws:

CorruptDataException

getDoubleData

public static void getDoubleData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 double[] dst,
 int start,
 int length,
 int destStart)
                          throws CorruptDataException

Throws:

CorruptDataException

getFloatData

public static void getFloatData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 float[] dst,
 int start,
 int length,
 int destStart)
                         throws CorruptDataException

Throws:

CorruptDataException

getIntData

public static void getIntData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 int[] dst,
 int start,
 int length,
 int destStart)
                       throws CorruptDataException

Throws:

CorruptDataException

getLongData

public static void getLongData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 long[] dst,
 int start,
 int length,
 int destStart)
                        throws CorruptDataException

Throws:

CorruptDataException

getShortData

public static void getShortData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 short[] dst,
 int start,
 int length,
 int destStart)
                         throws CorruptDataException

Throws:

CorruptDataException

getBooleanData

public static void getBooleanData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 boolean[] dst,
 int start,
 int length,
 int destStart)
                           throws CorruptDataException

Throws:

CorruptDataException

getObjectData

public static void getObjectData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer,
 com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer[] dst,
 int start,
 int length,
 int destStart)
                          throws CorruptDataException

Throws:

CorruptDataException

getData

public static Object getData(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer objPointer)
                      throws CorruptDataException

Throws:

CorruptDataException

getDataAsString

public static String getDataAsString(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array)
                              throws CorruptDataException

Throws:

CorruptDataException

getDataAsString

public static String getDataAsString(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array,
 int dumpLimit,
 int characterDumpLimit)
                              throws CorruptDataException

Throws:

CorruptDataException